CVE-2026-53434

CRITICALPre-NVD 9.19.1—
EchelonGraph scoreHIGH 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
Trending — 4 sources updated this week
9.1
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS: 0%CVSS: 9.1Exploit: NoneExposed: 0

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
9.1(high)
EG Risk
46(Track)
EG Risk 46/100SSVC: 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
Severity91% × 45%
Exploitation0% × 40%
Automatability30% × 15%
Action: Routine — remediate on your standard cadence.
EPSS
29.3%
KEV
Not listed

Published

June 29, 2026

Last Modified

July 2, 2026

Advisory Details (2)

Auto-updated Jun 30, 2026
No patch confirmed yet.
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(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
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.

Weakness Classification(1)

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

Data Freshness Timeline

(refreshed 25× in last 7d / 228× 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 228 total refreshes for this CVE.

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

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 in the National Vulnerability Database 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 29.3% percentile likelihood of exploitation in the next 30 days — higher percentiles indicate greater predicted risk.
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?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-53434, 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

Explore the affected products and dependency analysis for CVE-2026-53434

Explore →

Is Your Infrastructure Affected by CVE-2026-53434?

EchelonGraph automatically scans your cloud infrastructure and maps CVE exposure using blast radius analysis.

Start Free Scan →Browse All CVEs