OpenClaw versions prior to 2026.2.22 fail to consistently validate redirect chains against configured mediaAllowHosts allowlists during MSTeams media downloads. Attackers can supply or influence attachment URLs to force redirects to non-allowlisted targets, bypassing SSRF boundary controls.
https://github.com/openclaw/openclaw/security/advisories/GHSA-w76h-8m22-hpgh
https://github.com/openclaw/openclaw/commit/b34097f62df9d1960cc22600269cd3f3284e2124
https://github.com/openclaw/openclaw/commit/73d93dee64127a26f1acd09d0403b794cdeb4f5c
Published: 2026-03-19
Updated: 2026-03-23
Base Score: 6.8
Vector: CVSS2#AV:N/AC:L/Au:S/C:N/I:C/A:N
Severity: Medium
Base Score: 6.5
Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N
Severity: Medium
Base Score: 2.3
Vector: CVSS:4.0/AV:N/AC:H/AT:N/PR:L/UI:N/VC:N/VI:L/VA:N/SC:L/SI:L/SA:L
Severity: Low
EPSS: 0.00036