Which products and versions are affected by CVE-2025-31650?

Affected: Tomcat (Apache) versions 11.0.0-milestone10, 11.0.0-milestone11, 11.0.0-milestone12, 11.0.0-milestone13, 11.0.0-milestone14, 11.0.0-milestone15, 11.0.0-milestone16, 11.0.0-milestone17; camunda-zeebe-8.6 (chainguard); thingsboard (chainguard), among others. The full list is in the CVE brief.

Is CVE-2025-31650 being exploited in the wild?

It is not listed in any known-exploited vulnerabilities catalog.

Is CVE-2025-31650 in the CISA KEV catalog?

No, it is not currently listed in the CISA Known Exploited Vulnerabilities catalog.

Is there a public exploit for CVE-2025-31650?

Public exploit code is available.

Is there a fix for CVE-2025-31650?

Fixed versions are available, including Tomcat 9.0.104, Tomcat NA, Tomcat 1:9.0.87-1.el8_10.4.

How urgently should CVE-2025-31650 be patched?

Brandefense priority: patch immediately, because it is very likely to be exploited soon.

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Vulnerability Intelligence

CVE-2025-31650

MediumPublic exploit

Apache Tomcat Denial of Service via invalid HTTP priority header

Published Apr 28, 2025 · Updated Oct 8, 2026 · Also known as BIT-tomcat-2025-31650, DEBIAN-CVE-2025-31650, GHSA-3p2h-wqq4-wf4h, ROOT-APP-MAVEN-CVE-2025-31650, SUSE-SU-2025:01521-1, SUSE-SU-2025:01537-1, UBUNTU-CVE-2025-31650

Key Facts

Patch immediately

CVE-2025-31650 is a medium-severity vulnerability (CVSS 8.7 v4) affecting Tomcat (Apache), camunda-zeebe-8.6 (chainguard), thingsboard (chainguard) and 22 more products.
It is not listed in any known-exploited vulnerabilities catalog. Public exploit code is available.
EPSS estimates a 61% probability of exploitation in the next 30 days.
Fixed versions are available, including Tomcat 9.0.104, Tomcat NA, Tomcat 1:9.0.87-1.el8_10.4.
Brandefense priority: patch immediately, because it is very likely to be exploited soon.

CVSS v4

8.7

CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U

EPSS (30-day exploit likelihood)

61%

Higher than 99.1% of all scored CVEs

Exploited in the wild

No known

Not in a known-exploited catalog

Public exploit code

Available

Proof-of-concept or weaponized module

Get the full CVE-2025-31650 brief as a PDF

Every affected product and fixed release, exploitation status and a first 24 hours response checklist, emailed within minutes.

Description

Improper Input Validation vulnerability in Apache Tomcat. Incorrect error handling for some invalid HTTP priority headers resulted in incomplete clean-up of the failed request which created a memory leak. A large number of such requests could trigger an OutOfMemoryException resulting in a denial of service.

This issue affects Apache Tomcat: from 9.0.76 through 9.0.102, from 10.1.10 through 10.1.39, from 11.0.0-M2 through 11.0.5. The following versions were EOL at the time the CVE was created but are known to be affected: 8.5.90 though 8.5.100.

Users are recommended to upgrade to version 9.0.104, 10.1.40 or 11.0.6 which fix the issue.

Affected Products

342 affected entries in total

Product	Affected versions	Fixed in
TomcatApache	11.0.0-milestone10, 11.0.0-milestone11, 11.0.0-milestone12, 11.0.0-milestone13, 11.0.0-milestone14, 11.0.0-milestone15, 11.0.0-milestone16, 11.0.0-milestone17	9.0.104
camunda-zeebe-8.6chainguard	See advisory	8.6.15-r1
thingsboardchainguard	See advisory	4.0.1-r1
tomcat-10minimos	See advisory	10.1.40-r0
tomcat-11minimos	See advisory	11.0.6-r0

20 more affected products in the full CVE brief

Patched Releases

Tomcat

9.0.104, NA, 1:9.0.87-1.el8_10.4, 1:9.0.87-1.el8_8.5, 1:9.0.87-1.el9_2.4, 1:9.0.87-3.el9_6.1, 10.1.40, 11.0.6, 9.0.104-1.1, 9.0.104-150200.81.1

tomcat10

10.1.40-1.ph5, 1:10.1.40-1.amzn2023.0.1, 10.1.16-1ubuntu0.1~esm3, 10.1.35-1ubuntu0.1, 10.1.40-1, 10.1.40-1.1, 10.1.40-150200.5.40.1

tomcat10-webapps

10.1.40-1.ph5, 1:10.1.40-1.amzn2023.0.1, 10.1.40-1.1, 10.1.40-150200.5.40.1

tomcat9

9.0.104-1.ph4, 9.0.104-1.ph5, 1:9.0.104-1.amzn2023.0.1, 1:9.0.87-5.el10_0.1, 9.0.107-0+deb11u1, 9.0.70-2

tomcat9-webapps

9.0.104-1.ph4, 9.0.104-1.ph5, 1:9.0.104-1.amzn2023.0.1, 1:9.0.87-5.el10_0.1

camunda-zeebe-8.6

8.6.15-r1

io.root.org.apache.tomcat.embed:tomcat-embed-core

10.1.16-root.io.10, 10.1.16-root.io.11, 10.1.16-root.io.12, 10.1.16-root.io.7, 10.1.16-root.io.8, 10.1.16-root.io.9, 10.1.30-root.io.10, 10.1.30-root.io.11, 10.1.30-root.io.12, 10.1.30-root.io.13, 10.1.30-root.io.3, 10.1.30-root.io.4, 10.1.30-root.io.5, 10.1.30-root.io.6, 10.1.30-root.io.7, 10.1.30-root.io.8, 10.1.30-root.io.9, 10.1.34-root.io.1, 10.1.34-root.io.2, 10.1.34-root.io.3, 10.1.34-root.io.5, 10.1.34-root.io.6, 10.1.34-root.io.7, 10.1.39-root.io.10, 10.1.39-root.io.11, 10.1.39-root.io.12, 10.1.39-root.io.13, 10.1.39-root.io.14, 10.1.39-root.io.15, 10.1.39-root.io.16, 10.1.39-root.io.17, 10.1.39-root.io.18, 10.1.39-root.io.19, 10.1.39-root.io.20, 10.1.39-root.io.5, 10.1.39-root.io.6, 10.1.39-root.io.7, 10.1.39-root.io.8, 10.1.39-root.io.9, 9.0.100-root.io.1, 9.0.100-root.io.2, 9.0.100-root.io.3, 9.0.99-root.io.2, 9.0.99-root.io.3, 9.0.99-root.io.4

jws5-tomcat

0:9.0.87-11.redhat_00010.1.el7jws, 0:9.0.87-11.redhat_00010.1.el8jws, 0:9.0.87-11.redhat_00010.1.el9jws

jws6-tomcat

0:10.1.36-6.redhat_00007.1.el8jws, 0:10.1.36-6.redhat_00007.1.el9jws

jws6-tomcat-jakartaee-migration

0:1.0.6-2.redhat_00003.1.el8jws, 0:1.0.6-2.redhat_00003.1.el9jws

jws6-tomcat-native

0:1.3.1-1.redhat_1.el8jws, 0:1.3.1-1.redhat_1.el9jws

libtomcat10-embed-java

10.1.16-1ubuntu0.1~esm3, 10.1.35-1ubuntu0.1

libtomcat10-java

10.1.16-1ubuntu0.1~esm3, 10.1.35-1ubuntu0.1

org.apache.tomcat:tomcat-coyote

10.1.40, 11.0.6, 9.0.104

org.apache.tomcat.embed:tomcat-embed-core

10.1.10+sp2, 10.1.16-aikido.10, 10.1.16-aikido.11, 10.1.16-aikido.12, 10.1.16-aikido.9, 10.1.30-aikido.10, 10.1.30-aikido.11, 10.1.30-aikido.12, 10.1.30-aikido.13, 10.1.30-aikido.7, 10.1.30-aikido.8, 10.1.30-aikido.9, 10.1.34-aikido.5, 10.1.34-aikido.6, 10.1.34-aikido.7, 10.1.39-aikido.16, 10.1.39-aikido.17, 10.1.39-aikido.18, 10.1.39-aikido.19, 10.1.39-aikido.20, 10.1.40, 11.0.6, 9.0.100-aikido.2, 9.0.100-aikido.3, 9.0.104, 9.0.99-aikido.3, 9.0.99-aikido.4

seal.sp1.org.apache.tomcat.embed:tomcat-embed-core

10.1.10+sp999

thingsboard

4.0.1-r1

tomcat-10

10.1.40-r0

tomcat-11

11.0.6-r0

tomcat-9

9.0.103-r0

tomcat-admin-webapps

1:9.0.87-1.el8_10.4, 1:9.0.87-3.el9_6.1, 9.0.104-1.1, 9.0.104-150200.81.1

tomcat-docs-webapp

1:9.0.87-1.el8_10.4, 1:9.0.87-3.el9_6.1, 9.0.104-1.1, 9.0.104-150200.81.1

tomcat-el-3_0-api

9.0.104-1.1, 9.0.104-150200.81.1

tomcat-el-3.0-api

1:9.0.87-1.el8_10.4, 1:9.0.87-3.el9_6.1

tomcat-embed

9.0.104-1.1, 9.0.104-150200.81.1

Timeline

Publicly disclosed
Apr 28, 2025
Last updated
Oct 8, 2026

Weakness Type

CWE-20 Improper Input Validation
CWE-459 Incomplete Cleanup
CWE-460 Improper Cleanup on Thrown Exception

References

15 more references in the full CVE brief

FAQ

Common Questions.

Improper Input Validation vulnerability in Apache Tomcat.
Affected: Tomcat (Apache) versions 11.0.0-milestone10, 11.0.0-milestone11, 11.0.0-milestone12, 11.0.0-milestone13, 11.0.0-milestone14, 11.0.0-milestone15, 11.0.0-milestone16, 11.0.0-milestone17; camunda-zeebe-8.6 (chainguard); thingsboard (chainguard), among others. The full list is in the CVE brief.
It is not listed in any known-exploited vulnerabilities catalog.
No, it is not currently listed in the CISA Known Exploited Vulnerabilities catalog.
Public exploit code is available.
Fixed versions are available, including Tomcat 9.0.104, Tomcat NA, Tomcat 1:9.0.87-1.el8_10.4.
Brandefense priority: patch immediately, because it is very likely to be exploited soon.

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