RHSA-2026:54400

Vulnerability from csaf_redhat - Published: 2026-08-12 14:56 - Updated: 2026-08-14 15:24
Summary
Red Hat Security Advisory: VolSync v0.15 security fixes and container updates
Severity
Important
Notes
Topic: VolSync v0.15 General Availability release images, which provide enhancements, security fixes, and updated container images. Red Hat Product Security has rated this update as having a security impact of Important. A Common Vulnerability Scoring System (CVSS) base score, which gives a detailed severity rating, is available for each vulnerability from the CVE links in the References section.
Details: VolSync v0.15 is a Kubernetes operator that enables asynchronous replication of persistent volumes within a cluster, or across clusters. After deploying the VolSync operator, it can create and maintain copies of your persistent data. For more information about VolSync, see: https://docs.redhat.com/documentation/en-us/red_hat_advanced_cluster_management_for_kubernetes/2.16/html/business_continuity/business-cont-overview#volsync See the VolSync open source community website at: https://volsync.readthedocs.io/en/stable/.
Terms of Use: This content is licensed under the Creative Commons Attribution 4.0 International License (https://creativecommons.org/licenses/by/4.0/). If you distribute this content, or a modified version of it, you must provide attribution to Red Hat Inc. and provide a link to the original.
CVE-2026-39829

A flaw was found in golang.org/x/crypto/ssh. The RSA and DSA public key parsers in the affected component did not enforce size limits on key parameters. This vulnerability allows an unauthenticated client to provide a crafted public key with an excessively large modulus or DSA parameter during public key authentication. Successful exploitation could lead to a denial of service (DoS) due to prolonged CPU consumption during signature verification.

7.5 (High)
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
CWE-1284 - Improper Validation of Specified Quantity in Input
Affected products
Product Identifier Version Remediation
Unresolved product id: Red Hat Advanced Cluster Management for Kubernetes 2.16:registry.redhat.io/rhacm2/volsync-rhel9@sha256:8cc7331a2b17bd12746e860d38443f43e95ec77a8ce6bedb892f6e9ae57adf39_amd64 —
Vendor Fix fix
Workaround
Unresolved product id: Red Hat Advanced Cluster Management for Kubernetes 2.16:registry.redhat.io/rhacm2/volsync-rhel9@sha256:c3f585f0b53eaa91b6d615b3fdbb001f65117f7685e438652b2d2f7d6a1759a7_s390x —
Vendor Fix fix
Workaround
Unresolved product id: Red Hat Advanced Cluster Management for Kubernetes 2.16:registry.redhat.io/rhacm2/volsync-rhel9@sha256:e7287730240e2f291f9a288b1c6303cf316ba486996b9c0c86994a8b65207e32_ppc64le —
Vendor Fix fix
Workaround
Unresolved product id: Red Hat Advanced Cluster Management for Kubernetes 2.16:registry.redhat.io/rhacm2/volsync-rhel9@sha256:ebe5b27219964ba01299499baa1a5d237c976018df7c370ddacc7b0c53ccb6d0_arm64 —
Vendor Fix fix
Workaround
Product Identifier Version Remediation
Unresolved product id: Red Hat Advanced Cluster Management for Kubernetes 2.16:registry.redhat.io/rhacm2/volsync-operator-bundle@sha256:29848647ba1965c23a770975538c66974406466a4d4c64c930d2ac911b5bd93f_amd64 —
Workaround
Threats
Impact Important
CVE-2026-39830

A flaw was found in golang.org/x/crypto/ssh. A remote malicious SSH peer can exploit this by sending unsolicited global request responses, which fills an internal buffer and blocks the connection's read loop. This prevents the associated resources from being released, leading to a resource leak per connection. The consequence is a Denial of Service (DoS) for the affected system.

7.5 (High)
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
CWE-772 - Missing Release of Resource after Effective Lifetime
Affected products
Product Identifier Version Remediation
Unresolved product id: Red Hat Advanced Cluster Management for Kubernetes 2.16:registry.redhat.io/rhacm2/volsync-rhel9@sha256:8cc7331a2b17bd12746e860d38443f43e95ec77a8ce6bedb892f6e9ae57adf39_amd64 —
Vendor Fix fix
Workaround
Unresolved product id: Red Hat Advanced Cluster Management for Kubernetes 2.16:registry.redhat.io/rhacm2/volsync-rhel9@sha256:c3f585f0b53eaa91b6d615b3fdbb001f65117f7685e438652b2d2f7d6a1759a7_s390x —
Vendor Fix fix
Workaround
Unresolved product id: Red Hat Advanced Cluster Management for Kubernetes 2.16:registry.redhat.io/rhacm2/volsync-rhel9@sha256:e7287730240e2f291f9a288b1c6303cf316ba486996b9c0c86994a8b65207e32_ppc64le —
Vendor Fix fix
Workaround
Unresolved product id: Red Hat Advanced Cluster Management for Kubernetes 2.16:registry.redhat.io/rhacm2/volsync-rhel9@sha256:ebe5b27219964ba01299499baa1a5d237c976018df7c370ddacc7b0c53ccb6d0_arm64 —
Vendor Fix fix
Workaround
Product Identifier Version Remediation
Unresolved product id: Red Hat Advanced Cluster Management for Kubernetes 2.16:registry.redhat.io/rhacm2/volsync-operator-bundle@sha256:29848647ba1965c23a770975538c66974406466a4d4c64c930d2ac911b5bd93f_amd64 —
Workaround
Threats
Impact Important
CVE-2026-39831

A flaw was found in golang.org/x/crypto/ssh. The Verify() method, responsible for FIDO/U2F security key types, did not properly check for user presence. This allowed signatures to be accepted without requiring a physical touch on the hardware security key. As a result, an attacker could potentially use a hardware security key in an unattended manner, bypassing a critical security control designed to ensure user intent.

8.1 (High)
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N
CWE-347 - Improper Verification of Cryptographic Signature
Affected products
Product Identifier Version Remediation
Unresolved product id: Red Hat Advanced Cluster Management for Kubernetes 2.16:registry.redhat.io/rhacm2/volsync-rhel9@sha256:8cc7331a2b17bd12746e860d38443f43e95ec77a8ce6bedb892f6e9ae57adf39_amd64 —
Vendor Fix fix
Unresolved product id: Red Hat Advanced Cluster Management for Kubernetes 2.16:registry.redhat.io/rhacm2/volsync-rhel9@sha256:c3f585f0b53eaa91b6d615b3fdbb001f65117f7685e438652b2d2f7d6a1759a7_s390x —
Vendor Fix fix
Unresolved product id: Red Hat Advanced Cluster Management for Kubernetes 2.16:registry.redhat.io/rhacm2/volsync-rhel9@sha256:e7287730240e2f291f9a288b1c6303cf316ba486996b9c0c86994a8b65207e32_ppc64le —
Vendor Fix fix
Unresolved product id: Red Hat Advanced Cluster Management for Kubernetes 2.16:registry.redhat.io/rhacm2/volsync-rhel9@sha256:ebe5b27219964ba01299499baa1a5d237c976018df7c370ddacc7b0c53ccb6d0_arm64 —
Vendor Fix fix
Product Identifier Version Remediation
Unresolved product id: Red Hat Advanced Cluster Management for Kubernetes 2.16:registry.redhat.io/rhacm2/volsync-operator-bundle@sha256:29848647ba1965c23a770975538c66974406466a4d4c64c930d2ac911b5bd93f_amd64 —
Threats
Impact Important
CVE-2026-42508

A flaw was found in golang.org/x/crypto/ssh/knownhosts. This vulnerability occurs because the system did not correctly check for the revocation status of a SignatureKey belonging to a Certificate Authority (CA). A remote attacker could potentially exploit this by presenting a revoked key, leading to the system accepting it as valid. This could allow an attacker to bypass security checks and potentially gain unauthorized access or spoof legitimate entities.

7.4 (High)
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N
CWE-295 - Improper Certificate Validation
Affected products
Product Identifier Version Remediation
Unresolved product id: Red Hat Advanced Cluster Management for Kubernetes 2.16:registry.redhat.io/rhacm2/volsync-rhel9@sha256:8cc7331a2b17bd12746e860d38443f43e95ec77a8ce6bedb892f6e9ae57adf39_amd64 —
Vendor Fix fix
Unresolved product id: Red Hat Advanced Cluster Management for Kubernetes 2.16:registry.redhat.io/rhacm2/volsync-rhel9@sha256:c3f585f0b53eaa91b6d615b3fdbb001f65117f7685e438652b2d2f7d6a1759a7_s390x —
Vendor Fix fix
Unresolved product id: Red Hat Advanced Cluster Management for Kubernetes 2.16:registry.redhat.io/rhacm2/volsync-rhel9@sha256:e7287730240e2f291f9a288b1c6303cf316ba486996b9c0c86994a8b65207e32_ppc64le —
Vendor Fix fix
Unresolved product id: Red Hat Advanced Cluster Management for Kubernetes 2.16:registry.redhat.io/rhacm2/volsync-rhel9@sha256:ebe5b27219964ba01299499baa1a5d237c976018df7c370ddacc7b0c53ccb6d0_arm64 —
Vendor Fix fix
Product Identifier Version Remediation
Unresolved product id: Red Hat Advanced Cluster Management for Kubernetes 2.16:registry.redhat.io/rhacm2/volsync-operator-bundle@sha256:29848647ba1965c23a770975538c66974406466a4d4c64c930d2ac911b5bd93f_amd64 —
Threats
Impact Important
CVE-2026-46597

A flaw was found in golang.org/x/crypto/ssh. A remote attacker could send specially crafted inputs to the AES-GCM packet decoder. This could lead to an incorrectly placed cast from bytes to an integer, causing a server-side panic and resulting in a Denial of Service (DoS) for the affected system.

7.5 (High)
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
CWE-681 - Incorrect Conversion between Numeric Types
Affected products
Product Identifier Version Remediation
Unresolved product id: Red Hat Advanced Cluster Management for Kubernetes 2.16:registry.redhat.io/rhacm2/volsync-rhel9@sha256:8cc7331a2b17bd12746e860d38443f43e95ec77a8ce6bedb892f6e9ae57adf39_amd64 —
Vendor Fix fix
Workaround
Unresolved product id: Red Hat Advanced Cluster Management for Kubernetes 2.16:registry.redhat.io/rhacm2/volsync-rhel9@sha256:c3f585f0b53eaa91b6d615b3fdbb001f65117f7685e438652b2d2f7d6a1759a7_s390x —
Vendor Fix fix
Workaround
Unresolved product id: Red Hat Advanced Cluster Management for Kubernetes 2.16:registry.redhat.io/rhacm2/volsync-rhel9@sha256:e7287730240e2f291f9a288b1c6303cf316ba486996b9c0c86994a8b65207e32_ppc64le —
Vendor Fix fix
Workaround
Unresolved product id: Red Hat Advanced Cluster Management for Kubernetes 2.16:registry.redhat.io/rhacm2/volsync-rhel9@sha256:ebe5b27219964ba01299499baa1a5d237c976018df7c370ddacc7b0c53ccb6d0_arm64 —
Vendor Fix fix
Workaround
Product Identifier Version Remediation
Unresolved product id: Red Hat Advanced Cluster Management for Kubernetes 2.16:registry.redhat.io/rhacm2/volsync-operator-bundle@sha256:29848647ba1965c23a770975538c66974406466a4d4c64c930d2ac911b5bd93f_amd64 —
Workaround
Threats
Impact Important
References
URL Category
https://access.redhat.com/errata/RHSA-2026:54400 self
https://access.redhat.com/security/cve/CVE-2026-39829 external
https://access.redhat.com/security/cve/CVE-2026-39830 external
https://access.redhat.com/security/cve/CVE-2026-39831 external
https://access.redhat.com/security/cve/CVE-2026-42508 external
https://access.redhat.com/security/cve/CVE-2026-46597 external
https://access.redhat.com/security/updates/classi… external
https://security.access.redhat.com/data/csaf/v2/a… self
https://access.redhat.com/security/cve/CVE-2026-39829 self
https://bugzilla.redhat.com/show_bug.cgi?id=2480681 external
https://www.cve.org/CVERecord?id=CVE-2026-39829 external
https://nvd.nist.gov/vuln/detail/CVE-2026-39829 external
https://go.dev/cl/781641 external
https://go.dev/cl/781661 external
https://go.dev/issue/79565 external
https://groups.google.com/g/golang-announce/c/a08… external
https://pkg.go.dev/vuln/GO-2026-5018 external
https://access.redhat.com/security/cve/CVE-2026-39830 self
https://bugzilla.redhat.com/show_bug.cgi?id=2480684 external
https://www.cve.org/CVERecord?id=CVE-2026-39830 external
https://nvd.nist.gov/vuln/detail/CVE-2026-39830 external
https://go.dev/cl/781640 external
https://go.dev/cl/781664 external
https://go.dev/issue/79564 external
https://pkg.go.dev/vuln/GO-2026-5017 external
https://access.redhat.com/security/cve/CVE-2026-39831 self
https://bugzilla.redhat.com/show_bug.cgi?id=2480675 external
https://www.cve.org/CVERecord?id=CVE-2026-39831 external
https://nvd.nist.gov/vuln/detail/CVE-2026-39831 external
https://go.dev/cl/781662 external
https://go.dev/issue/79566 external
https://pkg.go.dev/vuln/GO-2026-5019 external
https://access.redhat.com/security/cve/CVE-2026-42508 self
https://bugzilla.redhat.com/show_bug.cgi?id=2480688 external
https://www.cve.org/CVERecord?id=CVE-2026-42508 external
https://nvd.nist.gov/vuln/detail/CVE-2026-42508 external
https://go.dev/cl/781220 external
https://go.dev/issue/79568 external
https://pkg.go.dev/vuln/GO-2026-5021 external
https://access.redhat.com/security/cve/CVE-2026-46597 self
https://bugzilla.redhat.com/show_bug.cgi?id=2480678 external
https://www.cve.org/CVERecord?id=CVE-2026-46597 external
https://nvd.nist.gov/vuln/detail/CVE-2026-46597 external
https://go.dev/cl/781620 external
https://go.dev/issue/79561 external
https://pkg.go.dev/vuln/GO-2026-5013 external
To clipboard 

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    {
      "cve": "CVE-2026-39829",
      "cwe": {
        "id": "CWE-1284",
        "name": "Improper Validation of Specified Quantity in Input"
      },
      "discovery_date": "2026-05-22T04:01:30.092249+00:00",
      "flags": [
        {
          "label": "vulnerable_code_not_present",
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          "system_name": "Red Hat Bugzilla ID",
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        }
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        {
          "category": "description",
          "text": "A flaw was found in golang.org/x/crypto/ssh. The RSA and DSA public key parsers in the affected component did not enforce size limits on key parameters. This vulnerability allows an unauthenticated client to provide a crafted public key with an excessively large modulus or DSA parameter during public key authentication. Successful exploitation could lead to a denial of service (DoS) due to prolonged CPU consumption during signature verification.",
          "title": "Vulnerability description"
        },
        {
          "category": "summary",
          "text": "golang.org/x/crypto/ssh: golang.org/x/crypto/ssh: Denial of Service via crafted public key with excessive parameters",
          "title": "Vulnerability summary"
        },
        {
          "category": "other",
          "text": "This vulnerability in golang.org/x/crypto/ssh is rated as Important. An unauthenticated remote attacker could trigger a denial of service by providing a specially crafted public key with excessively large parameters during SSH public key authentication. This could lead to prolonged CPU consumption on the server, impacting service availability.",
          "title": "Statement"
        },
        {
          "category": "general",
          "text": "The CVSS score(s) listed for this vulnerability do not reflect the associated product\u0027s status, and are included for informational purposes to better understand the severity of this vulnerability.",
          "title": "CVSS score applicability"
        }
      ],
      "product_status": {
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          "category": "self",
          "summary": "Canonical URL",
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        },
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          "category": "external",
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          "date": "2026-08-12T14:56:44+00:00",
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            "category": "none"
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          "url": "https://access.redhat.com/errata/RHSA-2026:54400"
        },
        {
          "category": "workaround",
          "details": "Mitigation for this issue is either not available or the currently available options do not meet the Red Hat Product Security criteria comprising ease of use and deployment, applicability to widespread installation base, or stability.",
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        {
          "cvss_v3": {
            "attackComplexity": "LOW",
            "attackVector": "NETWORK",
            "availabilityImpact": "HIGH",
            "baseScore": 7.5,
            "baseSeverity": "HIGH",
            "confidentialityImpact": "NONE",
            "integrityImpact": "NONE",
            "privilegesRequired": "NONE",
            "scope": "UNCHANGED",
            "userInteraction": "NONE",
            "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
            "version": "3.1"
          },
          "products": [
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            "Red Hat Advanced Cluster Management for Kubernetes 2.16:registry.redhat.io/rhacm2/volsync-rhel9@sha256:8cc7331a2b17bd12746e860d38443f43e95ec77a8ce6bedb892f6e9ae57adf39_amd64",
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      ],
      "threats": [
        {
          "category": "impact",
          "details": "Important"
        }
      ],
      "title": "golang.org/x/crypto/ssh: golang.org/x/crypto/ssh: Denial of Service via crafted public key with excessive parameters"
    },
    {
      "cve": "CVE-2026-39830",
      "cwe": {
        "id": "CWE-772",
        "name": "Missing Release of Resource after Effective Lifetime"
      },
      "discovery_date": "2026-05-22T04:01:38.517202+00:00",
      "flags": [
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          "system_name": "Red Hat Bugzilla ID",
          "text": "2480684"
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        {
          "category": "description",
          "text": "A flaw was found in golang.org/x/crypto/ssh. A remote malicious SSH peer can exploit this by sending unsolicited global request responses, which fills an internal buffer and blocks the connection\u0027s read loop. This prevents the associated resources from being released, leading to a resource leak per connection. The consequence is a Denial of Service (DoS) for the affected system.",
          "title": "Vulnerability description"
        },
        {
          "category": "summary",
          "text": "golang.org/x/crypto/ssh: golang.org/x/crypto/ssh: Denial of Service via resource leak from unsolicited SSH responses",
          "title": "Vulnerability summary"
        },
        {
          "category": "other",
          "text": "This is an Important denial of service flaw in `golang.org/x/crypto/ssh`. A remote, unauthenticated attacker can exploit this vulnerability by sending unsolicited global request responses to an affected SSH server, leading to resource exhaustion and a denial of service. The impact is considered Important due to the potential for unauthenticated remote disruption of services utilizing the vulnerable SSH library.",
          "title": "Statement"
        },
        {
          "category": "general",
          "text": "The CVSS score(s) listed for this vulnerability do not reflect the associated product\u0027s status, and are included for informational purposes to better understand the severity of this vulnerability.",
          "title": "CVSS score applicability"
        }
      ],
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            "category": "none"
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          "url": "https://access.redhat.com/errata/RHSA-2026:54400"
        },
        {
          "category": "workaround",
          "details": "To mitigate this denial of service vulnerability, restrict network access to any service that utilizes the `golang.org/x/crypto/ssh` library and is exposed to untrusted networks. Implement firewall rules to allow connections only from trusted hosts or networks. This action limits the ability of malicious peers to send unsolicited global request responses. A restart of the affected service may be necessary for the new network rules to be applied effectively.",
          "product_ids": [
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            "Red Hat Advanced Cluster Management for Kubernetes 2.16:registry.redhat.io/rhacm2/volsync-rhel9@sha256:8cc7331a2b17bd12746e860d38443f43e95ec77a8ce6bedb892f6e9ae57adf39_amd64",
            "Red Hat Advanced Cluster Management for Kubernetes 2.16:registry.redhat.io/rhacm2/volsync-rhel9@sha256:c3f585f0b53eaa91b6d615b3fdbb001f65117f7685e438652b2d2f7d6a1759a7_s390x",
            "Red Hat Advanced Cluster Management for Kubernetes 2.16:registry.redhat.io/rhacm2/volsync-rhel9@sha256:e7287730240e2f291f9a288b1c6303cf316ba486996b9c0c86994a8b65207e32_ppc64le",
            "Red Hat Advanced Cluster Management for Kubernetes 2.16:registry.redhat.io/rhacm2/volsync-rhel9@sha256:ebe5b27219964ba01299499baa1a5d237c976018df7c370ddacc7b0c53ccb6d0_arm64"
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      "scores": [
        {
          "cvss_v3": {
            "attackComplexity": "LOW",
            "attackVector": "NETWORK",
            "availabilityImpact": "HIGH",
            "baseScore": 7.5,
            "baseSeverity": "HIGH",
            "confidentialityImpact": "NONE",
            "integrityImpact": "NONE",
            "privilegesRequired": "NONE",
            "scope": "UNCHANGED",
            "userInteraction": "NONE",
            "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
            "version": "3.1"
          },
          "products": [
            "Red Hat Advanced Cluster Management for Kubernetes 2.16:registry.redhat.io/rhacm2/volsync-operator-bundle@sha256:29848647ba1965c23a770975538c66974406466a4d4c64c930d2ac911b5bd93f_amd64",
            "Red Hat Advanced Cluster Management for Kubernetes 2.16:registry.redhat.io/rhacm2/volsync-rhel9@sha256:8cc7331a2b17bd12746e860d38443f43e95ec77a8ce6bedb892f6e9ae57adf39_amd64",
            "Red Hat Advanced Cluster Management for Kubernetes 2.16:registry.redhat.io/rhacm2/volsync-rhel9@sha256:c3f585f0b53eaa91b6d615b3fdbb001f65117f7685e438652b2d2f7d6a1759a7_s390x",
            "Red Hat Advanced Cluster Management for Kubernetes 2.16:registry.redhat.io/rhacm2/volsync-rhel9@sha256:e7287730240e2f291f9a288b1c6303cf316ba486996b9c0c86994a8b65207e32_ppc64le",
            "Red Hat Advanced Cluster Management for Kubernetes 2.16:registry.redhat.io/rhacm2/volsync-rhel9@sha256:ebe5b27219964ba01299499baa1a5d237c976018df7c370ddacc7b0c53ccb6d0_arm64"
          ]
        }
      ],
      "threats": [
        {
          "category": "impact",
          "details": "Important"
        }
      ],
      "title": "golang.org/x/crypto/ssh: golang.org/x/crypto/ssh: Denial of Service via resource leak from unsolicited SSH responses"
    },
    {
      "cve": "CVE-2026-39831",
      "cwe": {
        "id": "CWE-347",
        "name": "Improper Verification of Cryptographic Signature"
      },
      "discovery_date": "2026-05-22T04:01:12.861178+00:00",
      "flags": [
        {
          "label": "vulnerable_code_not_present",
          "product_ids": [
            "Red Hat Advanced Cluster Management for Kubernetes 2.16:registry.redhat.io/rhacm2/volsync-operator-bundle@sha256:29848647ba1965c23a770975538c66974406466a4d4c64c930d2ac911b5bd93f_amd64"
          ]
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      ],
      "ids": [
        {
          "system_name": "Red Hat Bugzilla ID",
          "text": "2480675"
        }
      ],
      "notes": [
        {
          "category": "description",
          "text": "A flaw was found in golang.org/x/crypto/ssh. The Verify() method, responsible for FIDO/U2F security key types, did not properly check for user presence. This allowed signatures to be accepted without requiring a physical touch on the hardware security key. As a result, an attacker could potentially use a hardware security key in an unattended manner, bypassing a critical security control designed to ensure user intent.",
          "title": "Vulnerability description"
        },
        {
          "category": "summary",
          "text": "golang.org/x/crypto/ssh: golang.org/x/crypto/ssh: Security key bypass due to missing user presence check",
          "title": "Vulnerability summary"
        },
        {
          "category": "general",
          "text": "The CVSS score(s) listed for this vulnerability do not reflect the associated product\u0027s status, and are included for informational purposes to better understand the severity of this vulnerability.",
          "title": "CVSS score applicability"
        }
      ],
      "product_status": {
        "fixed": [
          "Red Hat Advanced Cluster Management for Kubernetes 2.16:registry.redhat.io/rhacm2/volsync-rhel9@sha256:8cc7331a2b17bd12746e860d38443f43e95ec77a8ce6bedb892f6e9ae57adf39_amd64",
          "Red Hat Advanced Cluster Management for Kubernetes 2.16:registry.redhat.io/rhacm2/volsync-rhel9@sha256:c3f585f0b53eaa91b6d615b3fdbb001f65117f7685e438652b2d2f7d6a1759a7_s390x",
          "Red Hat Advanced Cluster Management for Kubernetes 2.16:registry.redhat.io/rhacm2/volsync-rhel9@sha256:e7287730240e2f291f9a288b1c6303cf316ba486996b9c0c86994a8b65207e32_ppc64le",
          "Red Hat Advanced Cluster Management for Kubernetes 2.16:registry.redhat.io/rhacm2/volsync-rhel9@sha256:ebe5b27219964ba01299499baa1a5d237c976018df7c370ddacc7b0c53ccb6d0_arm64"
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        ]
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      "references": [
        {
          "category": "self",
          "summary": "Canonical URL",
          "url": "https://access.redhat.com/security/cve/CVE-2026-39831"
        },
        {
          "category": "external",
          "summary": "RHBZ#2480675",
          "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2480675"
        },
        {
          "category": "external",
          "summary": "https://www.cve.org/CVERecord?id=CVE-2026-39831",
          "url": "https://www.cve.org/CVERecord?id=CVE-2026-39831"
        },
        {
          "category": "external",
          "summary": "https://nvd.nist.gov/vuln/detail/CVE-2026-39831",
          "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-39831"
        },
        {
          "category": "external",
          "summary": "https://go.dev/cl/781662",
          "url": "https://go.dev/cl/781662"
        },
        {
          "category": "external",
          "summary": "https://go.dev/issue/79566",
          "url": "https://go.dev/issue/79566"
        },
        {
          "category": "external",
          "summary": "https://groups.google.com/g/golang-announce/c/a082jnz-LvI",
          "url": "https://groups.google.com/g/golang-announce/c/a082jnz-LvI"
        },
        {
          "category": "external",
          "summary": "https://pkg.go.dev/vuln/GO-2026-5019",
          "url": "https://pkg.go.dev/vuln/GO-2026-5019"
        }
      ],
      "release_date": "2026-05-22T02:31:27.436000+00:00",
      "remediations": [
        {
          "category": "vendor_fix",
          "date": "2026-08-12T14:56:44+00:00",
          "details": "For more details, see the Red Hat Advanced Cluster Management for Kubernetes documentation:\n\nhttps://docs.redhat.com/documentation/en-us/red_hat_advanced_cluster_management_for_kubernetes/2.16/html/business_continuity/business-cont-overview#volsync",
          "product_ids": [
            "Red Hat Advanced Cluster Management for Kubernetes 2.16:registry.redhat.io/rhacm2/volsync-rhel9@sha256:8cc7331a2b17bd12746e860d38443f43e95ec77a8ce6bedb892f6e9ae57adf39_amd64",
            "Red Hat Advanced Cluster Management for Kubernetes 2.16:registry.redhat.io/rhacm2/volsync-rhel9@sha256:c3f585f0b53eaa91b6d615b3fdbb001f65117f7685e438652b2d2f7d6a1759a7_s390x",
            "Red Hat Advanced Cluster Management for Kubernetes 2.16:registry.redhat.io/rhacm2/volsync-rhel9@sha256:e7287730240e2f291f9a288b1c6303cf316ba486996b9c0c86994a8b65207e32_ppc64le",
            "Red Hat Advanced Cluster Management for Kubernetes 2.16:registry.redhat.io/rhacm2/volsync-rhel9@sha256:ebe5b27219964ba01299499baa1a5d237c976018df7c370ddacc7b0c53ccb6d0_arm64"
          ],
          "restart_required": {
            "category": "none"
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          "url": "https://access.redhat.com/errata/RHSA-2026:54400"
        }
      ],
      "scores": [
        {
          "cvss_v3": {
            "attackComplexity": "LOW",
            "attackVector": "NETWORK",
            "availabilityImpact": "NONE",
            "baseScore": 8.1,
            "baseSeverity": "HIGH",
            "confidentialityImpact": "HIGH",
            "integrityImpact": "HIGH",
            "privilegesRequired": "LOW",
            "scope": "UNCHANGED",
            "userInteraction": "NONE",
            "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N",
            "version": "3.1"
          },
          "products": [
            "Red Hat Advanced Cluster Management for Kubernetes 2.16:registry.redhat.io/rhacm2/volsync-operator-bundle@sha256:29848647ba1965c23a770975538c66974406466a4d4c64c930d2ac911b5bd93f_amd64",
            "Red Hat Advanced Cluster Management for Kubernetes 2.16:registry.redhat.io/rhacm2/volsync-rhel9@sha256:8cc7331a2b17bd12746e860d38443f43e95ec77a8ce6bedb892f6e9ae57adf39_amd64",
            "Red Hat Advanced Cluster Management for Kubernetes 2.16:registry.redhat.io/rhacm2/volsync-rhel9@sha256:c3f585f0b53eaa91b6d615b3fdbb001f65117f7685e438652b2d2f7d6a1759a7_s390x",
            "Red Hat Advanced Cluster Management for Kubernetes 2.16:registry.redhat.io/rhacm2/volsync-rhel9@sha256:e7287730240e2f291f9a288b1c6303cf316ba486996b9c0c86994a8b65207e32_ppc64le",
            "Red Hat Advanced Cluster Management for Kubernetes 2.16:registry.redhat.io/rhacm2/volsync-rhel9@sha256:ebe5b27219964ba01299499baa1a5d237c976018df7c370ddacc7b0c53ccb6d0_arm64"
          ]
        }
      ],
      "threats": [
        {
          "category": "impact",
          "details": "Important"
        }
      ],
      "title": "golang.org/x/crypto/ssh: golang.org/x/crypto/ssh: Security key bypass due to missing user presence check"
    },
    {
      "cve": "CVE-2026-42508",
      "cwe": {
        "id": "CWE-295",
        "name": "Improper Certificate Validation"
      },
      "discovery_date": "2026-05-22T04:01:49.515058+00:00",
      "flags": [
        {
          "label": "vulnerable_code_not_present",
          "product_ids": [
            "Red Hat Advanced Cluster Management for Kubernetes 2.16:registry.redhat.io/rhacm2/volsync-operator-bundle@sha256:29848647ba1965c23a770975538c66974406466a4d4c64c930d2ac911b5bd93f_amd64"
          ]
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      ],
      "ids": [
        {
          "system_name": "Red Hat Bugzilla ID",
          "text": "2480688"
        }
      ],
      "notes": [
        {
          "category": "description",
          "text": "A flaw was found in golang.org/x/crypto/ssh/knownhosts. This vulnerability occurs because the system did not correctly check for the revocation status of a SignatureKey belonging to a Certificate Authority (CA). A remote attacker could potentially exploit this by presenting a revoked key, leading to the system accepting it as valid. This could allow an attacker to bypass security checks and potentially gain unauthorized access or spoof legitimate entities.",
          "title": "Vulnerability description"
        },
        {
          "category": "summary",
          "text": "golang.org/x/crypto/ssh/knownhosts: golang: golang.org/x/crypto/ssh/knownhosts: Revocation bypass via unchecked SignatureKey",
          "title": "Vulnerability summary"
        },
        {
          "category": "other",
          "text": "Important: A flaw in `golang.org/x/crypto/ssh/knownhosts` allows a remote attacker to bypass security checks. This vulnerability arises because the system fails to properly verify the revocation status of a Certificate Authority (CA) `SignatureKey`. In Red Hat environments, this could enable an attacker to present a revoked key, leading to its acceptance as valid and potentially granting unauthorized access or facilitating the spoofing of legitimate entities.",
          "title": "Statement"
        },
        {
          "category": "general",
          "text": "The CVSS score(s) listed for this vulnerability do not reflect the associated product\u0027s status, and are included for informational purposes to better understand the severity of this vulnerability.",
          "title": "CVSS score applicability"
        }
      ],
      "product_status": {
        "fixed": [
          "Red Hat Advanced Cluster Management for Kubernetes 2.16:registry.redhat.io/rhacm2/volsync-rhel9@sha256:8cc7331a2b17bd12746e860d38443f43e95ec77a8ce6bedb892f6e9ae57adf39_amd64",
          "Red Hat Advanced Cluster Management for Kubernetes 2.16:registry.redhat.io/rhacm2/volsync-rhel9@sha256:c3f585f0b53eaa91b6d615b3fdbb001f65117f7685e438652b2d2f7d6a1759a7_s390x",
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          "category": "self",
          "summary": "Canonical URL",
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          "summary": "RHBZ#2480688",
          "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2480688"
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          "category": "external",
          "summary": "https://www.cve.org/CVERecord?id=CVE-2026-42508",
          "url": "https://www.cve.org/CVERecord?id=CVE-2026-42508"
        },
        {
          "category": "external",
          "summary": "https://nvd.nist.gov/vuln/detail/CVE-2026-42508",
          "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-42508"
        },
        {
          "category": "external",
          "summary": "https://go.dev/cl/781220",
          "url": "https://go.dev/cl/781220"
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        {
          "category": "external",
          "summary": "https://go.dev/issue/79568",
          "url": "https://go.dev/issue/79568"
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        {
          "category": "external",
          "summary": "https://groups.google.com/g/golang-announce/c/a082jnz-LvI",
          "url": "https://groups.google.com/g/golang-announce/c/a082jnz-LvI"
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        {
          "category": "external",
          "summary": "https://pkg.go.dev/vuln/GO-2026-5021",
          "url": "https://pkg.go.dev/vuln/GO-2026-5021"
        }
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      "remediations": [
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          "category": "vendor_fix",
          "date": "2026-08-12T14:56:44+00:00",
          "details": "For more details, see the Red Hat Advanced Cluster Management for Kubernetes documentation:\n\nhttps://docs.redhat.com/documentation/en-us/red_hat_advanced_cluster_management_for_kubernetes/2.16/html/business_continuity/business-cont-overview#volsync",
          "product_ids": [
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            "Red Hat Advanced Cluster Management for Kubernetes 2.16:registry.redhat.io/rhacm2/volsync-rhel9@sha256:c3f585f0b53eaa91b6d615b3fdbb001f65117f7685e438652b2d2f7d6a1759a7_s390x",
            "Red Hat Advanced Cluster Management for Kubernetes 2.16:registry.redhat.io/rhacm2/volsync-rhel9@sha256:e7287730240e2f291f9a288b1c6303cf316ba486996b9c0c86994a8b65207e32_ppc64le",
            "Red Hat Advanced Cluster Management for Kubernetes 2.16:registry.redhat.io/rhacm2/volsync-rhel9@sha256:ebe5b27219964ba01299499baa1a5d237c976018df7c370ddacc7b0c53ccb6d0_arm64"
          ],
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        }
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      "scores": [
        {
          "cvss_v3": {
            "attackComplexity": "HIGH",
            "attackVector": "NETWORK",
            "availabilityImpact": "NONE",
            "baseScore": 7.4,
            "baseSeverity": "HIGH",
            "confidentialityImpact": "HIGH",
            "integrityImpact": "HIGH",
            "privilegesRequired": "NONE",
            "scope": "UNCHANGED",
            "userInteraction": "NONE",
            "vectorString": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N",
            "version": "3.1"
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            "Red Hat Advanced Cluster Management for Kubernetes 2.16:registry.redhat.io/rhacm2/volsync-rhel9@sha256:c3f585f0b53eaa91b6d615b3fdbb001f65117f7685e438652b2d2f7d6a1759a7_s390x",
            "Red Hat Advanced Cluster Management for Kubernetes 2.16:registry.redhat.io/rhacm2/volsync-rhel9@sha256:e7287730240e2f291f9a288b1c6303cf316ba486996b9c0c86994a8b65207e32_ppc64le",
            "Red Hat Advanced Cluster Management for Kubernetes 2.16:registry.redhat.io/rhacm2/volsync-rhel9@sha256:ebe5b27219964ba01299499baa1a5d237c976018df7c370ddacc7b0c53ccb6d0_arm64"
          ]
        }
      ],
      "threats": [
        {
          "category": "impact",
          "details": "Important"
        }
      ],
      "title": "golang.org/x/crypto/ssh/knownhosts: golang: golang.org/x/crypto/ssh/knownhosts: Revocation bypass via unchecked SignatureKey"
    },
    {
      "cve": "CVE-2026-46597",
      "cwe": {
        "id": "CWE-681",
        "name": "Incorrect Conversion between Numeric Types"
      },
      "discovery_date": "2026-05-22T04:01:21.721980+00:00",
      "flags": [
        {
          "label": "vulnerable_code_not_present",
          "product_ids": [
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        {
          "system_name": "Red Hat Bugzilla ID",
          "text": "2480678"
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        {
          "category": "description",
          "text": "A flaw was found in golang.org/x/crypto/ssh. A remote attacker could send specially crafted inputs to the AES-GCM packet decoder. This could lead to an incorrectly placed cast from bytes to an integer, causing a server-side panic and resulting in a Denial of Service (DoS) for the affected system.",
          "title": "Vulnerability description"
        },
        {
          "category": "summary",
          "text": "golang.org/x/crypto/ssh: golang.org/x/crypto/ssh: Denial of Service via crafted AES-GCM packet decoder inputs",
          "title": "Vulnerability summary"
        },
        {
          "category": "other",
          "text": "This Important denial of service flaw in `golang.org/x/crypto/ssh` allows a remote attacker to trigger a server-side panic by sending specially crafted inputs to the AES-GCM packet decoder. This vulnerability could lead to service unavailability in Red Hat products that incorporate and expose SSH services built with the affected `golang.org/x/crypto/ssh` component.",
          "title": "Statement"
        },
        {
          "category": "general",
          "text": "The CVSS score(s) listed for this vulnerability do not reflect the associated product\u0027s status, and are included for informational purposes to better understand the severity of this vulnerability.",
          "title": "CVSS score applicability"
        }
      ],
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          "Red Hat Advanced Cluster Management for Kubernetes 2.16:registry.redhat.io/rhacm2/volsync-rhel9@sha256:e7287730240e2f291f9a288b1c6303cf316ba486996b9c0c86994a8b65207e32_ppc64le",
          "Red Hat Advanced Cluster Management for Kubernetes 2.16:registry.redhat.io/rhacm2/volsync-rhel9@sha256:ebe5b27219964ba01299499baa1a5d237c976018df7c370ddacc7b0c53ccb6d0_arm64"
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          "summary": "https://www.cve.org/CVERecord?id=CVE-2026-46597",
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          "category": "external",
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          "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-46597"
        },
        {
          "category": "external",
          "summary": "https://go.dev/cl/781620",
          "url": "https://go.dev/cl/781620"
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        {
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          "summary": "https://go.dev/issue/79561",
          "url": "https://go.dev/issue/79561"
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          "category": "external",
          "summary": "https://groups.google.com/g/golang-announce/c/a082jnz-LvI",
          "url": "https://groups.google.com/g/golang-announce/c/a082jnz-LvI"
        },
        {
          "category": "external",
          "summary": "https://pkg.go.dev/vuln/GO-2026-5013",
          "url": "https://pkg.go.dev/vuln/GO-2026-5013"
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      "release_date": "2026-05-22T02:31:26.754000+00:00",
      "remediations": [
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          "category": "vendor_fix",
          "date": "2026-08-12T14:56:44+00:00",
          "details": "For more details, see the Red Hat Advanced Cluster Management for Kubernetes documentation:\n\nhttps://docs.redhat.com/documentation/en-us/red_hat_advanced_cluster_management_for_kubernetes/2.16/html/business_continuity/business-cont-overview#volsync",
          "product_ids": [
            "Red Hat Advanced Cluster Management for Kubernetes 2.16:registry.redhat.io/rhacm2/volsync-rhel9@sha256:8cc7331a2b17bd12746e860d38443f43e95ec77a8ce6bedb892f6e9ae57adf39_amd64",
            "Red Hat Advanced Cluster Management for Kubernetes 2.16:registry.redhat.io/rhacm2/volsync-rhel9@sha256:c3f585f0b53eaa91b6d615b3fdbb001f65117f7685e438652b2d2f7d6a1759a7_s390x",
            "Red Hat Advanced Cluster Management for Kubernetes 2.16:registry.redhat.io/rhacm2/volsync-rhel9@sha256:e7287730240e2f291f9a288b1c6303cf316ba486996b9c0c86994a8b65207e32_ppc64le",
            "Red Hat Advanced Cluster Management for Kubernetes 2.16:registry.redhat.io/rhacm2/volsync-rhel9@sha256:ebe5b27219964ba01299499baa1a5d237c976018df7c370ddacc7b0c53ccb6d0_arm64"
          ],
          "restart_required": {
            "category": "none"
          },
          "url": "https://access.redhat.com/errata/RHSA-2026:54400"
        },
        {
          "category": "workaround",
          "details": "Mitigation for this issue is either not available or the currently available options do not meet the Red Hat Product Security criteria comprising ease of use and deployment, applicability to widespread installation base, or stability.",
          "product_ids": [
            "Red Hat Advanced Cluster Management for Kubernetes 2.16:registry.redhat.io/rhacm2/volsync-operator-bundle@sha256:29848647ba1965c23a770975538c66974406466a4d4c64c930d2ac911b5bd93f_amd64",
            "Red Hat Advanced Cluster Management for Kubernetes 2.16:registry.redhat.io/rhacm2/volsync-rhel9@sha256:8cc7331a2b17bd12746e860d38443f43e95ec77a8ce6bedb892f6e9ae57adf39_amd64",
            "Red Hat Advanced Cluster Management for Kubernetes 2.16:registry.redhat.io/rhacm2/volsync-rhel9@sha256:c3f585f0b53eaa91b6d615b3fdbb001f65117f7685e438652b2d2f7d6a1759a7_s390x",
            "Red Hat Advanced Cluster Management for Kubernetes 2.16:registry.redhat.io/rhacm2/volsync-rhel9@sha256:e7287730240e2f291f9a288b1c6303cf316ba486996b9c0c86994a8b65207e32_ppc64le",
            "Red Hat Advanced Cluster Management for Kubernetes 2.16:registry.redhat.io/rhacm2/volsync-rhel9@sha256:ebe5b27219964ba01299499baa1a5d237c976018df7c370ddacc7b0c53ccb6d0_arm64"
          ]
        }
      ],
      "scores": [
        {
          "cvss_v3": {
            "attackComplexity": "LOW",
            "attackVector": "NETWORK",
            "availabilityImpact": "HIGH",
            "baseScore": 7.5,
            "baseSeverity": "HIGH",
            "confidentialityImpact": "NONE",
            "integrityImpact": "NONE",
            "privilegesRequired": "NONE",
            "scope": "UNCHANGED",
            "userInteraction": "NONE",
            "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
            "version": "3.1"
          },
          "products": [
            "Red Hat Advanced Cluster Management for Kubernetes 2.16:registry.redhat.io/rhacm2/volsync-operator-bundle@sha256:29848647ba1965c23a770975538c66974406466a4d4c64c930d2ac911b5bd93f_amd64",
            "Red Hat Advanced Cluster Management for Kubernetes 2.16:registry.redhat.io/rhacm2/volsync-rhel9@sha256:8cc7331a2b17bd12746e860d38443f43e95ec77a8ce6bedb892f6e9ae57adf39_amd64",
            "Red Hat Advanced Cluster Management for Kubernetes 2.16:registry.redhat.io/rhacm2/volsync-rhel9@sha256:c3f585f0b53eaa91b6d615b3fdbb001f65117f7685e438652b2d2f7d6a1759a7_s390x",
            "Red Hat Advanced Cluster Management for Kubernetes 2.16:registry.redhat.io/rhacm2/volsync-rhel9@sha256:e7287730240e2f291f9a288b1c6303cf316ba486996b9c0c86994a8b65207e32_ppc64le",
            "Red Hat Advanced Cluster Management for Kubernetes 2.16:registry.redhat.io/rhacm2/volsync-rhel9@sha256:ebe5b27219964ba01299499baa1a5d237c976018df7c370ddacc7b0c53ccb6d0_arm64"
          ]
        }
      ],
      "threats": [
        {
          "category": "impact",
          "details": "Important"
        }
      ],
      "title": "golang.org/x/crypto/ssh: golang.org/x/crypto/ssh: Denial of Service via crafted AES-GCM packet decoder inputs"
    }
  ]
}



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Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.

Sightings

Author Source Type Date Other

Nomenclature

  • Seen: The vulnerability was mentioned, discussed, or observed by the user.
  • Confirmed: The vulnerability has been validated from an analyst's perspective.
  • Published Proof of Concept: A public proof of concept is available for this vulnerability.
  • Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
  • Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
  • Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
  • Not confirmed: The user expressed doubt about the validity of the vulnerability.
  • Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.


Detection rules are retrieved from Rulezet.