CVE-2026-84673
Last modified
CVE-2026-84673 is a high-severity vulnerability rated 8.8/10 on the CVSS scale. Jenkins Customizable Header Plugin 295.v2544b_ca_19b_97 and earlier allows overwriting the plugin's appearance configuration through Stapler data binding, allowing attackers to configure a custom SVG icon containing inline JavaScript, resulting in a stored cross-site scripting (XSS) vulnerability.. EPSS estimates a 0.29% chance of exploitation in the next 30 days.
Description
Jenkins Customizable Header Plugin 295.v2544b_ca_19b_97 and earlier allows overwriting the plugin's appearance configuration through Stapler data binding, allowing attackers to configure a custom SVG icon containing inline JavaScript, resulting in a stored cross-site scripting (XSS) vulnerability.
Metrics
Weakness Enumeration
Affected Software
Source: CNA advisory (CVE.org). NVD analysis pending.
| Vendor | Product | Versions |
|---|---|---|
| Jenkins Project | Jenkins Customizable Header Plugin | <= 295.v2544b_ca_19b_97 |
References
Timeline
- Published
- Last Modified
- Status
- Awaiting Analysis
Frequently Asked Questions
What is CVE-2026-84673?
How severe is CVE-2026-84673?
How do I fix CVE-2026-84673?
How Strix Helps
- How Strix found a critical auth bypass in etcdStrix autonomously discovered a critical authentication bypass in etcd, later designated CVE-2026-33413.
- Autonomous PentestingAI agents that find and validate exploitable vulnerabilities like this one across your applications.
- PR ReviewsPentest every pull request so vulnerable code is caught before it ships to production.
- AI Penetration TestingHow AI-driven penetration testing continuously covers your attack surface.
Related CVEs from 2026
- CVE-2026-84668Jenkins SAML Plugin 4.618.v441a_27fa_46d2 and earlier allows…8.8
- CVE-2026-84669A path traversal vulnerability in Jenkins Allure Plugin 2.35…8.8
- CVE-2026-8467Code Injection vulnerability in phenixdigital phoenix_storyb…9.5
- CVE-2026-84670Jenkins Performance Plugin 1015.v09ca_52b_3370e and earlier …8.8
- CVE-2026-84671Jenkins File Parameter Plugin 425.v3fa_801681b_5e and earlie…8.8
- CVE-2026-84672Jenkins Microsoft Entra ID (previously Azure AD) Plugin 710.…8.8
- CVE-2026-84674Missing permission checks in Jenkins XebiaLabs XL Deploy Plu…5.4
- CVE-2026-84675OS command injection vulnerability in Jenkins TICS Plugin 20…7.4
- CVE-2026-84676Jenkins Parameterized Remote Trigger Plugin 3.2.2 and earlie…4.3
- CVE-2026-84677Jenkins update-center2 3.18.3 and earlier does not escape pl…5.4
- CVE-2026-8468Allocation of Resources Without Limits or Throttling vulnera…8.2
- CVE-2026-84685The react-native-auth0 SDK's web platform implementation doe…6.5
Are you affected by CVE-2026-84673?
Run a free Strix scan to check your systems for this vulnerability.
Scan your code nowSource: NVD / NIST