RHSA-2026:2852

Vulnerability from csaf_redhat - Published: 2026-02-17 23:04 - Updated: 2026-02-18 12:42
Summary
Red Hat Security Advisory: OpenShift Security Profiles Operator bug fix and enhancement update

Notes

Topic
An updated OpenShift Security Profiles Operator image that fixes various bugs and adds new enhancements is now available for the Red Hat OpenShift Enterprise 4 catalog.
Details
The Security Profiles Operator v0.10.0 is now available. See the documentation for release information: https://docs.redhat.com/en/documentation/openshift_container_platform/latest/html/security_and_compliance/security-profiles-operator
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.
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      ],
      "ids": [
        {
          "system_name": "Red Hat Bugzilla ID",
          "text": "2419056"
        }
      ],
      "notes": [
        {
          "category": "description",
          "text": "A flaw was found in Fulcio, a free-to-use certificate authority. This vulnerability allows a denial of service (DoS) due to excessive memory allocation when processing a malicious OpenID Connect (OIDC) identity token containing numerous period characters.",
          "title": "Vulnerability description"
        },
        {
          "category": "summary",
          "text": "github.com/sigstore/fulcio: Fulcio: Denial of Service via crafted OpenID Connect (OIDC) token",
          "title": "Vulnerability summary"
        },
        {
          "category": "other",
          "text": "This vulnerability is rated Important for Red Hat as Fulcio, a certificate authority used for issuing code signing certificates, is susceptible to a denial of service when processing a specially crafted OpenID Connect (OIDC) token. This could lead to resource exhaustion and service unavailability in affected Red Hat products that utilize Fulcio.",
          "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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          "summary": "https://www.cve.org/CVERecord?id=CVE-2025-66506",
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        },
        {
          "category": "external",
          "summary": "https://nvd.nist.gov/vuln/detail/CVE-2025-66506",
          "url": "https://nvd.nist.gov/vuln/detail/CVE-2025-66506"
        },
        {
          "category": "external",
          "summary": "https://github.com/sigstore/fulcio/commit/765a0e57608b9ef390e1eeeea8595b9054c63a5a",
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      "release_date": "2025-12-04T22:04:41.637000+00:00",
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            "category": "none"
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          "url": "https://access.redhat.com/errata/RHSA-2026:2852"
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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"
          },
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        {
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          "details": "Important"
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      "title": "github.com/sigstore/fulcio: Fulcio: Denial of Service via crafted OpenID Connect (OIDC) token"
    },
    {
      "cve": "CVE-2025-66564",
      "cwe": {
        "id": "CWE-405",
        "name": "Asymmetric Resource Consumption (Amplification)"
      },
      "discovery_date": "2025-12-04T23:01:11.786030+00:00",
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          "title": "Vulnerability description"
        },
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          "category": "summary",
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          "title": "Vulnerability summary"
        },
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          "category": "other",
          "text": "This vulnerability is rated Important for Red Hat products. The Sigstore Timestamp Authority, a service for issuing RFC 3161 timestamps, is prone to excessive memory allocation. This occurs when processing untrusted OID payloads with many period characters or malformed Content-Type headers. An unauthenticated attacker could exploit this flaw to trigger a denial of service in affected Red Hat products that utilize this component.",
          "title": "Statement"
        },
        {
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          "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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          "summary": "Canonical URL",
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        },
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          "category": "external",
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        },
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          "category": "external",
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        },
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          "category": "external",
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      "release_date": "2025-12-04T22:37:13.307000+00:00",
      "remediations": [
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          "date": "2026-02-17T23:04:21+00:00",
          "details": "Before applying this update, make sure all previously released errata relevant to your\nsystem have been applied. For details on how to apply this update, refer to:\n  \nhttps://docs.openshift.com/container-platform/latest/updating/updating_a_cluster/updating-cluster-cli.html",
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            "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"
          },
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            "OpenShift Security Profiles Operator 1:registry.redhat.io/compliance/openshift-security-profiles-rhel8-operator@sha256:66c78e05a610eb31b8a350502b778305e53da9576ae124a3eb7ab3cc29595297_ppc64le",
            "OpenShift Security Profiles Operator 1:registry.redhat.io/compliance/openshift-security-profiles-rhel8-operator@sha256:e599c020744224294ed24d028ad1c5f4cca1192d9d487517286a6b7591d80f54_amd64",
            "OpenShift Security Profiles Operator 1:registry.redhat.io/compliance/openshift-selinuxd-rhel10@sha256:1484157970f2cc4470dfec565fb5f81137402bdcd52d63cd40be4b0e9c8ce039_amd64",
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            "OpenShift Security Profiles Operator 1:registry.redhat.io/compliance/openshift-selinuxd-rhel8@sha256:7143fa2fba9fb559ef13143cebfa69dbd7cb1f94284a640e5cbdb700e6cf6de0_amd64",
            "OpenShift Security Profiles Operator 1:registry.redhat.io/compliance/openshift-selinuxd-rhel8@sha256:8baa5bd3ecbbb1708d1270f7f30b707dd381e72b9a4fef554044039d6404771e_ppc64le",
            "OpenShift Security Profiles Operator 1:registry.redhat.io/compliance/openshift-selinuxd-rhel9@sha256:2b2e1b736ad8d69e15ede3f38de2637c695d0819e66d4c9c9df0aa3ebeee9df9_ppc64le",
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      "threats": [
        {
          "category": "impact",
          "details": "Important"
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      ],
      "title": "github.com/sigstore/timestamp-authority: Sigstore Timestamp Authority: Denial of Service via excessive OID or Content-Type header parsing"
    }
  ]
}


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Tags
Taxonomy of the tags.




Sightings

Author Source Type Date

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.