Is CVE-2026-70428 being exploited?

No public exploit is currently tracked.

How severe is CVE-2026-70428?

CVE-2026-70428 has a CVSS v3 severity of MEDIUM (4.3).

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CVE-2026-70428

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.