CVE-2026-12704

MEDIUMPre-NVD 6.86.8—
EchelonGraph scoreHIGH confidence

Score 6.8 from GitHub Security Advisory published 2026-09-02. a secondary CVSS source baseline 6.8; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, secondary
Trending — 3 sources updated this week
6.8EG
EchelonGraph verdictMonitorLow exploitation likelihood right now — keep watching.
  • Lower severity and no public exploit yet
CISA-KEV: Not listedEPSS PROB: 0%CVSS: 6.8Exploit: None knownExposed: 0

No vendor fix yet — apply a workaround or compensating control (WAF / firewall / segmentation) and watch for a patch.

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.

CVSS v3
6.8
EG Score
6.8(high)
EG Risk
31(Track)
EG Risk 31/100SSVC: Track

EG Risk is EchelonGraph's 0–100 priority score: it fuses intrinsic severity with real-world exploitation and automatability so you can rank equal-severity CVEs and fix the most dangerous first. Higher = act sooner. Distinct from the 0–10 EG Score (severity).

How it’s computed
Severity68% × 45%
Exploitation0% × 40%
Automatability0% × 15%
Action: Routine — remediate on your standard cadence.
EPSS PROB
0%
EPSS %ILE
20%
KEV
Not listed

Published

September 2, 2026

Last Modified

September 3, 2026

References (1)

Vendor Advisories for CVE-2026-12704(1)

These vendors published their own advisory mentioning this CVE — often with vendor-specific remediation steps + affected product lists not in NVD.

Weakness Classification(1)

MITRE Common Weakness Enumeration — the root-cause categories this CVE belongs to.

Data Freshness Timeline

(refreshed 19× in last 7d / 51× in last 30d)

Each row is a source pipeline that fetched or updated this CVE on that date, with what changed. For example, "NVD update" means NVD published or revised its analysis for this CVE; "MITRE cvelistV5" means we ingested or refreshed it from the CNA feed. Most recent first.

  1. 2026-09-19 08:06 UTCEG score recompute
  2. 2026-09-19 08:06 UTCGHSA enrichment
  3. 2026-09-18 19:27 UTCEPSS rescore
  4. 2026-09-18 10:05 UTCEG score recompute
  5. 2026-09-18 10:05 UTCGHSA enrichment
  6. 2026-09-17 12:03 UTCEG score recompute
  7. 2026-09-17 12:03 UTCGHSA enrichment
  8. 2026-09-16 14:01 UTCEG score recompute
  9. 2026-09-16 14:01 UTCGHSA enrichment
  10. 2026-09-16 05:14 UTCEPSS rescore
  11. 2026-09-15 15:21 UTCEG score recompute
  12. 2026-09-15 15:21 UTCGHSA enrichment
  13. 2026-09-14 17:20 UTCGHSA enrichment
  14. 2026-09-13 19:19 UTCEG score recompute
  15. 2026-09-13 19:19 UTCGHSA enrichment
  16. 2026-09-13 16:46 UTCEPSS rescore
  17. 2026-09-12 21:18 UTCEG score recompute
  18. 2026-09-12 21:18 UTCGHSA enrichment
  19. 2026-09-12 15:00 UTCEPSS rescore
  20. 2026-09-11 23:16 UTCEG score recompute
  21. 2026-09-11 23:16 UTCGHSA enrichment
  22. 2026-09-11 14:52 UTCEPSS rescore
  23. 2026-09-11 01:13 UTCEG score recompute
  24. 2026-09-11 01:13 UTCGHSA enrichment
  25. 2026-09-10 09:34 UTCEPSS rescore
Show 26 more
  1. 2026-09-10 03:12 UTCGHSA enrichment
  2. 2026-09-09 05:10 UTCEG score recompute
  3. 2026-09-09 05:10 UTCGHSA enrichment
  4. 2026-09-08 22:00 UTCEPSS rescore
  5. 2026-09-08 07:09 UTCEG score recompute
  6. 2026-09-08 07:08 UTCGHSA enrichment
  7. 2026-09-07 16:01 UTCEPSS rescore
  8. 2026-09-07 09:04 UTCEG score recompute
  9. 2026-09-07 09:04 UTCGHSA enrichment
  10. 2026-09-06 13:47 UTCEPSS rescore
  11. 2026-09-06 10:59 UTCEG score recompute
  12. 2026-09-06 10:59 UTCGHSA enrichment
  13. 2026-09-05 12:58 UTCGHSA enrichment
  14. 2026-09-04 14:56 UTCEG score recompute
  15. 2026-09-04 14:56 UTCGHSA enrichment
  16. 2026-09-04 05:06 UTCEPSS rescore
  17. 2026-09-03 16:55 UTCEG score recompute
  18. 2026-09-03 16:55 UTCGHSA enrichment
  19. 2026-09-03 08:35 UTCEG score recompute
  20. 2026-09-03 08:35 UTCGHSA enrichment
  21. 2026-09-02 19:32 UTCEG score recompute
  22. 2026-09-02 19:31 UTCGHSA enrichment
  23. 2026-09-02 18:36 UTCEG score recompute
  24. 2026-09-02 18:36 UTCGHSA enrichment
  25. 2026-09-02 16:18 UTCEG score recompute
  26. 2026-09-02 16:16 UTCMITRE cvelistV5first tracked

Frequently asked(5)

What is CVE-2026-12704?
CVE-2026-12704 is a medium vulnerability published on September 2, 2026. 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…
When was CVE-2026-12704 disclosed?
CVE-2026-12704 was first published in the National Vulnerability Database on September 2, 2026, with the most recent update on September 3, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-12704 actively exploited?
CVE-2026-12704 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 0% probability of exploitation in the next 30 days, which ranks it in the top 80.0% of all scored CVEs.
What is the CVSS score of CVE-2026-12704?
CVE-2026-12704 has a CVSS v3 base score of 6.8 (NVD).
How do I remediate CVE-2026-12704?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-12704, EchelonGraph cross-links them in the Vendor Advisories panel below — those typically contain the canonical remediation steps, fixed version numbers, and any vendor-specific mitigations.

Dependency Blast Radius

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