CVE-2026-70427
Last modified
CVE-2026-70427 is a medium-severity vulnerability rated 4.3/10 on the CVSS scale. Jenkins 2.575 and earlier, LTS 2.568.1 and earlier does not safely handle symbolic links with effectively empty names during the extraction of `.tar` and `.tar.gz` archives, allowing attackers able to control agent processes to provide crafted archives to the controller to write files to arbitrary locations on the file system, restricted only by file system access permissions of the user running Jenkins.. EPSS estimates a 0.25% chance of exploitation in the next 30 days.
Description
Jenkins 2.575 and earlier, LTS 2.568.1 and earlier does not safely handle symbolic links with effectively empty names during the extraction of `.tar` and `.tar.gz` archives, allowing attackers able to control agent processes to provide crafted archives to the controller to write files to arbitrary locations on the file system, restricted only by file system access permissions of the user running Jenkins.
Metrics
Weakness Enumeration
Affected Software
| Vendor | Product | Versions |
|---|---|---|
| Jenkins | Jenkins | < 2.568.2 |
| Jenkins | Jenkins | < 2.576 |
References
Timeline
- Published
- Last Modified
- Status
- Analyzed
Frequently Asked Questions
What is CVE-2026-70427?
How severe is CVE-2026-70427?
How do I fix CVE-2026-70427?
How Strix Helps
- How Strix found a critical auth bypass in etcdStrix autonomously discovered a critical authentication bypass in etcd, later designated CVE-2026-33413.
- Autonomous PentestingAI agents that find and validate exploitable vulnerabilities like this one across your applications.
- PR ReviewsPentest every pull request so vulnerable code is caught before it ships to production.
- AI Penetration TestingHow AI-driven penetration testing continuously covers your attack surface.
Related CVEs from 2026
- CVE-2026-70421Dell OpenManage Enterprise, versions prior to 4.7.0, contain…7.2
- CVE-2026-70422Dell OpenManage Enterprise, versions prior to 4.7.0, contain…8.8
- CVE-2026-70423Dell OpenManage Enterprise, versions prior to 4.7.0, contain…6.5
- CVE-2026-70424Dell OpenManage Enterprise, versions prior to 4.7.0, contain…6.5
- CVE-2026-70425Dell PowerScale OneFS, Versions 9.5.0.0 through 9.7.1.0, Ver…6.7
- CVE-2026-70426In Remoting 3384.v60d89463d9e0 and earlier, except 3355.3357…9
- CVE-2026-70428Jenkins 2.575 and earlier, LTS 2.568.1 and earlier improperl…4.3
- CVE-2026-70429Jenkins 2.575 and earlier, LTS 2.568.1 and earlier handles c…6.5
- CVE-2026-7043A vulnerability has been found in GreenCMS up to 2.3. This i…6.3
- CVE-2026-70430Jenkins 2.575 and earlier, LTS 2.568.1 and earlier does not …2.7
- CVE-2026-70431Jenkins Multijob Plugin 669.v9d96a_d9c71b_0 and earlier prov…8.8
- CVE-2026-70432A cross-site request forgery (CSRF) vulnerability in Jenkins…8.8
Are you affected by CVE-2026-70427?
Run a free Strix scan to check your systems for this vulnerability.
Scan your code nowSource: NVD / NIST