GHSA-r7m4-f9h5-gr79
LOWGHSA-r7m4-f9h5-gr79 is a low-severity (CVSS 3.1) Uncontrolled Resource Consumption vulnerability in org.eclipse.jetty:jetty-servlets. O3 Security confirms whether GHSA-r7m4-f9h5-gr79 is actually reachable in your code before you act, and blocks exploitation at runtime until you patch.
Eclipse Jetty's PushSessionCacheFilter can cause remote DoS attacks
Blast Radius
org.eclipse.jetty:jetty-servlets☕org.eclipse.jetty:jetty-servlets☕org.eclipse.jetty:jetty-servletsReal-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
Impact
Jetty PushSessionCacheFilter can be exploited by unauthenticated users to launch remote DoS attacks by exhausting the server’s memory.
Patches
Workarounds
The session usage is intrinsic to the design of the PushCacheFilter. The issue can be avoided by:
- not using the PushCacheFilter. Push has been deprecated by the various IETF specs and early hints responses should be used instead.
- reducing the reducing the idle timeout on unauthenticated sessions will reduce the time such session stay in memory.
- configuring a session cache to use session passivation, so that sessions are not stored in memory, but rather in a database or file system that may have significantly more capacity than memory.
References
Affected Packages
| Ecosystem | Package | Vulnerable range | Fix |
|---|---|---|---|
| ☕Maven | org.eclipse.jetty:jetty-servlets | ≥ 10.0.0&&< 10.0.18 | 10.0.18 |
| ☕Maven | org.eclipse.jetty:jetty-servlets | ≥ 11.0.0&&< 11.0.18 | 11.0.18 |
| ☕Maven | org.eclipse.jetty:jetty-servlets | ≥ 12.0.0&&< 12.0.4 | 12.0.4 |
Detection & mitigation playbook
Open-source dependencyDetect
Scan your dependency tree (package-lock.json, pnpm-lock.yaml, requirements.txt, go.sum, etc.) for org.eclipse.jetty:jetty-servlets. O3's reachability analysis confirms whether the vulnerable code path is actually invoked in your application, so you act on real exposure instead of every transitive match.
Fix
Update org.eclipse.jetty:jetty-servlets to 10.0.18 or later, then make sure no transitive (indirect) dependency still pins the vulnerable range — O3 confirms GHSA-r7m4-f9h5-gr79 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.
How O3 protects you
O3 pinpoints whether GHSA-r7m4-f9h5-gr79 is reachable in your code and exactly where to fix it, then blocks exploitation in production at runtime until the patched version is deployed.
Tailored to GHSA-r7m4-f9h5-gr79. Runtime protection reduces exposure until a permanent patch is applied and verified — it complements patching, it doesn't replace it.
Frequently Asked Questions
Is GHSA-r7m4-f9h5-gr79 in your dependencies?
O3 detects GHSA-r7m4-f9h5-gr79 across Maven dependencies and uses function-level reachability to confirm whether the vulnerable code path is actually reachable — not just present. No false positives.