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 — 5 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
33.2%
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(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 38× in last 7d / 43× 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. 2026-07-07 03:29 UTCEG score recompute
  2. 2026-07-07 03:29 UTCVendor advisory
  3. 2026-07-07 03:28 UTCGHSA enrichment
  4. 2026-07-06 16:27 UTCEPSS rescore
  5. 2026-07-06 16:27 UTCEPSS rescore
  6. 2026-07-06 14:42 UTCEG score recompute
  7. 2026-07-06 14:42 UTCVendor advisory
  8. 2026-07-06 14:42 UTCGHSA enrichment
  9. 2026-07-06 02:23 UTCEPSS rescore
  10. 2026-07-06 02:23 UTCEPSS rescore
  11. 2026-07-06 01:54 UTCEG score recompute
  12. 2026-07-06 01:54 UTCVendor advisory
  13. 2026-07-06 01:54 UTCGHSA enrichment
  14. 2026-07-05 13:08 UTCEG score recompute
  15. 2026-07-05 13:08 UTCVendor advisory
  16. 2026-07-05 13:08 UTCGHSA enrichment
  17. 2026-07-05 02:31 UTCEPSS rescore
  18. 2026-07-05 02:30 UTCEPSS rescore
  19. 2026-07-05 00:21 UTCEG score recompute
  20. 2026-07-05 00:21 UTCVendor advisory
  21. 2026-07-05 00:21 UTCGHSA enrichment
  22. 2026-07-04 11:33 UTCEG score recompute
  23. 2026-07-04 11:33 UTCVendor advisory
  24. 2026-07-04 11:33 UTCGHSA enrichment
  25. 2026-07-04 06:31 UTCEPSS rescore
Show 18 more
  1. 2026-07-04 06:31 UTCEPSS rescore
  2. 2026-07-03 22:46 UTCEG score recompute
  3. 2026-07-03 22:46 UTCVendor advisory
  4. 2026-07-03 22:46 UTCGHSA enrichment
  5. 2026-07-03 09:59 UTCEG score recompute
  6. 2026-07-03 09:59 UTCVendor advisory
  7. 2026-07-03 09:59 UTCGHSA enrichment
  8. 2026-07-02 21:12 UTCEG score recompute▲ 7.30
  9. 2026-07-02 21:12 UTCVendor advisory
  10. 2026-07-02 21:12 UTCGHSA enrichment
  11. 2026-07-01 15:07 UTCEPSS rescore
  12. 2026-06-30 23:22 UTCEPSS rescore
  13. 2026-06-30 14:32 UTCNVD updateCVSS v3 → 7.3 · severity → HIGH
  14. 2026-06-30 00:21 UTCNVD update
  15. 2026-06-29 22:44 UTCMITRE cvelistV5
  16. 2026-06-29 21:26 UTCNVD update
  17. 2026-06-29 20:57 UTCEG score recompute
  18. 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 33.2% 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.

Dependency Blast Radius

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