CVE-2026-65905

CRITICALPre-NVD 9.89.8—
EchelonGraph scoreMEDIUM 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 — Patch released 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: 0.6%CVSS: 9.8Exploit: None knownExposed services: Not assessed

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
9.8CRITICALmedium confidence
EG Risk
59
EG Risk 59/100CISA SSVC

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%
CISA SSVC: Track at low or medium mission impact; Attend at high (mission-essential systems).
Action: A fix is available. Apply it within your standard update timelines at low or medium mission impact and sooner than that at high.
EPSS PROB
0.6%
EPSS %ILE
45th
KEV
Not listed

CISA SSVCTrack at low or medium mission impact; Attend at high (mission-essential systems).

A fix is available. Apply it within your standard update timelines at low or medium mission impact and sooner than that at high.

Exploitation none (CISA Vulnrichment) · Automatable yes (CISA Vulnrichment) · Technical impact total (CISA Vulnrichment). Mission impact is CISA's Mission & Well-being decision point, and only you can judge it: high means the affected system is essential to your organisation's mission, or its compromise could cause irreversible harm to people. CISA's decision table

Published

August 25, 2026

Last Modified

August 27, 2026

Advisory Details (2)

Auto-updated Oct 8, 2026
Patch available.
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

Pony Mail

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(5)

Vendor / EcosystemFix (by version range) / PatchReleasedSource
redhattomcat2026-10-07redhat
redhatjws7-tomcat-0:11.0.21-7.redhat_00006.1.el9jws2026-10-07redhat
redhatjws6-tomcat-0:10.1.49-16.redhat_00016.1.el9jws2026-10-01redhat
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 rangeFix by version rangeDependents
tomcat1010.1.40-1 ... 10.1.60-1 (11 versions)
  • every version on: no fix on record
—
tomcat1111.0.11-1 ... 11.0.6-1 (10 versions)
  • every version on: no fix on record
—
tomcat9—
  • every version up to 9.0.70-2: fixed in 9.0.70-2
—
Debian:14(3)
PackageVulnerable rangeFix by version rangeDependents
tomcat1010.1.40-1 ... 10.1.55-1~deb13u1 (10 versions)
  • every version up to 10.1.60-1: fixed in 10.1.60-1
—
tomcat1111.0.11-1 ... 11.0.6-1 (10 versions)
  • every version on: no fix on record
—
tomcat9—
  • every version up to 9.0.70-2: fixed in 9.0.70-2
—
Maven(3)
PackageVulnerable rangeFix by version rangeDependents
org.apache.tomcat.embed:tomcat-embed-core7.0.100 ... 7.0.99 (56 versions)
  • 11.0.0-M1 up to 11.0.25: fixed in 11.0.25
  • 10.1.0-M1 up to 10.1.58: fixed in 10.1.58
  • 9.0.0.M1 up to 9.0.121: fixed in 9.0.121
  • 8.5.0 through 8.5.100: no fix on record
  • 7.0.30 through 7.0.109: no fix on record
—
org.apache.tomcat:tomcat7.0.100 ... 7.0.99 (52 versions)
  • 11.0.0-M1 up to 11.0.25: fixed in 11.0.25
  • 10.1.0-M1 up to 10.1.58: fixed in 10.1.58
  • 9.0.0.M1 up to 9.0.121: fixed in 9.0.121
  • 8.5.0 through 8.5.100: no fix on record
  • 7.0.30 through 7.0.109: no fix on record
—
org.apache.tomcat:tomcat-catalina7.0.100 ... 7.0.99 (56 versions)
  • 11.0.0-M1 up to 11.0.25: fixed in 11.0.25
  • 10.1.0-M1 up to 10.1.58: fixed in 10.1.58
  • 9.0.0.M1 up to 9.0.121: fixed in 9.0.121
  • 8.5.0 through 8.5.100: no fix on record
  • 7.0.30 through 7.0.109: no fix on record
—
Debian:12(2)
PackageVulnerable rangeFix by version rangeDependents
tomcat1010.1.10-1 ... 10.1.9-1 (37 versions)
  • every version on: no fix on record
—
tomcat9—
  • every version up to 9.0.70-2: fixed in 9.0.70-2
—

Weakness Classification(1)

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

Additional Vendor Advisories

(4)

Vendors that published advisories for this CVE beyond the curated set above. Broader coverage but minimal per-row detail — click through for the original advisory.

Data Freshness Timeline

(refreshed 38× in last 7d / 193× 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 309 total refreshes for this CVE.

  1. 2026-10-09 20:07 UTCEPSS rescore
  2. 2026-10-09 07:52 UTCVendor advisory
  3. 2026-10-09 03:42 UTCEG score recompute
  4. 2026-10-09 03:42 UTCVendor advisory
  5. 2026-10-08 17:13 UTCEPSS rescore
  6. 2026-10-08 06:15 UTCVendor advisory
  7. 2026-10-08 02:17 UTCEG score recompute
  8. 2026-10-08 02:17 UTCVendor advisory
  9. 2026-10-07 23:48 UTCEPSS rescore
  10. 2026-10-07 09:08 UTCVendor advisory
  11. 2026-10-07 05:07 UTCVendor advisory
  12. 2026-10-07 01:09 UTCVendor advisory
  13. 2026-10-06 20:45 UTCVendor advisory
  14. 2026-10-06 16:01 UTCEG score recompute
  15. 2026-10-06 16:01 UTCVendor advisory
  16. 2026-10-06 15:18 UTCEPSS rescore
  17. 2026-10-06 11:54 UTCVendor advisory
  18. 2026-10-06 07:39 UTCVendor advisory
  19. 2026-10-06 01:51 UTCVendor advisory
  20. 2026-10-05 20:59 UTCEG score recompute
  21. 2026-10-05 20:59 UTCVendor advisory
  22. 2026-10-05 17:43 UTCEPSS rescore
  23. 2026-10-05 16:58 UTCVendor advisory
  24. 2026-10-05 11:43 UTCVendor advisory
  25. 2026-10-05 07:44 UTCVendor advisory
Show 75 more
  1. 2026-10-05 03:46 UTCVendor advisory
  2. 2026-10-04 23:43 UTCEG score recompute
  3. 2026-10-04 23:43 UTCVendor advisory
  4. 2026-10-04 23:22 UTCEPSS rescore
  5. 2026-10-04 19:44 UTCVendor advisory
  6. 2026-10-04 14:39 UTCVendor advisory
  7. 2026-10-04 10:05 UTCVendor advisory
  8. 2026-10-04 06:06 UTCVendor advisory
  9. 2026-10-04 02:08 UTCVendor advisory
  10. 2026-10-03 20:14 UTCVendor advisory
  11. 2026-10-03 16:17 UTCEG score recompute
  12. 2026-10-03 16:17 UTCVendor advisory
  13. 2026-10-03 14:26 UTCEPSS rescore
  14. 2026-10-03 04:33 UTCVendor advisory
  15. 2026-10-03 00:34 UTCVendor advisory
  16. 2026-10-02 18:53 UTCEG score recompute
  17. 2026-10-02 18:53 UTCVendor advisory
  18. 2026-10-02 17:56 UTCEPSS rescore
  19. 2026-10-02 14:48 UTCVendor advisory
  20. 2026-10-02 10:23 UTCVendor advisory
  21. 2026-10-02 06:24 UTCVendor advisory
  22. 2026-10-02 01:16 UTCVendor advisory
  23. 2026-10-01 19:59 UTCEG score recompute
  24. 2026-10-01 19:59 UTCVendor advisory
  25. 2026-10-01 19:50 UTCEPSS rescore
  26. 2026-10-01 13:30 UTCVendor advisory
  27. 2026-10-01 09:32 UTCVendor advisory
  28. 2026-10-01 05:34 UTCVendor advisory
  29. 2026-10-01 01:06 UTCVendor advisory
  30. 2026-09-30 20:09 UTCEG score recompute
  31. 2026-09-30 20:09 UTCVendor advisory
  32. 2026-09-30 15:03 UTCEPSS rescore
  33. 2026-09-30 11:36 UTCVendor advisory
  34. 2026-09-30 06:22 UTCEG score recompute
  35. 2026-09-30 06:22 UTCVendor advisory
  36. 2026-09-29 12:40 UTCVendor advisory
  37. 2026-09-29 05:28 UTCVendor advisory
  38. 2026-09-29 01:31 UTCEG score recompute
  39. 2026-09-29 01:31 UTCVendor advisory
  40. 2026-09-28 21:24 UTCVendor advisory
  41. 2026-09-28 14:22 UTCEG score recompute
  42. 2026-09-28 14:22 UTCVendor advisory
  43. 2026-09-28 13:51 UTCEPSS rescore
  44. 2026-09-28 10:24 UTCVendor advisory
  45. 2026-09-28 06:26 UTCVendor advisory
  46. 2026-09-28 02:28 UTCVendor advisory
  47. 2026-09-27 22:30 UTCVendor advisory
  48. 2026-09-27 18:32 UTCVendor advisory
  49. 2026-09-27 14:30 UTCEG score recompute
  50. 2026-09-27 14:30 UTCVendor advisory
  51. 2026-09-27 10:12 UTCVendor advisory
  52. 2026-09-27 06:14 UTCVendor advisory
  53. 2026-09-27 02:15 UTCVendor advisory
  54. 2026-09-26 21:35 UTCEG score recompute
  55. 2026-09-26 21:35 UTCVendor advisory
  56. 2026-09-26 15:59 UTCEPSS rescore
  57. 2026-09-25 16:41 UTCVendor advisory
  58. 2026-09-25 12:13 UTCVendor advisory
  59. 2026-09-25 08:15 UTCVendor advisory
  60. 2026-09-25 04:16 UTCEG score recompute
  61. 2026-09-25 04:16 UTCVendor advisory
  62. 2026-09-25 00:18 UTCVendor advisory
  63. 2026-09-24 19:51 UTCVendor advisory
  64. 2026-09-24 15:53 UTCEG score recompute
  65. 2026-09-24 15:53 UTCVendor advisory
  66. 2026-09-24 11:55 UTCVendor advisory
  67. 2026-09-24 07:56 UTCVendor advisory
  68. 2026-09-24 03:56 UTCVendor advisory
  69. 2026-09-23 23:55 UTCVendor advisory
  70. 2026-09-23 19:56 UTCEG score recompute
  71. 2026-09-23 19:56 UTCVendor advisory
  72. 2026-09-23 17:54 UTCEPSS rescore
  73. 2026-09-23 14:46 UTCVendor advisory
  74. 2026-09-23 10:48 UTCVendor advisory
  75. 2026-09-23 06:47 UTCVendor advisory

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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 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 0.6% probability of exploitation in the next 30 days (45th percentile of EPSS-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?
A fix for CVE-2026-65905 is available: update to the fixed version the vendor names in its advisory. The vendor advisories EchelonGraph has for CVE-2026-65905 are linked in the Vendor Advisories panel on this page.

Dependency Blast Radius

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