CVE-2026-65905

CRITICALPre-NVD 9.89.8—
EchelonGraph scoreHIGH confidence

Score 9.8 from GitHub Security Advisory (severity: CRITICAL) published 2026-08-26. CISA-ADP (Vulnrichment) CVSS v3.1 baseline 9.8; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: cisa-adp, epss, ghsa
Trending — 3 sources updated this week
9.8EG
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS PROB: 1%CVSS: 9.8Exploit: None knownExposed: 0

A fix is available — apply it.

Authentication Bypass by Capture-replay vulnerability in Apache Tomcat's DIGEST authenticator. If, before windowSize requests have been made, a client makes a DIGEST authenticated request with a nonceCount on the upper boundary of the replay window then that request is replayable once only while the associated nonceCount remains within the replay window.

This issue affects Apache Tomcat: from 11.0.0-M1 through 11.0.24, from 10.1.0-M1 through 10.1.57, from 9.0.0.M1 through 9.0.120.

The following versions were EOL at the time the CVE was created but are known to be affected: from 8.5.0 through 8.5.100, from 7.0.30 through 7.0.109. Other unsupported versions may also be affected.

Users are recommended to upgrade to version 11.0.25, 10.1.58 or 9.0.121, which fix the issue.

CVSS v3
9.8
EG Score
9.8(high)
EG Risk
59(Track)
EG Risk 59/100SSVC: 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
Severity98% × 45%
Exploitation1% × 40%
Automatability100% × 15%
Action: Routine — remediate on your standard cadence.
EPSS PROB
1%
EPSS %ILE
54%
KEV
Not listed

Published

August 25, 2026

Last Modified

August 27, 2026

Advisory Details (2)

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

oss-security - CVE-2026-65905: Apache Tomcat: Limited replay attack possible with DIGEST authentication

http://www.openwall.com/lists/oss-security/2026/08/26/4
generic
https://lists.apache.org/thread/9v114xlpgbzrrbzz5vf9f6r2q4wnxwwj

Vendor Advisories for CVE-2026-65905(3)

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

Patch Availability(2)

Vendor / EcosystemFixed in / PatchReleasedSource
redhattomcat10-main-10.1.59-0.1.hum12026-09-03redhat
redhattomcat11-main-11.0.25-0.1.hum12026-08-18redhat

Patches are aggregated from vendor advisories (Red Hat, Microsoft, Cisco, GitHub) and package ecosystems (OSV, GHSA). Multiple rows for the same upstream release have been deduplicated.

Affected Packages

(11 across 4 ecosystems)
Debian:13(3)
PackageVulnerable rangeFixed inDependents
tomcat1010.1.40-1 ... 10.1.55-1~deb13u1 (10 versions)——
tomcat1111.0.11-1 ... 11.0.6-1 (10 versions)——
tomcat9—9.0.70-2—
Debian:14(3)
PackageVulnerable rangeFixed inDependents
tomcat1010.1.40-1 ... 10.1.55-1~deb13u1 (10 versions)——
tomcat1111.0.11-1 ... 11.0.6-1 (10 versions)——
tomcat9—9.0.70-2—
Maven(3)
PackageVulnerable rangeFixed inDependents
org.apache.tomcat.embed:tomcat-embed-core7.0.100 ... 7.0.99 (56 versions)9.0.121—
org.apache.tomcat:tomcat7.0.100 ... 7.0.99 (52 versions)9.0.121—
org.apache.tomcat:tomcat-catalina7.0.100 ... 7.0.99 (56 versions)9.0.121—
Debian:12(2)
PackageVulnerable rangeFixed inDependents
tomcat1010.1.10-1 ... 10.1.9-1 (36 versions)——
tomcat9—9.0.70-2—

Weakness Classification(1)

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

Data Freshness Timeline

(refreshed 51× in last 7d / 185× 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.

Showing the most recent 100 of 185 total refreshes for this CVE.

  1. 2026-09-19 14:14 UTCVendor advisory
  2. 2026-09-19 10:05 UTCVendor advisory
  3. 2026-09-19 05:31 UTCVendor advisory
  4. 2026-09-19 01:32 UTCVendor advisory
  5. 2026-09-18 21:32 UTCEG score recompute
  6. 2026-09-18 21:32 UTCVendor advisory
  7. 2026-09-18 19:28 UTCEPSS rescore
  8. 2026-09-18 16:53 UTCVendor advisory
  9. 2026-09-18 12:54 UTCVendor advisory
  10. 2026-09-18 08:56 UTCVendor advisory
  11. 2026-09-18 04:58 UTCVendor advisory
  12. 2026-09-18 01:00 UTCVendor advisory
  13. 2026-09-17 21:01 UTCEG score recompute
  14. 2026-09-17 21:01 UTCVendor advisory
  15. 2026-09-17 15:21 UTCVendor advisory
  16. 2026-09-17 11:22 UTCVendor advisory
  17. 2026-09-17 07:23 UTCVendor advisory
  18. 2026-09-17 03:16 UTCVendor advisory
  19. 2026-09-16 23:13 UTCVendor advisory
  20. 2026-09-16 19:14 UTCVendor advisory
  21. 2026-09-16 14:12 UTCEG score recompute
  22. 2026-09-16 14:12 UTCVendor advisory
  23. 2026-09-16 14:08 UTCEPSS rescore
  24. 2026-09-16 09:35 UTCVendor advisory
  25. 2026-09-16 05:37 UTCEG score recompute
Show 75 more
  1. 2026-09-16 05:37 UTCVendor advisory
  2. 2026-09-16 05:15 UTCEPSS rescore
  3. 2026-09-16 01:38 UTCVendor advisory
  4. 2026-09-15 21:40 UTCVendor advisory
  5. 2026-09-15 17:36 UTCVendor advisory
  6. 2026-09-15 13:35 UTCVendor advisory
  7. 2026-09-15 09:37 UTCVendor advisory
  8. 2026-09-15 05:38 UTCEG score recompute
  9. 2026-09-15 05:38 UTCVendor advisory
  10. 2026-09-15 01:13 UTCVendor advisory
  11. 2026-09-14 21:14 UTCVendor advisory
  12. 2026-09-14 17:03 UTCVendor advisory
  13. 2026-09-14 13:03 UTCVendor advisory
  14. 2026-09-14 09:04 UTCVendor advisory
  15. 2026-09-14 05:06 UTCVendor advisory
  16. 2026-09-14 01:08 UTCVendor advisory
  17. 2026-09-13 21:10 UTCVendor advisory
  18. 2026-09-13 17:12 UTCEG score recompute
  19. 2026-09-13 17:12 UTCVendor advisory
  20. 2026-09-13 13:14 UTCVendor advisory
  21. 2026-09-13 09:15 UTCVendor advisory
  22. 2026-09-13 05:17 UTCVendor advisory
  23. 2026-09-13 01:19 UTCVendor advisory
  24. 2026-09-12 21:21 UTCVendor advisory
  25. 2026-09-12 17:22 UTCEG score recompute
  26. 2026-09-12 17:22 UTCVendor advisory
  27. 2026-09-12 13:24 UTCVendor advisory
  28. 2026-09-12 09:25 UTCVendor advisory
  29. 2026-09-12 05:24 UTCVendor advisory
  30. 2026-09-12 01:26 UTCVendor advisory
  31. 2026-09-11 21:28 UTCVendor advisory
  32. 2026-09-11 17:30 UTCEG score recompute
  33. 2026-09-11 17:30 UTCVendor advisory
  34. 2026-09-11 14:53 UTCEPSS rescore
  35. 2026-09-11 12:57 UTCEG score recompute
  36. 2026-09-11 12:57 UTCVendor advisory
  37. 2026-09-11 09:37 UTCEPSS rescore
  38. 2026-09-11 08:23 UTCVendor advisory
  39. 2026-09-11 04:23 UTCVendor advisory
  40. 2026-09-11 00:25 UTCVendor advisory
  41. 2026-09-10 20:27 UTCVendor advisory
  42. 2026-09-10 16:29 UTCVendor advisory
  43. 2026-09-10 12:07 UTCEG score recompute
  44. 2026-09-10 12:07 UTCVendor advisory
  45. 2026-09-10 08:09 UTCVendor advisory
  46. 2026-09-10 04:10 UTCVendor advisory
  47. 2026-09-10 00:12 UTCVendor advisory
  48. 2026-09-09 17:01 UTCVendor advisory
  49. 2026-09-09 12:51 UTCVendor advisory
  50. 2026-09-09 08:53 UTCVendor advisory
  51. 2026-09-09 04:54 UTCVendor advisory
  52. 2026-09-09 00:56 UTCEG score recompute
  53. 2026-09-09 00:56 UTCVendor advisory
  54. 2026-09-08 22:01 UTCEPSS rescore
  55. 2026-09-08 11:46 UTCVendor advisory
  56. 2026-09-08 07:09 UTCVendor advisory
  57. 2026-09-08 03:09 UTCVendor advisory
  58. 2026-09-07 23:11 UTCVendor advisory
  59. 2026-09-07 19:12 UTCEG score recompute
  60. 2026-09-07 19:12 UTCVendor advisory
  61. 2026-09-07 16:01 UTCEPSS rescore
  62. 2026-09-07 15:14 UTCVendor advisory
  63. 2026-09-07 08:52 UTCVendor advisory
  64. 2026-09-07 04:51 UTCVendor advisory
  65. 2026-09-07 00:52 UTCVendor advisory
  66. 2026-09-06 20:48 UTCVendor advisory
  67. 2026-09-06 16:50 UTCEG score recompute
  68. 2026-09-06 16:50 UTCVendor advisory
  69. 2026-09-06 13:47 UTCEPSS rescore
  70. 2026-09-06 12:51 UTCVendor advisory
  71. 2026-09-06 08:53 UTCVendor advisory
  72. 2026-09-06 04:55 UTCVendor advisory
  73. 2026-09-06 00:57 UTCVendor advisory
  74. 2026-09-05 20:55 UTCVendor advisory
  75. 2026-09-05 16:57 UTCEG score recompute

Related CVEs(same vendor + same CWE)

Frequently asked(5)

What is CVE-2026-65905?
CVE-2026-65905 is a critical vulnerability published on August 25, 2026. Authentication Bypass by Capture-replay vulnerability in Apache Tomcat's DIGEST authenticator. If, before windowSize requests have been made, a client makes a DIGEST authenticated request with a nonceCount on the upper boundary of the replay window then that request is replayable once only while…
When was CVE-2026-65905 disclosed?
CVE-2026-65905 was first published in the National Vulnerability Database on August 25, 2026, with the most recent update on August 27, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-65905 actively exploited?
CVE-2026-65905 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 46.0% of all scored CVEs.
What is the CVSS score of CVE-2026-65905?
CVE-2026-65905 has a CVSS v3.1 base score of 9.8 (CISA-ADP / Vulnrichment enrichment; NVD's own analysis pending).
How do I remediate CVE-2026-65905?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-65905, 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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