Apache Tomcat: Padding Oracle vulnerability in EncryptInterceptor

Not analysed yet

We haven’t published our analysis of this Advisory yet. Once a person has reviewed it, this page will say what’s vulnerable, what has to be true for your app to be affected, and how to check.

Severity and exploitation

• CISA KEV Not listed.
• EPSS 0.088, the 95th percentile, on 5 Nov 2026: FIRST’s estimate of the chance of exploitation in the next 30 days.

Timeline

1. 31 Oct 2026, 14:17 UTC First seen by agentprime
2. 31 Oct 2026, 14:17 UTC Confirmed by OSV

Sources

• GitHub Advisory Database: GHSA-h468-7pvh-8vr8
• OSV: GHSA-h468-7pvh-8vr8
• nvd.nist.gov/vuln/detail/CVE-2026-29146
• github.com/apache/tomcat/commit/0112ed22abfccc3d54e44d91eb08804d0886acd1
• github.com/apache/tomcat/commit/607ebc0fa522bd9e8c05517baa2d179bbd1e659c
• github.com/apache/tomcat/commit/6d955cceca841f2eabf2d6c46b59a8c7e1cd6eaa
• github.com/apache/tomcat
• lists.apache.org/thread/lzt04z2pb3dc5tk85obn80xygw3z1p0w
• tomcat.apache.org/security-10.html#Fixed_in_Apache_Tomcat_10.1.53
• tomcat.apache.org/security-11.html#Fixed_in_Apache_Tomcat_11.0.20
• tomcat.apache.org/security-9.html#Fixed_in_Apache_Tomcat_9.0.116
• www.herodevs.com/vulnerability-directory/cve-2026-29146
• www.openwall.com/lists/oss-security/2026/04/09/24

Facts on this page come from the GitHub Advisory Database (CC-BY 4.0), OSV and the other sources listed, as published. We don’t reproduce full advisory descriptions, which can contain exploit code.