~ / search / GHSA-phhv-63fh-rrc8

GHSA-phhv-63fh-rrc8

Jenkins has a DNS rebinding vulnerability in WebSocket CLI origin validation

Source: GitHub Advisory Database (reviewed) High CVE-2026-33002

Packages

EcosystemPackageAffectedFixed in
Maven org.jenkins-ci.main:jenkins-core >= 2.442, < 2.555 2.555

Details

As written in the advisory (Markdown source, shown as plain text).

Jenkins 2.442 through 2.554 (both inclusive), LTS 2.426.3 through LTS 2.541.2 (both inclusive) performs origin validation of requests made through the CLI WebSocket endpoint by computing the expected origin for comparison using the Host or X-Forwarded-Host HTTP request headers, making it vulnerable to DNS rebinding attacks that allow bypassing origin validation.

References

External links from the advisory. They lead to third-party sites.