CVE-2026-29146

HIGHPre-NVD 7.57.5—
EchelonGraph scoreMEDIUM confidence

This high-severity CVE scores 7.5 under CISA-ADP (Vulnrichment) CVSS v3.1 (NVD's own analysis pending). EPSS exploit probability: 6.3%, top 7% of all CVEs by exploit prediction. GitHub Security Advisory data not yet ingested — confidence will rise once GHSA publishes (typical lag: hours to days for open-source ecosystem CVEs; never for infrastructure-only CVEs).

Triggered by: NVD CVSS baseline
Sources: cisa-adp, epss
7.5EG
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS PROB: 9%CVSS: 7.5Exploit: None knownExposed: 0

A fix is available — apply it.

Padding Oracle vulnerability in Apache Tomcat's EncryptInterceptor with default configuration.

This issue affects Apache Tomcat: from 11.0.0-M1 through 11.0.18, from 10.0.0-M1 through 10.1.52, from 9.0.13 through 9..115, from 8.5.38 through 8.5.100, from 7.0.100 through 7.0.109.

Users are recommended to upgrade to version 11.0.19, 10.1.53 and 9.0.116, which fixes the issue.

CVSS v3
7.5
EG Score
7.5(medium)
EG Risk
51(Track)
EG Risk 51/100SSVC: 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
Severity75% × 45%
Exploitation6% × 40%
Automatability100% × 15%
Action: Routine — remediate on your standard cadence.
EPSS PROB
9%
EPSS %ILE
95%
KEV
Not listed

Published

April 9, 2026

Last Modified

August 17, 2026

Advisory Details (2)

Auto-updated Jun 15, 2026
No patch confirmed yet.
generic

oss-security - CVE-2026-29146: Apache Tomcat: EncryptInterceptor vulnerable to padding oracle attack by default

http://www.openwall.com/lists/oss-security/2026/04/09/24
generic
https://lists.apache.org/thread/lzt04z2pb3dc5tk85obn80xygw3z1p0w

Vendor Advisories for CVE-2026-29146(15)

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

Patch Availability(14)

Vendor / EcosystemFixed in / PatchReleasedSource
redhatjws7-tomcat-0:11.0.21-5.redhat_00004.1.el9jws2026-07-14redhat
redhattomcat2026-07-14redhat
redhattomcat-0:7.0.76-18.el7_92026-07-13redhat
redhattomcat-1:9.0.87-2.el8_102026-07-09redhat
redhattomcat-1:9.0.87-2.el8_82026-07-09redhat
redhattomcat-1:9.0.87-2.el9_22026-07-08redhat
redhattomcat-1:9.0.87-2.el9_42026-07-08redhat
redhattomcat-1:9.0.117-2.el9_82026-07-08redhat
redhattomcat9-1:9.0.87-6.el10_02026-07-08redhat
redhattomcat-1:9.0.87-4.el9_62026-07-08redhat
redhattomcat9-1:9.0.117-2.el10_22026-07-08redhat
redhattomcat-1:10.1.49-3.el10_22026-07-08redhat
redhattomcat-1:10.1.36-2.el10_02026-07-08redhat
redhatjws6-tomcat-0:10.1.49-13.redhat_00011.1.el9jws2026-05-26redhat

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

(11 across 5 ecosystems)
Debian:13(3)
PackageVulnerable rangeFixed inDependents
tomcat1010.1.40-1 ... 10.1.55-1~deb12u1 (8 versions)10.1.55-1~deb13u1—
tomcat1111.0.11-1 ... 11.0.6-1 (6 versions)11.0.22-1~deb13u1—
tomcat9—9.0.70-2—
Debian:14(3)
PackageVulnerable rangeFixed inDependents
tomcat1010.1.40-1 ... 10.1.52-2 (6 versions)10.1.54-1—
tomcat1111.0.11-1, 11.0.15-1, 11.0.15-1~deb13u1, 11.0.18-1, 11.0.6-111.0.21-1—
tomcat9—9.0.70-2—
Debian:12(2)
PackageVulnerable rangeFixed inDependents
tomcat1010.1.10-1 ... 10.1.9-1 (33 versions)10.1.55-1~deb12u1—
tomcat9—9.0.70-2—
Maven(2)
PackageVulnerable rangeFixed inDependents
org.apache.tomcat:tomcat7.0.100 ... 7.0.109 (8 versions)11.0.20—
org.apache.tomcat:tomcat-tribes7.0.100 ... 7.0.109 (8 versions)11.0.20—
Debian:11(1)
PackageVulnerable rangeFixed inDependents
tomcat99.0.107-0+deb11u1 ... 9.0.95-1 (34 versions)9.0.118-0+deb11u1—

Weakness Classification(3)

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

Data Freshness Timeline

(refreshed 5× in last 7d / 30× 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 207 total refreshes for this CVE.

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

Frequently asked(5)

What is CVE-2026-29146?
CVE-2026-29146 is a high vulnerability published on April 9, 2026. Padding Oracle vulnerability in Apache Tomcat's EncryptInterceptor with default configuration. This issue affects Apache Tomcat: from 11.0.0-M1 through 11.0.18, from 10.0.0-M1 through 10.1.52, from 9.0.13 through 9..115, from 8.5.38 through 8.5.100, from 7.0.100 through 7.0.109. Users are…
When was CVE-2026-29146 disclosed?
CVE-2026-29146 was first published in the National Vulnerability Database on April 9, 2026, with the most recent update on August 17, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-29146 actively exploited?
CVE-2026-29146 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 9% probability of exploitation in the next 30 days, which ranks it in the top 5.1% of all scored CVEs.
What is the CVSS score of CVE-2026-29146?
CVE-2026-29146 has a CVSS v3.1 base score of 7.5 (CISA-ADP / Vulnrichment enrichment; NVD's own analysis pending).
How do I remediate CVE-2026-29146?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-29146, 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

See which npm, PyPI, Go, and Maven packages are affected by CVE-2026-29146

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