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
7.3EG
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS PROB: 0.7%CVSS: 7.3Exploit: None knownExposed services: Not assessed

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
7.3HIGHmedium confidence
EG Risk
38
EG Risk 38/100

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
Severity73% × 45%
Exploitation1% × 40%
Automatability30% × 15%
EPSS PROB
0.7%
EPSS %ILE
49th
KEV
Not listed

Published

June 29, 2026

Last Modified

July 2, 2026

Advisory Details (2)

Auto-updated Jun 30, 2026
Patch available.
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(15)

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 / EcosystemFix (by version range) / PatchReleasedSource
ubuntutomcat8-user (8.0.32-1ubuntu1.13+esm2) @ xenial2026-09-23ubuntu
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 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.

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 7× in last 7d / 38× 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 318 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 07:26 UTCEG score recompute
  13. 2026-09-23 07:26 UTCVendor advisory
  14. 2026-09-23 07:26 UTCGHSA enrichment
  15. 2026-09-20 20:16 UTCEPSS rescore
  16. 2026-09-18 19:28 UTCEPSS rescore
  17. 2026-09-18 06:55 UTCEG score recompute
  18. 2026-09-18 06:55 UTCVendor advisory
  19. 2026-09-18 06:55 UTCGHSA enrichment
  20. 2026-09-16 14:08 UTCEPSS rescore
  21. 2026-09-16 05:15 UTCEPSS rescore
  22. 2026-09-14 00:50 UTCEG score recompute
  23. 2026-09-14 00:50 UTCVendor advisory
  24. 2026-09-14 00:50 UTCGHSA enrichment
  25. 2026-09-13 16:47 UTCEPSS rescore
Show 75 more
  1. 2026-09-13 09:18 UTCVendor advisory
  2. 2026-09-13 09:18 UTCGHSA enrichment
  3. 2026-09-12 15:13 UTCEG score recompute
  4. 2026-09-12 15:13 UTCVendor advisory
  5. 2026-09-12 15:13 UTCGHSA enrichment
  6. 2026-09-11 14:53 UTCEPSS rescore
  7. 2026-09-10 09:35 UTCEPSS rescore
  8. 2026-09-08 22:01 UTCEPSS rescore
  9. 2026-09-07 16:01 UTCEPSS rescore
  10. 2026-09-06 14:39 UTCEG score recompute
  11. 2026-09-06 14:39 UTCVendor advisory
  12. 2026-09-06 14:39 UTCGHSA enrichment
  13. 2026-09-06 13:47 UTCEPSS rescore
  14. 2026-09-04 05:06 UTCEPSS rescore
  15. 2026-09-02 14:12 UTCEPSS rescore
  16. 2026-09-01 13:54 UTCEPSS rescore
  17. 2026-09-01 04:40 UTCEPSS rescore
  18. 2026-08-30 19:17 UTCEPSS rescore
  19. 2026-08-30 18:24 UTCEG score recompute
  20. 2026-08-30 18:24 UTCVendor advisory
  21. 2026-08-30 18:24 UTCGHSA enrichment
  22. 2026-08-30 01:22 UTCEPSS rescore
  23. 2026-08-28 21:41 UTCEPSS rescore
  24. 2026-08-27 22:45 UTCEG score recompute
  25. 2026-08-27 22:45 UTCVendor advisory
  26. 2026-08-27 22:45 UTCGHSA enrichment
  27. 2026-08-27 14:25 UTCEPSS rescore
  28. 2026-08-26 14:46 UTCEPSS rescore
  29. 2026-08-25 13:49 UTCEPSS rescore
  30. 2026-08-25 01:28 UTCEG score recompute
  31. 2026-08-25 01:28 UTCVendor advisory
  32. 2026-08-25 01:28 UTCGHSA enrichment
  33. 2026-08-24 12:39 UTCEG score recompute
  34. 2026-08-24 12:39 UTCVendor advisory
  35. 2026-08-24 12:39 UTCGHSA enrichment
  36. 2026-08-23 23:20 UTCVendor advisory
  37. 2026-08-23 23:20 UTCGHSA enrichment
  38. 2026-08-23 10:34 UTCEG score recompute
  39. 2026-08-23 10:34 UTCVendor advisory
  40. 2026-08-23 10:34 UTCGHSA enrichment
  41. 2026-08-23 00:19 UTCEPSS rescore
  42. 2026-08-22 21:47 UTCVendor advisory
  43. 2026-08-22 21:47 UTCGHSA enrichment
  44. 2026-08-22 08:47 UTCEG score recompute
  45. 2026-08-22 08:47 UTCVendor advisory
  46. 2026-08-22 08:47 UTCGHSA enrichment
  47. 2026-08-21 23:49 UTCEPSS rescore
  48. 2026-08-21 20:00 UTCVendor advisory
  49. 2026-08-21 20:00 UTCGHSA enrichment
  50. 2026-08-21 07:14 UTCEG score recompute
  51. 2026-08-21 07:14 UTCVendor advisory
  52. 2026-08-21 07:14 UTCGHSA enrichment
  53. 2026-08-20 22:55 UTCEPSS rescore
  54. 2026-08-20 18:27 UTCVendor advisory
  55. 2026-08-20 18:27 UTCGHSA enrichment
  56. 2026-08-20 05:41 UTCEG score recompute
  57. 2026-08-20 05:41 UTCVendor advisory
  58. 2026-08-20 05:41 UTCGHSA enrichment
  59. 2026-08-19 17:04 UTCEPSS rescore
  60. 2026-08-19 12:35 UTCVendor advisory
  61. 2026-08-19 12:35 UTCGHSA enrichment
  62. 2026-08-18 23:09 UTCEG score recompute
  63. 2026-08-18 23:09 UTCVendor advisory
  64. 2026-08-18 23:09 UTCGHSA enrichment
  65. 2026-08-18 13:48 UTCEPSS rescore
  66. 2026-08-18 06:29 UTCEG score recompute
  67. 2026-08-18 06:29 UTCVendor advisory
  68. 2026-08-18 06:29 UTCGHSA enrichment
  69. 2026-08-17 13:47 UTCEPSS rescore
  70. 2026-08-17 11:14 UTCVendor advisory
  71. 2026-08-17 11:14 UTCGHSA enrichment
  72. 2026-08-16 22:28 UTCEG score recompute
  73. 2026-08-16 22:28 UTCVendor advisory
  74. 2026-08-16 22:28 UTCGHSA enrichment
  75. 2026-08-16 14:56 UTCEPSS rescore

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

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 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 0.7% probability of exploitation in the next 30 days (49th percentile of EPSS-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?
A fix for CVE-2026-53404 is available: update to the fixed version the vendor names in its advisory. The vendor advisories EchelonGraph has for CVE-2026-53404 are linked in the Vendor Advisories panel on this page.

Dependency Blast Radius

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