CVE catalog
CVE-2026-53440
Jenkins 2.567 and earlier, LTS 2.555.2 and earlier does not ensure that the "from" parameter in the "Delegate to servlet container" security realm is safe to redirect to after login, allowing attacker
- 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
- 0.23% · Oct 25, 2026
Jenkins 2.567 and earlier, LTS 2.555.2 and earlier does not ensure that the "from" parameter in the "Delegate to servlet container" security realm is safe to redirect to after login, allowing attackers to perform phishing attacks by redirecting users to an attacker-controlled domain.
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 | 2.568 | 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 | 2.568 | Not reported | GHSA-92M7-4FPW-2WXM | Not reported |
| Cpe | jenkins | cpe | Not reported | 2.568 | Not reported | NVD-CVE-2026-53440 | Not reported |
OpenFactory catalog packages
No matching packages in this catalog.
Observed:
References
- [https://github.com/advisories/GHSA-92m7-4fpw-2wxm]
- [https://nvd.nist.gov/vuln/detail/CVE-2026-53440]
- [https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-53440.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-3721]
[CERT-Bund public advisories] · [FIRST EPSS] · [GitHub Advisory Database] · [National Vulnerability Database (NVD)] · [Red Hat security advisories and VEX]