phi 0.1.1 through 0.28.4 contains an improper link resolution vulnerability that allows malicious repositories to bypass workspace_only_writes by exploiting lexical-only path checks in the permission gate. Attackers can commit symlinks pointing outside the workspace and use prompt injection to make the write tool write attacker-influenced content to external files without approval.
https://hackmd.io/@haind/phi-symlink-permission-boundary
Published: 2026-10-10
Updated: 2026-10-10
Base Score: 4
Vector: CVSS2#AV:L/AC:H/Au:N/C:N/I:C/A:N
Severity: Medium
Base Score: 4.7
Vector: CVSS:3.1/AV:L/AC:H/PR:N/UI:R/S:U/C:N/I:H/A:N
Severity: Medium
Base Score: 5.7
Vector: CVSS:4.0/AV:L/AC:L/AT:P/PR:N/UI:P/VC:N/VI:H/VA:N/SC:N/SI:N/SA:N
Severity: Medium
EPSS: 0.00172