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  4. CVE 2026 12704 saml assertion replay via skipped inresponseto
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Back to active CVEs
Medium · CVSS 6.8CVE-2026-12704

SAML assertion replay via skipped InResponseTo validationCVE-2026-12704

Answer in brief

CVE-2026-12704 records a Medium severity (CVSS 6.8) vulnerability in SAML assertion replay via skipped InResponseTo validation. The current sources do not mark it as known exploited. The current feed maps Grafana/Grafana Enterprise (generic), Grafana/Grafana Enterprise (generic). Check affected ranges and fixed versions before updating.

Analysis pending evidence review

HOL Guard separates source facts from reviewed analysis. See the methodology.

Published Sep 2, 2026Updated Sep 3, 2026Source checked Oct 18, 2026First seen by HOL Sep 2, 2026Material review Sep 3, 2026
Upstream Advisory

Key facts

Risk
Medium · CVSS 6.8
Exploitation
Not marked as known exploited
Affected software
2 mapped packages or products
Fix availability
Not reported

Why this deserves its current priority

CVSS is 6.8. The current sources do not mark it as known exploited. Treat this as a source-backed prioritization signal, not a statement about your environment.

Analysis status

Analysis pending evidence review

Factual feed record only; HOL analysis is not approved for indexing. Read the methodology.

Affected scope and exposure questions

The current feed maps Grafana/Grafana Enterprise (generic), Grafana/Grafana Enterprise (generic). Check affected ranges and fixed versions before updating.

Mapped affected packages and fixed versions
PackageAffected rangeFixed version
Grafana/Grafana Enterprisegeneric11.6.0 || 12.2.0 || 12.3.0 || 12.4.0 || 13.0.0 || 13.1.0 || 13.2.0Not reported
Grafana/Grafana Enterprisegeneric>=11.6.0 <=11.6.17 || >=12.2.0 <=12.2.11 || >=12.3.0 <=12.3.11 || >=12.4.0 <=12.4.10 || >=13.0.0 <=13.0.7 || >=13.1.0 <=13.1.4 || >=13.2.0 <=13.2.0Not reported

Recommended response

  1. 1Check inventory. Check lockfiles and deployed manifests for Grafana/Grafana Enterprise, Grafana/Grafana Enterprise.
  2. 2Review the reported fix. Monitor this advisory for an available fix and review any installs of the affected package.

Evidence timeline and material changes

  1. Published upstream

    Sep 2, 2026

    Evidence: source:cvelist:source_dates:source-dates:record

  2. Source modified

    Sep 3, 2026

    Evidence: source:cvelist:source_dates:source-dates:record

  3. First seen by HOL

    Sep 2, 2026

Sources and claim methodology

  • Source referencegrafana.com
Upstream source description

When SAML IdP-initiated login is enabled in Grafana Enterprise, the SAML library skips validation of the InResponseTo field on all SAML responses, including SP-initiated logins. This removes anti-replay protection, allowing an attacker who obtains a valid signed SAML assertion to replay it and gain a session as the victim user. Only instances with the allow_idp_initiated SAML setting enabled are affected; this setting is off by default and Grafana OSS is not affected.

Quoted source text, attributed separately from HOL analysis.

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Record context

Vulnerability class
Vulnerability
EPSS
Not reported
CWE IDs
CWE-294
Source
CVE List V5
Source checked
Oct 18, 2026
References
1 linked source
Open source record