OpenClaw before 2026.5.28 contains a race condition in the MS Teams safeFetch DNS rebinding check. When the affected feature is enabled and reachable, a lower-trust caller or configured input path could win a timing window between the DNS validation check and use, allowing actions that should have required a stronger authorization or policy check. Practical impact depends on the operator's configuration and whether lower-trust input can reach that path.
https://www.vulncheck.com/advisories/openclaw-authentication-bypass-via-safefetch
https://github.com/openclaw/openclaw/security/advisories/GHSA-wxm8-ghhq-q688
Published: 2026-07-17
Updated: 2026-07-17
Base Score: 5.6
Vector: CVSS2#AV:N/AC:H/Au:S/C:C/I:P/A:N
Severity: Medium
Base Score: 7.1
Vector: CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:C/C:H/I:L/A:N
Severity: High
Base Score: 5.1
Vector: CVSS:4.0/AV:N/AC:H/AT:P/PR:L/UI:N/VC:N/VI:N/VA:N/SC:H/SI:L/SA:N
Severity: Medium