Vulnerability-Lookup

CVE-2026-103314 (GCVE-0-2026-103314)

Vulnerability from cvelistv5 – Published: 2026-10-19 12:14 – Updated: 2026-10-31 10:00

Title

Stackrox: stackrox: saml response replay allows multiple central authentication tokens

Summary

A flaw was found in Red Hat Advanced Cluster Security for Kubernetes (RHACS). The Central SAML authentication ACS endpoint does not retain used SAML assertion or response identifiers to prevent replay. An attacker who obtains a valid, unexpired signed SAML response can submit it multiple times and receive distinct Central authentication tokens for the mapped identity.

Severity

7.4 (High)


                        
                          CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N

SSVC

Exploitation: none Automatable: no Technical Impact: total

CISA Coordinator · CISA-ADP (v2.0.3)

Decision recorded 2026-10-19 15:06 UTC

CWE

CWE-294 - Authentication Bypass by Capture-replay

Assigner

redhat CNA under the redhat root

CNA scorecard B 82/100 over 1082 records in the last 180 days details

References

4 references

URL	Tags
https://access.redhat.com/errata/RHSA-2026:85932	vendor-advisoryx_refsource_REDHAT
https://access.redhat.com/errata/RHSA-2026:92342	vendor-advisoryx_refsource_REDHAT
https://access.redhat.com/security/cve/CVE-2026-103314	vdb-entryx_refsource_REDHAT
https://bugzilla.redhat.com/show_bug.cgi?id=2543879	issue-trackingx_refsource_REDHAT

Impacted products

2 products

Vendor	Product	Version	CPE status
Red Hat	Red Hat Advanced Cluster Security for Kubernetes 4.10	Unaffected: 1793184257 , < * (rpm) cpe:/a:redhat:advanced_cluster_security:4.10::el8
Red Hat	Red Hat Advanced Cluster Security for Kubernetes 4.11	Unaffected: 1792492060 , < * (rpm) cpe:/a:redhat:advanced_cluster_security:4.11::el9

Date Public

2026-10-19 10:00

Credits

Red Hat would like to thank Austin Chu (U.C. Berkeley), Corban Villa (U.C. Berkeley), and Sohee Kim (U.C. Berkeley) for reporting this issue.

Show details on NVD website

JSON

To clipboard

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FKIE_CVE-2026-103314

Vulnerability from fkie_nvd - Published: 2026-10-19 13:16 - Updated: 2026-10-31 10:16

Severity

7.4 (High) - CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N

Summary

References

	URL	Tags
	secalert@redhat.com	https://access.redhat.com/errata/RHSA-2026:85932
	secalert@redhat.com	https://access.redhat.com/errata/RHSA-2026:92342
	secalert@redhat.com	https://access.redhat.com/security/cve/CVE-2026-103314
	secalert@redhat.com	https://bugzilla.redhat.com/show_bug.cgi?id=2543879

Impacted products

	Vendor	Product	Version

JSON

To clipboard

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          "collectionURL": "https://catalog.redhat.com/software/containers/",
          "cpes": [
            "cpe:/a:redhat:advanced_cluster_security:4.11::el9"
          ],
          "defaultStatus": "affected",
          "packageName": "advanced-cluster-security/rhacs-main-rhel9",
          "product": "Red Hat Advanced Cluster Security for Kubernetes 4.11",
          "vendor": "Red Hat",
          "versions": [
            {
              "lessThan": "*",
              "status": "unaffected",
              "version": "1792492060",
              "versionType": "rpm"
            }
          ]
        }
      ],
      "source": "secalert@redhat.com"
    }
  ],
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "A flaw was found in Red Hat Advanced Cluster Security for Kubernetes (RHACS). The Central SAML authentication ACS endpoint does not retain used SAML assertion or response identifiers to prevent replay. An attacker who obtains a valid, unexpired signed SAML response can submit it multiple times and receive distinct Central authentication tokens for the mapped identity."
    }
  ],
  "id": "CVE-2026-103314",
  "lastModified": "2026-10-31T10:16:30.173",
  "metrics": {
    "cvssMetricV31": [
      {
        "cvssData": {
          "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"
        },
        "exploitabilityScore": 2.2,
        "impactScore": 5.2,
        "source": "secalert@redhat.com",
        "type": "Secondary"
      }
    ],
    "ssvcV203": [
      {
        "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
        "ssvcData": {
          "id": "CVE-2026-103314",
          "options": [
            {
              "exploitation": "none"
            },
            {
              "automatable": "no"
            },
            {
              "technicalImpact": "total"
            }
          ],
          "role": "CISA Coordinator",
          "timestamp": "2026-10-19T15:06:14.722673Z",
          "version": "2.0.3"
        }
      }
    ]
  },
  "published": "2026-10-19T13:16:53.617",
  "references": [
    {
      "source": "secalert@redhat.com",
      "url": "https://access.redhat.com/errata/RHSA-2026:85932"
    },
    {
      "source": "secalert@redhat.com",
      "url": "https://access.redhat.com/errata/RHSA-2026:92342"
    },
    {
      "source": "secalert@redhat.com",
      "url": "https://access.redhat.com/security/cve/CVE-2026-103314"
    },
    {
      "source": "secalert@redhat.com",
      "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2543879"
    }
  ],
  "sourceIdentifier": "secalert@redhat.com",
  "vulnStatus": "Awaiting Analysis",
  "weaknesses": [
    {
      "description": [
        {
          "lang": "en",
          "value": "CWE-294"
        }
      ],
      "source": "secalert@redhat.com",
      "type": "Secondary"
    }
  ]
}

GHSA-XXR5-H8GC-Q63J

Vulnerability from github – Published: 2026-10-19 15:32 – Updated: 2026-10-29 21:31

Details

Severity

7.4 (High)


                  
                    CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N

Show details on source website

JSON

To clipboard

{
  "affected": [],
  "aliases": [
    "CVE-2026-103314"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-294"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2026-10-19T13:16:53Z",
    "severity": "HIGH"
  },
  "details": "A flaw was found in Red Hat Advanced Cluster Security for Kubernetes (RHACS). The Central SAML authentication ACS endpoint does not retain used SAML assertion or response identifiers to prevent replay. An attacker who obtains a valid, unexpired signed SAML response can submit it multiple times and receive distinct Central authentication tokens for the mapped identity.",
  "id": "GHSA-xxr5-h8gc-q63j",
  "modified": "2026-10-29T21:31:11Z",
  "published": "2026-10-19T15:32:37Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-103314"
    },
    {
      "type": "WEB",
      "url": "https://access.redhat.com/errata/RHSA-2026:85932"
    },
    {
      "type": "WEB",
      "url": "https://access.redhat.com/errata/RHSA-2026:92342"
    },
    {
      "type": "WEB",
      "url": "https://access.redhat.com/security/cve/CVE-2026-103314"
    },
    {
      "type": "WEB",
      "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2543879"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N",
      "type": "CVSS_V3"
    }
  ]
}

RHSA-2026:85932

Vulnerability from csaf_redhat - Published: 2026-10-20 12:02 - Updated: 2026-10-31 10:02

Summary

Red Hat Security Advisory: RHACS 4.11.6 security and bug fix update

Severity

Important

Scope

1 vulnerability in this advisory, including CVE-2026-103314.

CVE-2026-103314

7.4 (High)


                
                  CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N

Fixed: 4 products Known not affected: 43 products

https://access.redhat.com/errata/RHSA-2026:85932

Open the full advisory

RHSA-2026:92342

Vulnerability from csaf_redhat - Published: 2026-10-29 09:47 - Updated: 2026-10-31 23:26

Summary

Red Hat Security Advisory: RHACS 4.10.11 security and bug fix update

Severity

Critical

Scope

2 vulnerabilities in this advisory, including CVE-2026-103314.

CVE-2026-103314

7.4 (High)


                
                  CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N

Fixed: 4 products Known not affected: 43 products

https://access.redhat.com/errata/RHSA-2026:92342

Open the full advisory

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.

Vulnerability timeline

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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.

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.

Action not permitted

CVE-2026-103314 (GCVE-0-2026-103314)

FKIE_CVE-2026-103314

GHSA-XXR5-H8GC-Q63J

RHSA-2026:85932

RHSA-2026:92342

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Vulnerability timeline

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