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GHSA-r7m4-f9h5-gr79

LowCVSS 3.1 / 10
Published Oct 14, 2024·Last modified Nov 3, 2025
Affected Components(0)

No affected components available

Description

Impact

Jetty PushSessionCacheFilter can be exploited by unauthenticated users to launch remote DoS attacks by exhausting the server’s memory.

Patches

  • https://github.com/jetty/jetty.project/pull/9715
  • https://github.com/jetty/jetty.project/pull/9716

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

  • https://github.com/jetty/jetty.project/pull/10756
  • https://github.com/jetty/jetty.project/pull/10755
Risk Scores
Base Score
3.1

The vulnerability can be exploited over the network without needing physical access. It is difficult for an attacker to exploit this vulnerability and may require special conditions. An attacker needs basic access or low-level privileges. No user interaction is needed for the attacker to exploit this vulnerability. The impact is confined to the system where the vulnerability exists. There is a low impact on the availability of the system.

Threat Intelligence
2.9

Limited exploitation activity has been observed. Close monitoring and planned remediation are recommended.

EPSS
0.94%

The exploit probability is very low. The vulnerability is unlikely to be exploited in the next 30 days.

Exploit
Not available

We did not find any exploit available. Neither in GitHub repositories nor in the Exploit-Database.

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Low severity
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