CVE-2026-115207 — Patch: filename validation bypass in reversal fallback allows file creation outside the working directory
A flaw was found in GNU patch. An attacker can achieve arbitrary file creation outside the intended working directory by enticing a user or automated workflow to apply a special…
Published: 2026-10-22 · CVSS: 5.5 · CVSS 3.1
A flaw was found in GNU patch. An attacker can achieve arbitrary file creation outside the intended working directory by enticing a user or automated workflow to apply a specially crafted patch file. Due to missing validation during automatic patch reversal, absolute file paths in patch headers are accepted rather than rejected. Consequently, the utility can create files in arbitrary locations with the permissions of the executing user.
Source: CVE Program · Revision 8b16575c39f1e1810c5e863010da073d2d3285e7