CVE-2026-70428 — MEDIUM (4.3)

Vulnerability Description

Jenkins 2.575 and earlier, LTS 2.568.1 and earlier improperly identifies file paths attempting path traversal in file parameter names, allowing attackers with Item/Configure and Item/Build permission to write files to arbitrary locations on the controller file system.

CVSS Score

4.3

MEDIUM

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

LOW

User Interaction

NONE

Scope

UNCHANGED

Confidentiality

NONE

Integrity

LOW

Availability

NONE

Related Weaknesses (CWE)

CWE-22

References

https://www.jenkins.io/security/advisory/2026-08-05/#SECURITY-3927

FAQ

What is CVE-2026-70428?

CVE-2026-70428 is a vulnerability with a CVSS score of 4.3 (MEDIUM). Jenkins 2.575 and earlier, LTS 2.568.1 and earlier improperly identifies file paths attempting path traversal in file parameter names, allowing attackers with Item/Configure and Item/Build permission ...

How severe is CVE-2026-70428?

CVE-2026-70428 has been rated MEDIUM with a CVSS base score of 4.3/10. Review the CVSS metrics above for detailed severity breakdown.

Is there a patch for CVE-2026-70428?

Check the references section above for vendor advisories and patch information. Review vendor security bulletins for remediation guidance.