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2801 articles · 109663 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-security2h ago
CVE-2026-34486: Apache Tomcat: Fix for CVE-2026-29146 allowed bypass of EncryptInterceptor
→ No new info (linked only)
Tier C
oss-security3h ago
CVE-2026-29146: Apache Tomcat: EncryptInterceptor vulnerable to padding oracle attack by default
→ No new info (linked only)
Tier C
VulDB5h 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 enriched2h 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-2026-34486EXP
Apache Tomcat: Fix for CVE-2026-29146 allowed bypass of EncryptInterceptor
Trending: 58
HIGHCVE-2025-62188EXP
Apache DolphinScheduler: Users can access sensitive information through the actuator endpoint.
Trending: 53
LOWCVE-2026-34487EXP
Apache Tomcat: Cloud membership for clustering component exposed the Kubernetes bearer token
Trending: 52
LOWCVE-2026-34483EXP
Apache Tomcat: Incomplete escaping of JSON access logs
Trending: 52
NONECVE-2026-29129EXP
Apache Tomcat: TLS cipher order is not preserved
Trending: 51

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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 2h ago
v3Tier C2h 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 C5h 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
v16h ago

Initial creation