CVE-2022-2191 Jetty SslConnection does not release pooled ByteBuffers in case of errors

What is CVE-2022-2191?

CVE-2022-2191 is a high-severity denial of service vulnerability in Eclipse Jetty, published on 7 Jul 2022. An attacker can exploit it over the internet without logging in, with no action from the victim.

Official description

In Eclipse Jetty versions 10.0.0 thru 10.0.9, and 11.0.0 thru 11.0.9 versions, SslConnection does not release ByteBuffers from configured ByteBufferPool in case of error code paths.

Weakness: CWE-664, CWE-404

Which versions are affected by CVE-2022-2191?

4 open source packages ship an affected version, including org.eclipse.jetty:jetty-server. It affects 1 product.

Products include Eclipse Jetty.

How do I fix CVE-2022-2191?

Upgrade org.eclipse.jetty:jetty-server to a fixed version for your release line: 10.0.10 or 11.0.10.

Upgrade, then put limits on request size, rate and nesting depth so one client cannot exhaust the service. More about Denial of service.

Is CVE-2022-2191 being exploited?

There is no known exploitation of CVE-2022-2191 in the wild and no public exploit code.

Other vulnerabilities in Eclipse Jetty

• CVE-2016-4800 Jetty contains an alias issue that could allow unauthenticated remote code execution due to specially crafted request Critical 9.8
• CVE-2019-17638 Operation on a Resource after Expiration or Release in Jetty Server Critical 9.4
• CVE-2018-12538 Access and integrity issue within Eclipse Jetty High 8.8
• CVE-2026-10050 Digest authentication lossy encoding High 8.7
• CVE-2025-5115 MadeYouReset HTTP/2 vulnerability High 7.7

All Eclipse Jetty vulnerabilities

Sources

• CVE record
• NVD
• OSV
• GitHub advisory
• How this page is made

Also known as GHSA-8mpp-f3f7-xc28, UBUNTU-CVE-2022-2191.