RHSA-2026:68687
Vulnerability from csaf_redhat - Published: 2026-09-17 15:19 - Updated: 2026-09-21 11:53Summary
Red Hat Security Advisory: Kiali 2.4.23 for Red Hat OpenShift Service Mesh 3.0
Severity
Important
Notes
Topic: Kiali 2.4.23 for Red Hat OpenShift Service Mesh 3.0 is now available.
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 link(s) in the References section.
Details: Kiali 2.4.23, for Red Hat OpenShift Service Mesh 3.0, provides observability for the service mesh by offering a visual representation of the mesh topology and metrics, helping users monitor, trace, and manage efficiently.
Security Fix(es):
* CVE-2026-56860 openshift-service-mesh/kiali-rhel9: golang net/url: Denial of Service from quadratic complexity in path resolution (OSSM-15400)
* CVE-2026-56862 openshift-service-mesh/kiali-rhel9: Golang crypto/tls: Denial of Service via indefinite KeyUpdate messages (OSSM-15443)
* CVE-2026-33818 openshift-service-mesh/kiali-rhel9: Go encoding/asn1: Denial of Service via excessive recursion in Unmarshal (OSSM-15454)
* CVE-2026-59879 openshift-service-mesh/kiali-ossmc-rhel9: Immutable.js: Denial of Service due to mishandling of large index values in List operations (OSSM-15820)
* CVE-2026-59879 openshift-service-mesh/kiali-rhel9: Immutable.js: Denial of Service due to mishandling of large index values in List operations (OSSM-15825)
* CVE-2026-84375 openshift-service-mesh/kiali-ossmc-rhel9: js-yaml: Denial of Service vulnerability in YAML parsing (OSSM-15842)
* CVE-2026-84375 openshift-service-mesh/kiali-rhel9: js-yaml: Denial of Service vulnerability in YAML parsing (OSSM-15843)
For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section.
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.
A flaw was found in the `encoding/asn1` package in Go. An attacker could provide a specially crafted, deeply-nested Abstract Syntax Notation One (ASN.1) structure, leading to excessive recursion during the `Unmarshal` operation. This could result in stack exhaustion and a Denial of Service (DoS) condition.
7.5 (High)
Affected products
Fixed
4 products
| Product | Identifier | Version | Remediation |
|---|---|---|---|
| Unresolved product id: Red Hat OpenShift Service Mesh 3.0:registry.redhat.io/openshift-service-mesh/kiali-rhel9@sha256:36b34247561a75006a9884c1679be740c2e5c07d582868d451272de47251bac8_s390x | — |
Vendor Fix
fix
|
|
| Unresolved product id: Red Hat OpenShift Service Mesh 3.0:registry.redhat.io/openshift-service-mesh/kiali-rhel9@sha256:47b90abe445f781b5f7f47ea60fda1b19453cb518bf044584130f1dd80d0122a_amd64 | — |
Vendor Fix
fix
|
|
| Unresolved product id: Red Hat OpenShift Service Mesh 3.0:registry.redhat.io/openshift-service-mesh/kiali-rhel9@sha256:cd22a01d85d4d1026b37cfdd62df0509c31be9871827a58716d66b61fa5be37c_ppc64le | — |
Vendor Fix
fix
|
|
| Unresolved product id: Red Hat OpenShift Service Mesh 3.0:registry.redhat.io/openshift-service-mesh/kiali-rhel9@sha256:d7940d2744313a17045a670db146235d11b43600db6a018e87127938ed3db011_arm64 | — |
Vendor Fix
fix
|
Known not affected
4 products
| Product | Identifier | Version | Remediation |
|---|---|---|---|
| Unresolved product id: Red Hat OpenShift Service Mesh 3.0:registry.redhat.io/openshift-service-mesh/kiali-ossmc-rhel9@sha256:4f3e00f4e2bea2e19b9526dadb6f38881ce9ce9cf8962e1725e724c7ccb25626_amd64 | — | ||
| Unresolved product id: Red Hat OpenShift Service Mesh 3.0:registry.redhat.io/openshift-service-mesh/kiali-ossmc-rhel9@sha256:52f157c587f62188bb2816d76562ce5e0ae0751ac7d8b40e9497fa7b7858f576_ppc64le | — | ||
| Unresolved product id: Red Hat OpenShift Service Mesh 3.0:registry.redhat.io/openshift-service-mesh/kiali-ossmc-rhel9@sha256:8749c4826054a448ce5db47fc8c4ca6e297a096cc187513fb1fd20892715324c_arm64 | — | ||
| Unresolved product id: Red Hat OpenShift Service Mesh 3.0:registry.redhat.io/openshift-service-mesh/kiali-ossmc-rhel9@sha256:b392a75159a261dcf85e3f1c5832cb6c3dcc91afce7b765e8d1a633936d294a5_s390x | — |
Threats
Impact
Important
A flaw was found in `net/url`, a component of `golang`. This vulnerability arises when resolving relative paths that contain numerous parent directory ('..') segments. A remote attacker could exploit this by providing a specially crafted path, leading to quadratic time complexity and excessive memory allocation. This can result in a Denial of Service (DoS) due to resource exhaustion.
7.5 (High)
Affected products
Fixed
4 products, the same list as for
CVE-2026-33818
Known not affected
4 products, the same list as for
CVE-2026-33818
Threats
Impact
Important
A flaw was found in the `crypto/tls` package, part of `golang`. A malicious client can exploit this vulnerability by continuously sending KeyUpdate messages to a server. This forces the server to perform indefinite key derivation operations, leading to resource exhaustion and a Denial of Service (DoS) condition.
7.5 (High)
Affected products
Fixed
4 products, the same list as for
CVE-2026-33818
Known not affected
4 products, the same list as for
CVE-2026-33818
Threats
Impact
Important
A flaw was found in Immutable.js, a library providing persistent immutable data structures. This vulnerability occurs when specific List operations, such as List#set or List#setSize, are provided with an index or size value within a particular large range. An attacker could exploit this by providing specially crafted input, leading to an uncatchable infinite loop or unbounded memory allocation, ultimately causing a Denial of Service (DoS) for applications using the library.
5.3 (Medium)
Affected products
Fixed
8 products
| Product | Identifier | Version | Remediation |
|---|---|---|---|
| Unresolved product id: Red Hat OpenShift Service Mesh 3.0:registry.redhat.io/openshift-service-mesh/kiali-ossmc-rhel9@sha256:4f3e00f4e2bea2e19b9526dadb6f38881ce9ce9cf8962e1725e724c7ccb25626_amd64 | — |
Vendor Fix
fix
Workaround
|
|
| Unresolved product id: Red Hat OpenShift Service Mesh 3.0:registry.redhat.io/openshift-service-mesh/kiali-ossmc-rhel9@sha256:52f157c587f62188bb2816d76562ce5e0ae0751ac7d8b40e9497fa7b7858f576_ppc64le | — |
Vendor Fix
fix
Workaround
|
|
| Unresolved product id: Red Hat OpenShift Service Mesh 3.0:registry.redhat.io/openshift-service-mesh/kiali-ossmc-rhel9@sha256:8749c4826054a448ce5db47fc8c4ca6e297a096cc187513fb1fd20892715324c_arm64 | — |
Vendor Fix
fix
Workaround
|
|
| Unresolved product id: Red Hat OpenShift Service Mesh 3.0:registry.redhat.io/openshift-service-mesh/kiali-ossmc-rhel9@sha256:b392a75159a261dcf85e3f1c5832cb6c3dcc91afce7b765e8d1a633936d294a5_s390x | — |
Vendor Fix
fix
Workaround
|
|
| Unresolved product id: Red Hat OpenShift Service Mesh 3.0:registry.redhat.io/openshift-service-mesh/kiali-rhel9@sha256:36b34247561a75006a9884c1679be740c2e5c07d582868d451272de47251bac8_s390x | — |
Vendor Fix
fix
Workaround
|
|
| Unresolved product id: Red Hat OpenShift Service Mesh 3.0:registry.redhat.io/openshift-service-mesh/kiali-rhel9@sha256:47b90abe445f781b5f7f47ea60fda1b19453cb518bf044584130f1dd80d0122a_amd64 | — |
Vendor Fix
fix
Workaround
|
|
| Unresolved product id: Red Hat OpenShift Service Mesh 3.0:registry.redhat.io/openshift-service-mesh/kiali-rhel9@sha256:cd22a01d85d4d1026b37cfdd62df0509c31be9871827a58716d66b61fa5be37c_ppc64le | — |
Vendor Fix
fix
Workaround
|
|
| Unresolved product id: Red Hat OpenShift Service Mesh 3.0:registry.redhat.io/openshift-service-mesh/kiali-rhel9@sha256:d7940d2744313a17045a670db146235d11b43600db6a018e87127938ed3db011_arm64 | — |
Vendor Fix
fix
Workaround
|
Threats
Impact
Moderate
A flaw was found in js-yaml, a JavaScript YAML parser. An attacker can exploit this by providing a specially crafted YAML document that causes the parser to perform excessive processing when handling merge keys with empty sources. This can lead to prolonged CPU consumption, effectively causing a denial of service (DoS) for applications that process untrusted YAML input.
7.5 (High)
Affected products
Fixed
8 products, the same list as for
CVE-2026-59879
Threats
Impact
Moderate
References
51 references
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"scores": [
{
"cvss_v3": {
"attackComplexity": "LOW",
"attackVector": "NETWORK",
"availabilityImpact": "LOW",
"baseScore": 5.3,
"baseSeverity": "MEDIUM",
"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:L",
"version": "3.1"
},
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"threats": [
{
"category": "impact",
"details": "Moderate"
}
],
"title": "immutable-js: Immutable.js: Denial of Service due to mishandling of large index values in List operations"
},
{
"cve": "CVE-2026-84375",
"cwe": {
"id": "CWE-835",
"name": "Loop with Unreachable Exit Condition (\u0027Infinite Loop\u0027)"
},
"discovery_date": "2026-09-01T21:51:30.205823+00:00",
"ids": [
{
"system_name": "Red Hat Bugzilla ID",
"text": "2527118"
}
],
"notes": [
{
"category": "description",
"text": "A flaw was found in js-yaml, a JavaScript YAML parser. An attacker can exploit this by providing a specially crafted YAML document that causes the parser to perform excessive processing when handling merge keys with empty sources. This can lead to prolonged CPU consumption, effectively causing a denial of service (DoS) for applications that process untrusted YAML input.",
"title": "Vulnerability description"
},
{
"category": "summary",
"text": "js-yaml: js-yaml: Denial of Service vulnerability in YAML parsing",
"title": "Vulnerability summary"
},
{
"category": "other",
"text": "This is an Important denial of service vulnerability in js-yaml, affecting applications that process untrusted YAML input. The flaw allows an attacker to craft a small YAML document that, when parsed, can lead to prolonged CPU consumption due to inefficient merge key processing, potentially exhausting system resources. This is particularly relevant where applications handle external YAML data and have merge processing enabled by default.",
"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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"references": [
{
"category": "self",
"summary": "Canonical URL",
"url": "https://access.redhat.com/security/cve/CVE-2026-84375"
},
{
"category": "external",
"summary": "RHBZ#2527118",
"url": "https://bugzilla.redhat.com/show_bug.cgi?id=2527118"
},
{
"category": "external",
"summary": "https://www.cve.org/CVERecord?id=CVE-2026-84375",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-84375"
},
{
"category": "external",
"summary": "https://nvd.nist.gov/vuln/detail/CVE-2026-84375",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2026-84375"
},
{
"category": "external",
"summary": "https://github.com/nodeca/js-yaml/commit/3485bc06ff8a0251505f44a00414d90df2466639",
"url": "https://github.com/nodeca/js-yaml/commit/3485bc06ff8a0251505f44a00414d90df2466639"
},
{
"category": "external",
"summary": "https://github.com/nodeca/js-yaml/commit/6a8e05f9a485188ed730ac81e81ae221352ef480",
"url": "https://github.com/nodeca/js-yaml/commit/6a8e05f9a485188ed730ac81e81ae221352ef480"
},
{
"category": "external",
"summary": "https://github.com/nodeca/js-yaml/commit/d90b6612a5a84385bdcb556c44578eac76dc0f6b",
"url": "https://github.com/nodeca/js-yaml/commit/d90b6612a5a84385bdcb556c44578eac76dc0f6b"
},
{
"category": "external",
"summary": "https://github.com/nodeca/js-yaml/pull/797",
"url": "https://github.com/nodeca/js-yaml/pull/797"
},
{
"category": "external",
"summary": "https://github.com/nodeca/js-yaml/releases/tag/3.15.2",
"url": "https://github.com/nodeca/js-yaml/releases/tag/3.15.2"
},
{
"category": "external",
"summary": "https://github.com/nodeca/js-yaml/releases/tag/4.3.2",
"url": "https://github.com/nodeca/js-yaml/releases/tag/4.3.2"
},
{
"category": "external",
"summary": "https://github.com/nodeca/js-yaml/security/advisories/GHSA-2883-xcg3-v3hh",
"url": "https://github.com/nodeca/js-yaml/security/advisories/GHSA-2883-xcg3-v3hh"
}
],
"release_date": "2026-09-01T21:43:13.617000+00:00",
"remediations": [
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"date": "2026-09-17T15:19:00+00:00",
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"title": "js-yaml: js-yaml: Denial of Service vulnerability in YAML parsing"
}
]
}
Loading…
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Experimental. This forecast is provided for visualization only and may change without notice. Do not use it for operational decisions.
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.
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The MITRE ATT&CK techniques below are AI-generated suggestions, inferred from the description of the
vulnerability by the CIRCL/vulnerability-attack-technique-classification-roberta-base
model, served locally by ML-Gateway.
They have not been verified by an analyst and are provided for guidance only.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
Browse all ATT&CK techniques and the vulnerabilities related to each.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
Browse all ATT&CK techniques and the vulnerabilities related to each.
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Related by attack behaviour
Vulnerabilities whose description is nearest to this one in the vector space of the CIRCL/vulnerability-attack-technique-biencoder model. This is a similarity search over the bi-encoder space (plain cosine), not a classification, and it has no measured accuracy.
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