CVE-2026-41293: apache software foundation apache tomcat Improper Input Validation
Vulnerability summary
CVE-2026-41293 is a critical (CVSS 9.8) Improper Input Validation vulnerability in apache software foundation apache tomcat. EPSS estimates a 1.68% chance of exploitation in the next 30 days, higher than 76.5% of scored vulnerabilities.
Advisory lineage
Upstream 0 · Downstream 26 · Related 15Timeline
- 12-05-2026PublishedVulnerability first disclosed.
- 17-09-2026Last modifiedVulnerability information updated.
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.
CVSS metrics
7 scores · 7 sources · 1 version- OSV · UbuntuEcosystem advisory · calculated9.8CriticalCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
- OSV · DebianEcosystem advisory · calculated9.8CriticalCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
- OSV · WolfiEcosystem advisory · calculated9.8CriticalCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
- OSV · ChainguardEcosystem advisory · calculated9.8CriticalCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
- OSV · MavenEcosystem advisory · calculated9.8CriticalCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
- NVDNIST9.8CriticalCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
EPSS trend
Probability
1.68%
Chance of exploitation in the next 30 days
Percentile
77%
Versus all other CVEs
30-day change
0.00 pp
From 1.68% on 18-09-2026
Known exploited
Compare KEV catalogsNot in any of the 3 tracked catalogs.
Public exploits
0 foundNo public exploits indexed.
Weaknesses
CWE · root causeAffected systems
Chainguard24 products
- camunda-8.8< 8.8.24-r2
- camunda-8.9< 8.9.5-r2
- camunda-zeebe-8.6< 8.6.39-r12
- camunda-zeebe-8.7< 8.7.29-r1
- camunda-zeebe-8.8< 8.8.24-r1
Debian3 products
- tomcat10< 10.1.55-1~deb12u1 | < 10.1.55-1~deb13u1 | < 10.1.55-1
- tomcat11< 11.0.22-1~deb13u1 | < 11.0.22-1
- tomcat9< 9.0.70-2
Ubuntu3 products
- tomcat10< 10.1.16-1ubuntu0.1~esm4 | < 10.1.40-1ubuntu1.25.10.1 | < 10.1.40-1ubuntu1.26.04.1
- tomcat11All versions (No fix recorded) | < 11.0.18-1ubuntu0.1~esm1
- tomcat9< 9.0.16-3ubuntu0.18.04.2+esm8 | < 9.0.31-1ubuntu0.9+esm3 | < 9.0.58-1ubuntu0.2+esm4 | < 9.0.70-2ubuntu0.1+esm3 | < 9.0.95-1ubuntu1.1 | < 9.0.115-1ubuntu0.1
Org.apache.tomcat2 products
- tomcat≥ 8.5.0, < 9.0.118 | ≥ 10.1.0-M1, < 10.1.55 | ≥ 11.0.0-M1, < 11.0.22
- tomcat-coyote≥ 8.5.0, < 9.0.118 | ≥ 10.1.0-M1, < 10.1.55 | ≥ 11.0.0-M1, < 11.0.22
Wolfi2 products
- thingsboard-tb-mqtt-transport< 4.3.1.2-r0
- thingsboard-tb-node< 4.3.1.2-r0
Apache1 product
- tomcat≥ 8.5.0, ≤ 8.5.100 | ≥ 9.0.0, < 9.0.118 | ≥ 10.0.0, ≤ 10.0.27 | ≥ 10.1.0, < 10.1.55 | ≥ 11.0.0, < 11.0.22
Apache software foundation1 product
- apache tomcat≥ 11.0.0-M1, ≤ 11.0.21 | ≥ 10.1.0-M1, ≤ 10.1.54 | ≥ 9.0.0.M1, ≤ 9.0.117 | ≥ 10.0.0-M1, ≤ 10.0.27 | ≥ 8.5.0, ≤ 8.5.100
Org.apache.tomcat.embed1 product
- tomcat-embed-core≥ 8.5.0, < 9.0.118 | ≥ 10.1.0-M1, < 10.1.55 | ≥ 11.0.0-M1, < 11.0.22
8 vendors · 37 products
References
22 linksShow all 22 references
- github.com/apache/tomcatPACKAGE