cve.bz

CVE-2025-31651

9.8 criticalEPSS 4.3%

Critical (9.8) in apache tomcat. EPSS 4.3% chance of exploitation in the next 30 days. Fixed in org.apache.tomcat:tomcat-catalina 10.1.40, 11.0.6, 9.0.104.

Improper Neutralization of Escape, Meta, or Control Sequences vulnerability in Apache Tomcat. For a subset of unlikely rewrite rule configurations, it was possible for a specially crafted request to bypass some rewrite rules. If those rewrite rules effectively enforced security constraints, those constraints could be bypassed. This issue affects Apache Tomcat: from 11.0.0-M1 through 11.0.5, from 10.1.0-M1 through 10.1.39, from 9.0.0.M1 through 9.0.102. The following versions were EOL at the time the CVE was created but are known to be affected: 8.5.0 though 8.5.100. Other, older, EOL versions may also be affected. Users are recommended to upgrade to version [FIXED_VERSION], which fixes the issue.

Severity

CVSS 3.1

9.8 critical
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
EPSS
4.3% chance of exploitation in the next 30 days; higher than 91% of CVEs (scores of 2026-10-31)
CWE
CWE-116
Published
Modified
Record from
the NVD, synced

Affected

Packages (OSV)

AdvisoryEcosystemPackageAffectedFixed in
GHSA-ff77-26x5-69crMavenorg.apache.tomcat:tomcat-catalina>=9.0.76 <9.0.1049.0.104
GHSA-ff77-26x5-69crMavenorg.apache.tomcat:tomcat-catalina>=10.1.10 <10.1.4010.1.40
GHSA-ff77-26x5-69crMavenorg.apache.tomcat:tomcat-catalina>=11.0.0-M2 <11.0.611.0.6
GHSA-ff77-26x5-69crMavenorg.apache.tomcat.embed:tomcat-embed-core>=9.0.76 <9.0.1049.0.104
GHSA-ff77-26x5-69crMavenorg.apache.tomcat.embed:tomcat-embed-core>=10.1.10 <10.1.4010.1.40
GHSA-ff77-26x5-69crMavenorg.apache.tomcat.embed:tomcat-embed-core>=11.0.0-M2 <11.0.611.0.6
GHSA-ff77-26x5-69crMavenorg.apache.tomcat:tomcat-catalina>=8.5.0 <=8.5.100no fix published
GHSA-ff77-26x5-69crMavenorg.apache.tomcat.embed:tomcat-embed-core>=8.5.0 <=8.5.100no fix published

References

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