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CVE-2026-41293 Apache Tomcat

Affected softwareApache Tomcat
Severity9.8 Critical CVSS 3.1
Fixed in9.0.118, 10.1.55, 11.0.22
WeaknessImproper input validation (CWE-20)
Published12 May 2026
Updated26 Oct 2026

Description

Improper Input Validation vulnerability in Apache Tomcat. This issue affects Apache Tomcat: from 11.0.0-M1 through 11.0.21, from 10.1.0-M1 through 10.1.54, from 9.0.0.M1 through 9.0.117, from 10.0.0-M1 through 10.0.27. Older, end of support versions may also be affected. Users are recommended to upgrade to version [FIXED_VERSION], which fixes the issue.

Exploitation status

No public exploit

No exploit has been reported in the sources we check. The 1 repository below are public GitHub repositories with fewer than 5 stars.

  • CISA KEV not listed
  • VulnCheck KEV not listed
  • CISA Vulnrichment exploitation: none
  • Indexed PoC 1 indexed, none at 5+ stars
  • EPSS 1.7% chance in 30 days

1 of these are GitHub repositories with fewer than 5 stars. They are listed for reference and don't count toward the exploitation status above.

IndexArtifactStarsFirst seen
GitHub PoC 查出 Spring Boot 内嵌 Tomcat 的真实版本(pom 里没有),并对每条 2026 年 CVE 同时给出 ASF 官方评级与 GitHub 评级、触发条件、以及这条会不会进 Dependabot 告警 CVE-2026-41293 2026-08-06

Waratek protection

No exploit published

Within Waratek scope. In the sources we check, nobody has published exploit code for this CVE or reported it being exploited.

A public code fix exists: apache/tomcat 19f17a2.

  • Protection none
  • Action unverified
  • Review automated Upstream data
  • Record active
Decided by Exploit code for this candidate, published in a reviewed catalogue or a GitHub repository with 5 or more stars, or in use per CISA or VulnCheck; not only a CISA verdict, a forecast, or nothing at all
Finding This CVE is not listed in CISA KEV or VulnCheck KEV, CISA Vulnrichment records no active exploitation, no reviewed exploit catalogue carries an entry for it, and no GitHub PoC repository for it has 5 or more stars. Nobody has published exploit code worth tracing, so it is not a candidate for a rule ahead of the ones where somebody has; an upstream fix path does exist, so the remediation half of the candidacy still holds. This is a statement about what has been published, not about whether the defect is reachable or serious.

Affected software and releases

Maven packages

Affected and fixed versions, from OSV.dev
PackageIntroducedFixedLast affected
org.apache.tomcat.embed:tomcat-embed-core 8.5.0 9.0.118 unbounded
org.apache.tomcat.embed:tomcat-embed-core 10.1.0-M1 10.1.55 unbounded
org.apache.tomcat.embed:tomcat-embed-core 11.0.0-M1 11.0.22 unbounded
org.apache.tomcat:tomcat 8.5.0 9.0.118 unbounded
org.apache.tomcat:tomcat 10.1.0-M1 10.1.55 unbounded
org.apache.tomcat:tomcat 11.0.0-M1 11.0.22 unbounded
org.apache.tomcat:tomcat-coyote 8.5.0 9.0.118 unbounded
org.apache.tomcat:tomcat-coyote 10.1.0-M1 10.1.55 unbounded
org.apache.tomcat:tomcat-coyote 11.0.0-M1 11.0.22 unbounded

Products and versions

4 products, 14 version entries
SourceVendorProductSchemeAffected versions
nvd apache tomcat generic ≥ 8.5.0 and ≤ 8.5.100 · ≥ 9.0.0 and < 9.0.118 · ≥ 10.0.0 and ≤ 10.0.27 · ≥ 10.1.0 and < 10.1.55 · ≥ 11.0.0 and < 11.0.22
osv org.apache.tomcat tomcat generic ≥ 8.5.0 and < 9.0.118 · ≥ 10.1.0 and < 10.1.55 · ≥ 11.0.0 and < 11.0.22
osv org.apache.tomcat tomcat-coyote generic ≥ 8.5.0 and < 9.0.118 · ≥ 10.1.0 and < 10.1.55 · ≥ 11.0.0 and < 11.0.22
osv org.apache.tomcat.embed tomcat-embed-core generic ≥ 8.5.0 and < 9.0.118 · ≥ 10.1.0 and < 10.1.55 · ≥ 11.0.0 and < 11.0.22

References

URLTags
https://github.com/apache/tomcat/commit/19f17a257797e8d139b33ff9c88d362a273be148 WEB
https://github.com/apache/tomcat/commit/1c70480466572c9192ed412ebefcd43fc63137fd WEB
https://github.com/apache/tomcat/commit/2a2476460e823789f530a22207873ea8cd6eff3b WEB
https://github.com/apache/tomcat/commit/3915fd27e6810b14ccd21e3d900bd8faef44d3df WEB
https://github.com/apache/tomcat/commit/57c2b3bfd62792631e1df24cf4237b990a0b36fa WEB
https://github.com/apache/tomcat/commit/c2925554c677da57390f940d856871e18daaacab WEB
https://github.com/apache/tomcat/commit/cf9452443bcbf3b1a4b435ef7d624364f1b65ca3 WEB
https://github.com/apache/tomcat/commit/e5cef9618c3f4fd31bd6fb1e83f0f18022280dac WEB
https://github.com/apache/tomcat/commit/f72a6174ab1f0f5a053435f80448b4f6837fe6d7 WEB
https://github.com/apache/tomcat PACKAGE

Timeline

Published2026-05-12By the CVE Program.
NVD record modified2026-10-26NVD's own last-modified date for this record.