CVE-2026-33001
Jenkins Project Jenkins
HIGH 8.8
At a glance
- Source
- NVD
- EPSS
- EPSS 2.07 % · percentile 81 ()
- State
- PUBLISHED
- Published
- Updated
- Assigner
- jenkins
- NVD status
- Modified
Description
Jenkins 2.554 and earlier, LTS 2.541.2 and earlier does not safely handle symbolic links during the extraction of .tar and .tar.gz archives, allowing crafted archives to write files to arbitrary locations on the filesystem, restricted only by file system access permissions of the user running Jenkins. This can be exploited to deploy malicious scripts or plugins on the controller by attackers with Item/Configure permission, or able to control agent processes.
Weaknesses (CWE)
- CWE-59 — Improper Link Resolution Before File Access
- CWE-22 — Improper Limitation of a Pathname to a Restricted Directory
References
- https://www.jenkins.io/security/advisory/2026-03-18/#SECURITY-3657
- https://access.redhat.com/security/cve/CVE-2026-33001
- https://bugzilla.redhat.com/show_bug.cgi?id=2448645
- https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-33001.json
- https://access.redhat.com/errata/RHSA-2026:10209
- https://access.redhat.com/errata/RHSA-2026:10201
- https://access.redhat.com/errata/RHSA-2026:10211
- https://access.redhat.com/errata/RHSA-2026:10204
- https://access.redhat.com/errata/RHSA-2026:10214
- https://access.redhat.com/errata/RHSA-2026:10213
- https://access.redhat.com/errata/RHSA-2026:10215
- https://access.redhat.com/errata/RHSA-2026:10206
- https://access.redhat.com/errata/RHSA-2026:10205
- https://access.redhat.com/errata/RHSA-2026:10199
Scores
| Version | Score | Vector | Scored by |
|---|---|---|---|
| CVSS 3.1 | HIGH 8.8 | CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H | CISA-ADP |
| CVSS 3.1 | HIGH 8.8 | CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H | redhat-SADP |
| CVSS 3.1 | HIGH 8.8 | CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H | NVD · 134c704f-9b21-4f2e-91b3-4a467353bcc0 (Secondary) |
| CVSS 3.1 | HIGH 8.8 | CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H | NVD · 0b0ca135-0b70-47e7-9f44-1890c2a1c46c (Secondary) |
Advisories
- GHSA-r6qv-frpc-q66c — Jenkins has a link following vulnerability allows arbitrary file creation
European references
- ENISA EUVD · EUVD-2026-12843
- GCVE · GCVE-0-2026-33001
Affected configurations (NVD CPE)
cpe:2.3:a:jenkins:jenkins:*:*:*:*:lts:*:*:*< 2.541.3cpe:2.3:a:jenkins:jenkins:*:*:*:*:-:*:*:*< 2.555
Affected products
| Product | Versions |
|---|---|
| Jenkins Project · Jenkins | unaffected 2.555 < * ; unaffected 2.541.3 < 2.541.* |
Sources
| Source | Licence |
|---|---|
| CVE List (CVEProject cvelistV5) | CVE Program Terms of Use |
| EPSS (FIRST.org) | FIRST — attribution requested |
| ENISA EUVD | ENISA — reproduction authorised, source acknowledged |
| NVD (NIST) via fkie-cad/nvd-json-data-feeds | Public domain — this product uses data from the NVD API but is not endorsed or certified by the NVD |