CVE-2026-53434

CRITICALPre-NVD 9.19.1—
EchelonGraph scoreMEDIUM confidence

Score 9.1 from GitHub Security Advisory (severity: CRITICAL) published 2026-06-29. CISA-ADP (Vulnrichment) CVSS v3.1 baseline 9.1; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: cisa-adp, epss, ghsa
9.1EG
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: 9.1Exploit: None knownExposed services: Not assessed

A fix is available — apply it.

Detection of Error Condition Without Action vulnerability in Apache Tomcat when configuring CRLs for a FFM based connector.

This issue affects Apache Tomcat: from 11.0.0-M1 through 11.0.22, from 10.1.0-M7 through 10.1.55, from 9.0.83 through 9.0.118.

Users are recommended to upgrade to version 11.0.23, 10.1.56 or 9.0.119, which fixes the issue.

CVSS v3
9.1
EG Score
9.1CRITICALmedium confidence
EG Risk
46
EG Risk 46/100

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
Severity91% × 45%
Exploitation1% × 40%
Automatability30% × 15%
EPSS PROB
0.6%
EPSS %ILE
46th
KEV
Not listed

Published

June 29, 2026

Last Modified

July 2, 2026

Advisory Details (2)

Auto-updated Sep 16, 2026
Patch available.
generic

oss-security - CVE-2026-53434: Apache Tomcat: Invalid CRL configuration doesn't trigger failure for FFM Connector

http://www.openwall.com/lists/oss-security/2026/06/29/22
generic
https://lists.apache.org/thread/x510lbq0sfrd1qyo7q3r1mpllgpdcosk

Vendor Advisories for CVE-2026-53434(13)

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

Patch Availability(4)

Vendor / EcosystemFix (by version range) / PatchReleasedSource
redhattomcat-coyote-ffm2026-08-05redhat
redhatjws7-tomcat-0:11.0.21-6.redhat_00005.1.el9jws2026-08-05redhat
redhattomcat11-main-11.0.23-0.1.hum12026-06-29redhat
redhattomcat10-main-10.1.56-1.hum12026-06-24redhat

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

(9 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 (9 versions)
  • every version up to 11.0.24-1: fixed in 11.0.24-1
—
tomcat9—
  • every version up to 9.0.70-2: fixed in 9.0.70-2
—
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
—
Debian:11(1)
PackageVulnerable rangeFix by version rangeDependents
tomcat99.0.43-1 ... 9.0.70-1 (28 versions)
  • 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.

Data Freshness Timeline

(refreshed 7× in last 7d / 48× 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 700 total refreshes for this CVE.

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

Related CVEs(same product + same vendor + same CWE)

Frequently asked(5)

What is CVE-2026-53434?
CVE-2026-53434 is a critical vulnerability published on June 29, 2026. Detection of Error Condition Without Action vulnerability in Apache Tomcat when configuring CRLs for a FFM based connector. This issue affects Apache Tomcat: from 11.0.0-M1 through 11.0.22, from 10.1.0-M7 through 10.1.55, from 9.0.83 through 9.0.118. Users are recommended to upgrade to version…
When was CVE-2026-53434 disclosed?
CVE-2026-53434 was first published on June 29, 2026, with the most recent update on July 2, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-53434 actively exploited?
CVE-2026-53434 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 0.6% probability of exploitation in the next 30 days (46th percentile of EPSS-scored CVEs).
What is the CVSS score of CVE-2026-53434?
CVE-2026-53434 has a CVSS v3.1 base score of 9.1 (CISA-ADP / Vulnrichment enrichment; NVD's own analysis pending).
How do I remediate CVE-2026-53434?
A fix for CVE-2026-53434 is available: update to the fixed version the vendor names in its advisory. The vendor advisories EchelonGraph has for CVE-2026-53434 are linked in the Vendor Advisories panel on this page.

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