CVE-2026-42523 json
Jenkins GitHub Plugin has an XSS vulnerability
published 6mo ago modified 14d ago also EUVD-2026-26225 , GHSA-w22p-4x9f-486v
- cvss
- 9.0
- version 3.1, CNA
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 0.3%
- EPSS 0.3% chance of exploitation in 30 days, percentile 20%
- public exploits
- 0
- none known
Summary
Jenkins GitHub Plugin 1.46.0 and earlier improperly processes the current job URL as part of JavaScript implementing validation of the feature "GitHub hook trigger for GITScm polling", resulting in a stored cross-site scripting (XSS) vulnerability exploitable by non-anonymous attackers with Overall/Read permission.
Patch / fix
- maven com.coravy.hudson.plugins.github:github 1.46.0.1
- com.coravy.hudson.plugins.github github 1.46.0.1
- jenkins github 1.46.0.1
Is CVE-2026-42523 in your dependencies? Fencer shows which of your repositories are affected as soon as an advisory lands, and opens the fix as a pull request.
Check with FencerCISA SSVC
- Exploitation
- none
- Automatable
- no
- Technical impact
- total
- Assessed
- 6mo ago
Exploit prediction
0.28% chance of exploitation in the next 30 days, higher than 20% of all scored CVEs (FIRST EPSS, 2026-11-09).
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| CISA ADP | 3.1 | 9.0 | CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:H/I:H/A:H |
| GitHub | 3.1 | 9.0 | CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:H/I:H/A:H |
| CNA | 3.1 | 9.0 | CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:H/I:H/A:H |
Affected packages
| ecosystem | package | affected | fixed in |
|---|---|---|---|
| maven | com.coravy.hudson.plugins.github:github | <1.46.0.1 |
1.46.0.1 |
Affected products
- Jenkins Project Jenkins GitHub Plugin
Classification
- Weakness
-
- CWE-79 Improper Neutralization of Input During Web Page Generation
References
-
jenkins.io
/security/advisory/2026-04-29/#SECURITY-3704
vendor-advisory, web
-
nvd.nist.gov
/vuln/detail/CVE-2026-42523
advisory
-
github.com
/jenkinsci/github-plugin
package
Sources
- CVE List CVE-2026-42523
- GitHub Advisory GHSA-w22p-4x9f-486v
- NVD CVE-2026-42523
Fencer Intel keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.
CPEs and fixed versions use Anchore's correction of NVD's data: Added CPE configurations because not yet analyzed by NVD.