GHSA-g8pj-r55q-5c2v is a medium-severity (CVSS 5.3) CWE-459 vulnerability in org.apache.tomcat:tomcat. A fix is available for org.apache.tomcat:tomcat — see the affected versions and patch details below.
Exploitation Status
No confirmed exploitation observed yet
- CISA assesses this as automatable — exploitation doesn’t require manual, per-target effort, which raises the odds of mass scanning and opportunistic attacks.
- CISA’s own triage has not observed active exploitation or public proof-of-concept code for this CVE as of its last assessment.
Exploitation and automatability from CISA’s SSVC triage for GHSA-g8pj-r55q-5c2v.
EPSS Exploitation Probability
Probability of exploitation in the next 30 days, from FIRST.org EPSS.
How urgent is this, really
Where this sits among everything scored
Real-World Exposure
org.apache.tomcat:tomcat☕org.apache.tomcat:tomcat☕org.apache.tomcat:tomcat☕org.apache.tomcat:tomcat☕org.apache.tomcat.embed:tomcat-embed-core☕org.apache.tomcat.embed:tomcat-embed-core☕org.apache.tomcat.embed:tomcat-embed-core☕org.apache.tomcat.embed:tomcat-embed-core+8 moreReal-time download stats are indexed for npm and PyPI packages. This vulnerability affects Maven packages — download data is not available via public APIs for these ecosystems.
Description
Incomplete Cleanup vulnerability in Apache Tomcat.
When recycling various internal objects in Apache Tomcat from 11.0.0-M1 through 11.0.0-M11, from 10.1.0-M1 through 10.1.13, from 9.0.0-M1 through 9.0.80 and from 8.5.0 through 8.5.93, an error could cause Tomcat to skip some parts of the recycling process leading to information leaking from the current request/response to the next. Older, EOL versions may also be affected.
Users are recommended to upgrade to version 11.0.0-M12 onwards, 10.1.14 onwards, 9.0.81 onwards or 8.5.94 onwards, which fixes the issue.
Affected Packages
| Ecosystem | Package | Vulnerable range | Fix |
|---|---|---|---|
| ☕Maven | org.apache.tomcat:tomcat | ≥ 11.0.0-M1&&< 11.0.0-M12 | 11.0.0-M12org.apache.tomcat:tomcat:11.0.0-M12 |
| ☕Maven | org.apache.tomcat:tomcat | ≥ 10.1.0-M1&&< 10.1.14 | 10.1.14org.apache.tomcat:tomcat:10.1.14 |
| ☕Maven | org.apache.tomcat:tomcat | ≥ 9.0.0-M1&&< 9.0.81 | 9.0.81org.apache.tomcat:tomcat:9.0.81 |
| ☕Maven | org.apache.tomcat:tomcat | ≥ 8.5.0&&< 8.5.94 | 8.5.94org.apache.tomcat:tomcat:8.5.94 |
| ☕Maven | org.apache.tomcat.embed:tomcat-embed-core | ≥ 10.1.0-M1&&< 10.1.14 | 10.1.14org.apache.tomcat.embed:tomcat-embed-core:10.1.14 |
| ☕Maven | org.apache.tomcat.embed:tomcat-embed-core | ≥ 9.0.0-M1&&< 9.0.81 | 9.0.81org.apache.tomcat.embed:tomcat-embed-core:9.0.81 |
Affected Products
tomcatapachedebian linuxdebianDetection & mitigation playbook
Open-source dependencyDetect
Scan your dependency tree (package-lock.json, pnpm-lock.yaml, requirements.txt, go.sum, etc.) for org.apache.tomcat:tomcat, including transitive dependencies — a direct dependency you never call can still pull in a vulnerable version.
Fix
Update org.apache.tomcat:tomcat to 11.0.0-M12 or later, then make sure no transitive (indirect) dependency still pins the vulnerable range — O3 confirms GHSA-g8pj-r55q-5c2v is resolved across your whole dependency graph.
Workarounds
If you can't upgrade right away: gate or disable the affected feature, validate untrusted input at the boundary, and avoid passing attacker-controlled data into the vulnerable path. O3's runtime protection blocks exploitation in production as an interim safeguard until the upgrade lands.
Fixing This On Your OS
If you run this on a Linux distribution, patch through your package manager against the distro's own security advisory below — it tracks the exact backported fix for your release, which can ship on a different timeline (and sometimes a different severity) than the upstream project.
Red Hat rates this as a Moderate impact as the confidentiality is not fully compromised and the malicious user does not have confirmation over the scenario to replicate the error and capture the possible jeopardizing response.
No mitigation is currently available for this flaw.Source: Red Hat security advisory for GHSA-g8pj-r55q-5c2v (CC BY 4.0)
| Product | Fixed in | Advisory |
|---|---|---|
| Red Hat Enterprise Linux 10 | tomcat-1:10.1.36-1.el10_0 | RHSA-2025:7497 |
| Red Hat Enterprise Linux 8 | tomcat-1:9.0.62-27.el8_9.2 | RHSA-2024:0125 |
| Red Hat Enterprise Linux 8.8 Extended Update Support | tomcat-1:9.0.87-1.el8_8.2 | RHSA-2024:3814 |
| Red Hat Enterprise Linux 9 | tomcat-1:9.0.62-37.el9_3.1 | RHSA-2024:0474 |
| Red Hat Fuse 7.12.1 | tomcat | RHSA-2023:7247 |
| Red Hat JBoss Web Server 5 | tomcat | RHSA-2023:6207 |
| Red Hat JBoss Web Server 5.7 on RHEL 7 | jws5-tomcat-0:9.0.62-18.redhat_00016.1.el7jws | RHSA-2023:6206 |
Frequently Asked Questions
Is GHSA-g8pj-r55q-5c2v in your dependencies?
Find it across Maven, including transitive dependencies.