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2800 articles · 109681 vulns · 38/41 feeds (7d)
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7.5
CVE-2026-29146PATCHED
apache software foundation · apache tomcat

Apache Tomcat: EncryptInterceptor vulnerable to padding oracle attack by default

Description

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.

Affected Products

VendorProductVersions
apache software foundationapache tomcat11.0.0-M1, 10.0.0-M1, 9.0.13, 8.5.38, 7.0.100, 11.0.20

References

  • https://lists.apache.org/thread/lzt04z2pb3dc5tk85obn80xygw3z1p0w(vendor-advisory)

Related News (3 articles)

Tier C
oss-security4h ago
CVE-2026-34486: Apache Tomcat: Fix for CVE-2026-29146 allowed bypass of EncryptInterceptor
→ No new info (linked only)
Tier C
oss-security5h ago
CVE-2026-29146: Apache Tomcat: EncryptInterceptor vulnerable to padding oracle attack by default
→ No new info (linked only)
Tier C
VulDB7h ago
CVE-2026-29146 | Apache Tomcat up to 7.0.109/8.5.100/9.0.115/10.1.52/11.0.18 EncryptInterceptor reliance on obfuscation or encryption of security-relevant inputs without integrity checking
→ No new info (linked only)
CVSS 3.17.5 IMPORTANT
CISA KEV❌ No
Actively exploited❌ No
Patch available
11.0.21
PublishedApr 9, 2026
Last enriched3h agov3
Trending Score32
Source articles3
Independent2
Info Completeness8/14
Missing: epss, cwe, kev, exploit, iocs, mitre_attack

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Related CVEs (5)

HIGHCVE-2026-35554
Apache Kafka Clients: Kafka Producer Message Corruption and Misrouting via Buffer Pool Race Condition
Trending: 36
MEDIUMCVE-2026-34500
Apache Tomcat: OCSP checks sometimes soft-fail with FFM even when soft-fail is disabled
Trending: 34
NONECVE-2026-24880
Apache Tomcat: Request smuggling via invalid chunk extension
Trending: 31
NONECVE-2026-25854
Apache Tomcat: Occasionally open redirect
Trending: 31
NONECVE-2026-29145
Apache Tomcat, Apache Tomcat Native: OCSP checks sometimes soft-fail even when soft-fail is disabled
Trending: 31

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Verification

State: unverified
Confidence: 0%

Vulnerability Timeline

CVE Published
Apr 9, 2026
Discovered by ZDM
Apr 9, 2026
Updated: description, severity, cvssEstimate, cweIds
Apr 9, 2026
Patch Available
Apr 9, 2026
Updated: affectedVersions, severity, patchAvailable
Apr 9, 2026

Version History

v3
Last enriched 3h ago
v3Tier C3h ago

Updated affected versions to include 11.0.20, changed severity to IMPORTANT, and provided new patch version 11.0.21.

affectedVersionsseveritypatchAvailable
via oss-security
v2Tier C6h ago

Updated description with new technical details, changed severity to HIGH, set CVSS estimate to 7.5, added CWE-310, and corrected exploit availability status.

descriptionseveritycvssEstimatecweIds
via VulDB
v18h ago

Initial creation