high8.8
CVE-2026-33001
Jenkins has a link following vulnerability allows arbitrary file creation
Impact
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.
Affected packages
| Ecosystem | Package | Affected | Fixed in |
|---|---|---|---|
| maven | org.jenkins-ci.main:jenkins-core | <= 2.554 | 2.555 |
Affected products
| Vendor | Product | Affected versions |
|---|---|---|
| Jenkins | Jenkins | before 2.541.3 before 2.555 |
Weakness classification
References
- NVD record
- CVE.org record
- GitHub advisory
- https://www.jenkins.io/security/advisory/2026-03-18/#SECURITY-3657
- https://access.redhat.com/errata/RHSA-2026:10199
- https://access.redhat.com/errata/RHSA-2026:10201
- https://access.redhat.com/errata/RHSA-2026:10204
- https://access.redhat.com/errata/RHSA-2026:10205
- https://access.redhat.com/errata/RHSA-2026:10206
- https://access.redhat.com/errata/RHSA-2026:10209
- https://access.redhat.com/errata/RHSA-2026:10211
- https://access.redhat.com/errata/RHSA-2026:10213
- https://access.redhat.com/errata/RHSA-2026:10214
- https://access.redhat.com/errata/RHSA-2026:10215
- 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://github.com/advisories/GHSA-r6qv-frpc-q66c
- https://nvd.nist.gov/vuln/detail/CVE-2026-33001
- https://github.com/jenkinsci/jenkins/commit/6dc99937605d5bddfeaae43a4cd14c2571e23adc
- https://github.com/jenkinsci/jenkins/releases/tag/jenkins-2.555