CVE-2026-64958

HIGHPre-NVD 7.57.5—
EchelonGraph scoreHIGH confidence

Score 7.5 from GitHub Security Advisory (severity: HIGH) published 2026-08-06. 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: 0%CVSS: 7.5Exploit: None knownExposed: 0

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

An incomplete fix for CVE-2026-50645 means that it is still possible to perform a denial of service attack on Apache CXF by sending a message with many attachment headers. Users are recommended to upgrade to versions 4.2.3 or 4.1.8 or 3.6.12, 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%
Exploitation0% × 40%
Automatability100% × 15%
Action: Routine — remediate on your standard cadence.
EPSS PROB
0%
EPSS %ILE
34%
KEV
Not listed

Published

August 6, 2026

Last Modified

August 6, 2026

Advisory Details (1)

Auto-updated Aug 6, 2026
No patch confirmed yet.
generic
https://lists.apache.org/thread/trsnkxc2f21585zlt819blvchgl6oykb

Vendor Advisories for CVE-2026-64958(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 / 66× 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. 2026-08-21 05:07 UTCEG score recompute
  2. 2026-08-21 05:07 UTCGHSA enrichment
  3. 2026-08-20 22:55 UTCEPSS rescore
  4. 2026-08-20 16:18 UTCGHSA enrichment
  5. 2026-08-20 03:29 UTCEG score recompute
  6. 2026-08-20 03:29 UTCGHSA enrichment
  7. 2026-08-19 17:04 UTCEPSS rescore
  8. 2026-08-19 14:39 UTCGHSA enrichment
  9. 2026-08-19 01:38 UTCEG score recompute
  10. 2026-08-19 01:38 UTCGHSA enrichment
  11. 2026-08-18 13:48 UTCEPSS rescore
  12. 2026-08-18 12:48 UTCGHSA enrichment
  13. 2026-08-17 23:59 UTCEG score recompute
  14. 2026-08-17 23:59 UTCGHSA enrichment
  15. 2026-08-17 13:47 UTCEPSS rescore
  16. 2026-08-17 11:09 UTCGHSA enrichment
  17. 2026-08-16 22:20 UTCEG score recompute
  18. 2026-08-16 22:20 UTCGHSA enrichment
  19. 2026-08-16 14:56 UTCEPSS rescore
  20. 2026-08-16 09:31 UTCEG score recompute
  21. 2026-08-16 09:31 UTCGHSA enrichment
  22. 2026-08-15 20:42 UTCGHSA enrichment
  23. 2026-08-15 07:53 UTCEG score recompute
  24. 2026-08-15 07:53 UTCGHSA enrichment
  25. 2026-08-15 01:30 UTCEPSS rescore
Show 41 more
  1. 2026-08-14 19:03 UTCGHSA enrichment
  2. 2026-08-14 06:14 UTCEG score recompute
  3. 2026-08-14 06:14 UTCGHSA enrichment
  4. 2026-08-13 22:00 UTCEPSS rescore
  5. 2026-08-13 17:24 UTCGHSA enrichment
  6. 2026-08-13 04:34 UTCGHSA enrichment
  7. 2026-08-12 15:45 UTCEG score recompute
  8. 2026-08-12 15:45 UTCGHSA enrichment
  9. 2026-08-12 13:51 UTCEPSS rescore
  10. 2026-08-12 02:56 UTCGHSA enrichment
  11. 2026-08-11 14:07 UTCEG score recompute
  12. 2026-08-11 14:07 UTCGHSA enrichment
  13. 2026-08-11 01:17 UTCEG score recompute
  14. 2026-08-11 01:17 UTCGHSA enrichment
  15. 2026-08-11 00:00 UTCEPSS rescore
  16. 2026-08-10 12:28 UTCGHSA enrichment
  17. 2026-08-09 23:37 UTCEG score recompute
  18. 2026-08-09 23:37 UTCGHSA enrichment
  19. 2026-08-09 13:47 UTCEPSS rescore
  20. 2026-08-09 10:48 UTCGHSA enrichment
  21. 2026-08-08 21:59 UTCEG score recompute
  22. 2026-08-08 21:59 UTCGHSA enrichment
  23. 2026-08-08 16:37 UTCEPSS rescore
  24. 2026-08-08 09:09 UTCGHSA enrichment
  25. 2026-08-07 20:20 UTCEG score recompute
  26. 2026-08-07 20:20 UTCGHSA enrichment
  27. 2026-08-07 07:31 UTCGHSA enrichment
  28. 2026-08-06 18:42 UTCEG score recompute
  29. 2026-08-06 18:42 UTCGHSA enrichment
  30. 2026-08-06 16:31 UTCEG score recompute▲ 7.50
  31. 2026-08-06 16:31 UTCGHSA enrichment
  32. 2026-08-06 16:30 UTCNVD updateCVSS v3 → 7.5 · severity → HIGH
  33. 2026-08-06 16:06 UTCEG score recompute▼ 7.50
  34. 2026-08-06 16:06 UTCGHSA enrichment
  35. 2026-08-06 16:05 UTCNVD update
  36. 2026-08-06 15:31 UTCEG score recompute▲ 7.50
  37. 2026-08-06 15:31 UTCGHSA enrichment
  38. 2026-08-06 15:31 UTCMITRE cvelistV5CVSS v3 → 7.5 · severity → HIGH
  39. 2026-08-06 11:22 UTCNVD update
  40. 2026-08-06 11:04 UTCEG score recompute
  41. 2026-08-06 11:03 UTCMITRE cvelistV5first tracked

Related CVEs(same CWE)

Frequently asked(5)

What is CVE-2026-64958?
CVE-2026-64958 is a high vulnerability published on August 6, 2026. An incomplete fix for CVE-2026-50645 means that it is still possible to perform a denial of service attack on Apache CXF by sending a message with many attachment headers. Users are recommended to upgrade to versions 4.2.3 or 4.1.8 or 3.6.12, which fix this issue.
When was CVE-2026-64958 disclosed?
CVE-2026-64958 was first published in the National Vulnerability Database on August 6, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-64958 actively exploited?
CVE-2026-64958 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 65.9% of all scored CVEs.
What is the CVSS score of CVE-2026-64958?
CVE-2026-64958 has a CVSS v3.1 base score of 7.5 (CISA-ADP / Vulnrichment enrichment; NVD's own analysis pending).
How do I remediate CVE-2026-64958?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-64958, 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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