CVE catalog
CVE-2026-53436
Jenkins 2.567 and earlier, LTS 2.555.2 and earlier improperly determines that a redirect URL after login is legitimately pointing to Jenkins when it contains relative path segments (`./` or `../`), al
- Severity
- Medium · CVSS 4.3
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:L/A:N - Published
- Source
- [NVD] · [CVE record]
- EPSS
- 0.28% · Oct 27, 2026
Jenkins 2.567 and earlier, LTS 2.555.2 and earlier improperly determines that a redirect URL after login is legitimately pointing to Jenkins when it contains relative path segments (`./` or `../`), allowing attackers to perform phishing attacks.
Vulnerable and fixed packages
Distribution-reported package versions and fixes. These do not depend on matching against the OpenFactory package catalog.
| Distribution | Package | Release | Version | Status |
|---|---|---|---|---|
| Cpe | jenkins | Not reported | 2.555.3 | fixed |
| Cpe | jenkins | Not reported | 2.568 | fixed |
| Maven | org.jenkins-ci.main:jenkins-core | Not reported | 2.555.3 | fixed |
| Cpe | jenkins | Not reported | 2.568 | fixed |
Fixed-version evidence
| Distribution | Package | Type | Release | Fixed version | Urgency | Origin | Bugs |
|---|---|---|---|---|---|---|---|
| Cpe | jenkins | cpe | Not reported | 2.555.3 | Not reported | Not reported | Not reported |
| Cpe | jenkins | cpe | Not reported | 2.568 | Not reported | Not reported | Not reported |
| Maven | org.jenkins-ci.main:jenkins-core | maven | Not reported | 2.555.3 | Not reported | GHSA-3RQH-HCH3-JHPC | Not reported |
| Cpe | jenkins | cpe | Not reported | 2.568 | Not reported | NVD-CVE-2026-53436 | Not reported |
OpenFactory catalog packages
No matching packages in this catalog.
Observed:
References
- [https://github.com/advisories/GHSA-3rqh-hch3-jhpc]
- [https://nvd.nist.gov/vuln/detail/CVE-2026-53436]
- [https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-53436.json]
- [https://wid.cert-bund.de/.well-known/csaf/white/2026/wid-sec-w-2026-1884.json]
- [https://www.jenkins.io/security/advisory/2026-06-10/#SECURITY-3711+3755]
[CERT-Bund public advisories] · [FIRST EPSS] · [GitHub Advisory Database] · [National Vulnerability Database (NVD)] · [Red Hat security advisories and VEX]