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 en…

Code

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Timeline

Detection, updates, and resolution for this record.

1. Mar 18, 2026 · NIST NVD

   Detected

   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.

2. Jun 17, 2026 · NIST NVD

   Updated

   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.

Affected

• cpe jenkins/jenkinsversion unspecified

Sources

• CVE.orgVulnerability recordCVE-2026-33002

  Official CVE identifier

  cve.org
• NIST NVDVulnerability recordCVE-2026-33002

  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, m

  nvd.nist.gov

References

• Vendor Advisory · jenkins.io