CVE-2026-53404

HIGHPre-NVD 7.37.3—
EchelonGraph scoreHIGH confidence

Score 7.3 from GitHub Security Advisory (severity: HIGH) published 2026-06-29. CISA-ADP (Vulnrichment) CVSS v3.1 baseline 7.3; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: cisa-adp, epss, ghsa
Trending — 3 sources updated this week
7.3
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS: 0%CVSS: 7.3Exploit: NoneExposed: 0

A fix is available — apply it.

Always-Incorrect Control Flow Implementation vulnerability in Apache Tomcat's rewrite valve meant that if the first condition in an OR chain matched, subsequent non-OR conditions were skipped.

This issue affects Apache Tomcat: from 11.0.0-M1 through 11.0.22, from 10.1.0-M1 through 10.1.55, from 9.0.0.M1 through 9.0.118, from 8.5.0 through 8.5.100. Other versions that have reached end of support may also be affected.

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

CVSS v3
7.3
EG Score
7.3(high)
EPSS
33.8%
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-2026-53404: Apache Tomcat: Bad ornext processing in RewriteValve

http://www.openwall.com/lists/oss-security/2026/06/29/21
generic
https://lists.apache.org/thread/rdhpghgfskrdmw9hqzjgjrtw538smpmz

Vendor Advisories for CVE-2026-53404(4)

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

Patch Availability(3)

Vendor / EcosystemFixed in / PatchReleasedSource
ubuntutomcat8-user (8.0.32-1ubuntu1.13+esm2) @ xenial2026-07-16ubuntu
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.

Additional Vendor Advisories

(1)

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 12× in last 7d / 95× 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. 2026-07-22 14:08 UTCEPSS rescore
  2. 2026-07-21 15:25 UTCEPSS rescore
  3. 2026-07-20 17:08 UTCEPSS rescore
  4. 2026-07-19 02:29 UTCEPSS rescore
  5. 2026-07-18 10:04 UTCEPSS rescore
  6. 2026-07-17 06:24 UTCVendor advisory
  7. 2026-07-17 06:24 UTCGHSA enrichment
  8. 2026-07-16 17:38 UTCVendor advisory
  9. 2026-07-16 17:38 UTCGHSA enrichment
  10. 2026-07-16 17:03 UTCEPSS rescore
  11. 2026-07-16 04:52 UTCVendor advisory
  12. 2026-07-16 04:52 UTCGHSA enrichment
  13. 2026-07-15 16:57 UTCEPSS rescore
  14. 2026-07-15 16:57 UTCEPSS rescore
  15. 2026-07-15 16:05 UTCVendor advisory
  16. 2026-07-15 16:05 UTCGHSA enrichment
  17. 2026-07-15 03:19 UTCVendor advisory
  18. 2026-07-15 03:19 UTCGHSA enrichment
  19. 2026-07-15 02:00 UTCEPSS rescore
  20. 2026-07-15 02:00 UTCEPSS rescore
  21. 2026-07-14 14:31 UTCVendor advisory
  22. 2026-07-14 14:31 UTCGHSA enrichment
  23. 2026-07-14 01:44 UTCVendor advisory
  24. 2026-07-14 01:44 UTCGHSA enrichment
  25. 2026-07-13 22:31 UTCEPSS rescore
Show 70 more
  1. 2026-07-13 12:58 UTCVendor advisory
  2. 2026-07-13 12:58 UTCGHSA enrichment
  3. 2026-07-13 06:13 UTCEPSS rescore
  4. 2026-07-13 06:13 UTCEPSS rescore
  5. 2026-07-13 00:12 UTCVendor advisory
  6. 2026-07-13 00:12 UTCGHSA enrichment
  7. 2026-07-12 11:26 UTCVendor advisory
  8. 2026-07-12 11:26 UTCGHSA enrichment
  9. 2026-07-12 05:46 UTCEPSS rescore
  10. 2026-07-11 22:40 UTCVendor advisory
  11. 2026-07-11 22:39 UTCGHSA enrichment
  12. 2026-07-11 09:52 UTCVendor advisory
  13. 2026-07-11 09:52 UTCGHSA enrichment
  14. 2026-07-11 08:27 UTCEPSS rescore
  15. 2026-07-11 08:27 UTCEPSS rescore
  16. 2026-07-10 21:06 UTCVendor advisory
  17. 2026-07-10 21:06 UTCGHSA enrichment
  18. 2026-07-10 08:19 UTCVendor advisory
  19. 2026-07-10 08:19 UTCGHSA enrichment
  20. 2026-07-09 19:30 UTCVendor advisory
  21. 2026-07-09 19:30 UTCGHSA enrichment
  22. 2026-07-09 19:10 UTCEPSS rescore
  23. 2026-07-09 19:10 UTCEPSS rescore
  24. 2026-07-09 06:44 UTCVendor advisory
  25. 2026-07-09 06:44 UTCGHSA enrichment
  26. 2026-07-08 17:58 UTCVendor advisory
  27. 2026-07-08 17:58 UTCGHSA enrichment
  28. 2026-07-08 15:16 UTCEPSS rescore
  29. 2026-07-08 15:16 UTCEPSS rescore
  30. 2026-07-08 05:12 UTCVendor advisory
  31. 2026-07-08 05:12 UTCGHSA enrichment
  32. 2026-07-07 16:26 UTCVendor advisory
  33. 2026-07-07 16:25 UTCGHSA enrichment
  34. 2026-07-07 13:46 UTCEPSS rescore
  35. 2026-07-07 13:46 UTCEPSS rescore
  36. 2026-07-07 03:29 UTCVendor advisory
  37. 2026-07-07 03:28 UTCGHSA enrichment
  38. 2026-07-06 16:27 UTCEPSS rescore
  39. 2026-07-06 16:27 UTCEPSS rescore
  40. 2026-07-06 14:42 UTCVendor advisory
  41. 2026-07-06 14:42 UTCGHSA enrichment
  42. 2026-07-06 02:23 UTCEPSS rescore
  43. 2026-07-06 02:23 UTCEPSS rescore
  44. 2026-07-06 01:54 UTCVendor advisory
  45. 2026-07-06 01:54 UTCGHSA enrichment
  46. 2026-07-05 13:08 UTCVendor advisory
  47. 2026-07-05 13:08 UTCGHSA enrichment
  48. 2026-07-05 02:31 UTCEPSS rescore
  49. 2026-07-05 02:30 UTCEPSS rescore
  50. 2026-07-05 00:21 UTCVendor advisory
  51. 2026-07-05 00:21 UTCGHSA enrichment
  52. 2026-07-04 11:33 UTCVendor advisory
  53. 2026-07-04 11:33 UTCGHSA enrichment
  54. 2026-07-04 06:31 UTCEPSS rescore
  55. 2026-07-04 06:31 UTCEPSS rescore
  56. 2026-07-03 22:46 UTCVendor advisory
  57. 2026-07-03 22:46 UTCGHSA enrichment
  58. 2026-07-03 09:59 UTCVendor advisory
  59. 2026-07-03 09:59 UTCGHSA enrichment
  60. 2026-07-02 21:12 UTCEG score recompute▲ 7.30
  61. 2026-07-02 21:12 UTCVendor advisory
  62. 2026-07-02 21:12 UTCGHSA enrichment
  63. 2026-07-01 15:07 UTCEPSS rescore
  64. 2026-06-30 23:22 UTCEPSS rescore
  65. 2026-06-30 14:32 UTCNVD updateCVSS v3 → 7.3 · severity → HIGH
  66. 2026-06-30 00:21 UTCNVD update
  67. 2026-06-29 22:44 UTCMITRE cvelistV5
  68. 2026-06-29 21:26 UTCNVD update
  69. 2026-06-29 20:57 UTCEG score recompute
  70. 2026-06-29 20:57 UTCMITRE cvelistV5first tracked

Frequently asked(5)

What is CVE-2026-53404?
CVE-2026-53404 is a high vulnerability published on June 29, 2026. Always-Incorrect Control Flow Implementation vulnerability in Apache Tomcat's rewrite valve meant that if the first condition in an OR chain matched, subsequent non-OR conditions were skipped. This issue affects Apache Tomcat: from 11.0.0-M1 through 11.0.22, from 10.1.0-M1 through 10.1.55, from…
When was CVE-2026-53404 disclosed?
CVE-2026-53404 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-2026-53404 actively exploited?
CVE-2026-53404 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 33.8% percentile likelihood of exploitation in the next 30 days — higher percentiles indicate greater predicted risk.
What is the CVSS score of CVE-2026-53404?
CVE-2026-53404 has a CVSS v3.1 base score of 7.3 (CISA-ADP / Vulnrichment enrichment; NVD's own analysis pending).
How do I remediate CVE-2026-53404?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-53404, 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.

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