CVE-2026-76646

HIGHPre-NVD 7.57.5—
EchelonGraph scoreHIGH confidence

Score 7.5 from GitHub Security Advisory (severity: HIGH) published 2026-09-16. CISA-ADP (Vulnrichment) CVSS v3.1 baseline 7.5; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: cisa-adp, epss, ghsa
Trending — 3 sources updated this week
7.5EG
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS PROB: 1%CVSS: 7.5Exploit: None knownExposed: 0

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

A remote attacker could cause excessive resource consumption by supplying specially crafted request parameters, potentially resulting in a denial of service condition.

Older unsupported versions may also be affected.

Users are recommended to upgrade to versions 2.3.12, 2.3-next-M9, 3.0.4, 4.0.4, or 4.1.4, which fix this issue.

CVSS v3
7.5
EG Score
7.5(high)
EG Risk
49(Track)
EG Risk 49/100SSVC: 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
Severity75% × 45%
Exploitation1% × 40%
Automatability100% × 15%
Action: Routine — remediate on your standard cadence.
EPSS PROB
1%
EPSS %ILE
45%
KEV
Not listed

Published

September 16, 2026

Last Modified

September 17, 2026

Advisory Details (2)

Auto-updated Sep 17, 2026
No patch confirmed yet.
generic

oss-security - CVE-2026-76646: Apache MyFaces: Denial of Service via Unbounded Request Parsing

http://www.openwall.com/lists/oss-security/2026/09/16/12
generic
https://lists.apache.org/thread/q8zxrdhbmmx8ofgr9s7ymnqo8l2x8oy9

Vendor Advisories for CVE-2026-76646(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 26× in last 7d / 36× 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. 2026-09-25 10:49 UTCGHSA enrichment
  2. 2026-09-24 21:42 UTCEG score recompute
  3. 2026-09-24 21:42 UTCGHSA enrichment
  4. 2026-09-24 14:04 UTCEPSS rescore
  5. 2026-09-24 08:42 UTCGHSA enrichment
  6. 2026-09-23 19:41 UTCEG score recompute
  7. 2026-09-23 19:41 UTCGHSA enrichment
  8. 2026-09-23 17:54 UTCEPSS rescore
  9. 2026-09-23 06:41 UTCGHSA enrichment
  10. 2026-09-22 17:40 UTCEG score recompute
  11. 2026-09-22 17:40 UTCGHSA enrichment
  12. 2026-09-22 16:01 UTCEPSS rescore
  13. 2026-09-22 04:36 UTCEG score recompute
  14. 2026-09-22 04:36 UTCGHSA enrichment
  15. 2026-09-21 21:09 UTCEPSS rescore
  16. 2026-09-21 15:35 UTCGHSA enrichment
  17. 2026-09-21 02:35 UTCEG score recompute
  18. 2026-09-21 02:34 UTCGHSA enrichment
  19. 2026-09-20 20:16 UTCEPSS rescore
  20. 2026-09-20 13:34 UTCGHSA enrichment
  21. 2026-09-20 00:33 UTCEG score recompute
  22. 2026-09-20 00:33 UTCGHSA enrichment
  23. 2026-09-19 11:33 UTCGHSA enrichment
  24. 2026-09-18 22:30 UTCEG score recompute
  25. 2026-09-18 22:30 UTCGHSA enrichment
Show 11 more
  1. 2026-09-18 19:28 UTCEPSS rescore
  2. 2026-09-18 09:30 UTCEG score recompute
  3. 2026-09-18 09:29 UTCGHSA enrichment
  4. 2026-09-17 20:28 UTCEG score recompute
  5. 2026-09-17 20:28 UTCGHSA enrichment
  6. 2026-09-17 19:20 UTCEG score recompute▲ 7.50
  7. 2026-09-17 19:20 UTCGHSA enrichment
  8. 2026-09-17 19:19 UTCMITRE cvelistV5CVSS v3 → 7.5 · severity → HIGH
  9. 2026-09-16 20:25 UTCNVD update
  10. 2026-09-16 19:29 UTCEG score recompute
  11. 2026-09-16 19:29 UTCMITRE cvelistV5first tracked

Related CVEs(same CWE)

Frequently asked(5)

What is CVE-2026-76646?
CVE-2026-76646 is a high vulnerability published on September 16, 2026. A remote attacker could cause excessive resource consumption by supplying specially crafted request parameters, potentially resulting in a denial of service condition. Older unsupported versions may also be affected. Users are recommended to upgrade to versions 2.3.12, 2.3-next-M9, 3.0.4, 4.0.4, or…
When was CVE-2026-76646 disclosed?
CVE-2026-76646 was first published in the National Vulnerability Database on September 16, 2026, with the most recent update on September 17, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-76646 actively exploited?
CVE-2026-76646 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 1% probability of exploitation in the next 30 days, which ranks it in the top 54.6% of all scored CVEs.
What is the CVSS score of CVE-2026-76646?
CVE-2026-76646 has a CVSS v3.1 base score of 7.5 (CISA-ADP / Vulnrichment enrichment; NVD's own analysis pending).
How do I remediate CVE-2026-76646?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-76646, 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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