CVE-2026-53404

HIGHPre-NVD 7.37.3—
EchelonGraph scoreMEDIUM 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 — 4 sources updated this week
7.3EG
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS PROB: 1%CVSS: 7.3Exploit: None knownExposed: 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(medium)
EG Risk
38(Track)
EG Risk 38/100SSVC: 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
Severity73% × 45%
Exploitation1% × 40%
Automatability30% × 15%
Action: Routine — remediate on your standard cadence.
EPSS PROB
1%
EPSS %ILE
45%
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(7)

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

Patch Availability(6)

Vendor / EcosystemFixed in / PatchReleasedSource
ubuntutomcat8-user (8.0.32-1ubuntu1.13+esm2) @ xenial2026-08-20ubuntu
redhattomcat-catalina2026-08-05redhat
redhatjws7-tomcat-0:11.0.21-6.redhat_00005.1.el9jws2026-08-05redhat
redhatjws6-tomcat-0:10.1.49-15.redhat_00013.1.el9jws2026-07-22redhat
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 rangeFixed inDependents
tomcat1010.1.40-1 ... 10.1.55-1~deb13u1 (10 versions)——
tomcat1111.0.11-1 ... 11.0.6-1 (10 versions)——
tomcat9—9.0.70-2—
Debian:14(3)
PackageVulnerable rangeFixed inDependents
tomcat1010.1.40-1 ... 10.1.55-1~deb13u1 (10 versions)——
tomcat1111.0.11-1 ... 11.0.6-1 (9 versions)11.0.24-1—
tomcat9—9.0.70-2—
Debian:12(2)
PackageVulnerable rangeFixed inDependents
tomcat1010.1.10-1 ... 10.1.9-1 (36 versions)——
tomcat9—9.0.70-2—
Debian:11(1)
PackageVulnerable rangeFixed inDependents
tomcat99.0.43-1 ... 9.0.70-1 (28 versions)9.0.70-2—

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 38× in last 7d / 146× 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 240 total refreshes for this CVE.

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

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 1% probability of exploitation in the next 30 days, which ranks it in the top 54.8% of all scored CVEs.
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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