CVE catalog
CVE-2026-53435
In Jenkins 2.567 and earlier, LTS 2.555.2 and earlier, it is possible for attackers to have Jenkins deserialize arbitrary types defined in Jenkins core or plugins from an attacker-controlled `config.x
- Severity
- High · CVSS 8.8
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H - Published
- Source
- [NVD] · [CVE record]
- EPSS
- 53.13% · Oct 25, 2026
A flaw was found in Jenkins. Attackers can exploit a deserialization vulnerability by submitting a specially crafted `config.xml` file. This allows them to deserialize arbitrary types, leading to the ability to impersonate users and send HTTP requests on their behalf. The most critical impact is the potential for arbitrary code execution through the Script Console, as well as unauthorized reading of files from the Jenkins controller. jenkins: Jenkins: Arbitrary code execution via deserialization of attacker-controlled configuration The CVSS score(s) listed for this vulnerability do not reflect the associated product's status, and are included for informational purposes to better understand the severity of this vulnerability.
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-G2XQ-2V27-4RH3 | Not reported |
| Cpe | jenkins | cpe | Not reported | 2.568 | Not reported | NVD-CVE-2026-53435 | Not reported |
OpenFactory catalog packages
No matching packages in this catalog.
Observed:
References
- [https://access.redhat.com/errata/RHSA-2026:60239]
- [https://access.redhat.com/errata/RHSA-2026:60246]
- [https://access.redhat.com/errata/RHSA-2026:60247]
- [https://access.redhat.com/errata/RHSA-2026:60248]
- [https://access.redhat.com/errata/RHSA-2026:60249]
- [https://access.redhat.com/errata/RHSA-2026:60250]
- [https://access.redhat.com/errata/RHSA-2026:60251]
- [https://access.redhat.com/errata/RHSA-2026:60252]
- [https://access.redhat.com/errata/RHSA-2026:60254]
- [https://access.redhat.com/errata/RHSA-2026:60256]
- [https://access.redhat.com/errata/RHSA-2026:60259]
- [https://access.redhat.com/security/cve/CVE-2026-53435]
- [https://bugzilla.redhat.com/show_bug.cgi?id=2487539]
- [https://github.com/advisories/GHSA-g2xq-2v27-4rh3]
- [https://nvd.nist.gov/vuln/detail/CVE-2026-53435]
- [https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-53435.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-3707]
[CERT-Bund public advisories] · [FIRST EPSS] · [GitHub Advisory Database] · [National Vulnerability Database (NVD)] · [Red Hat security advisories and VEX]