In Stapler 1839.ved17667b_a_eb_5 through 2107.v8dfcb_e8ed317 (both inclusive), except 2088.2093.vd7c3e58008a_6, included in Jenkins 2.447 through 2.579 (both inclusive), LTS 2.452.1 through 2.568.2 (both inclusive), an HTTP endpoint serving dynamically generated JavaScript resources embeds the user's cross-site request forgery (CSRF) token (crumb) as a string literal, allowing attackers with control over a page hosted on the same site as Jenkins to obtain a valid crumb for the targeted user's session and perform actions on their behalf.
| Product | Vendor Advisory | Solution File | Added | Published |
|---|---|---|---|---|
| Freebsd | — | Upgrade jenkinsUpgrade jenkins-lts | Sep 7, 2026 | Sep 2, 2026 |
| Jenkins 2026 09 02 | — | Upgrade Jenkins LTS to version 2.568.3Upgrade Jenkins to version 2.580Upgrade Jenkins LTS to the latest versionUpgrade Jenkins to the latest version | Sep 3, 2026 | Sep 2, 2026 |
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