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.
Attack Parameters
Attack Vector
Network
Can be exploited remotely
Attack Complexity
High
Difficult to exploit
Attack Requirements
None
No additional conditions
Privileges Required
Low
Basic privileges needed
User Interaction
None
No user interaction needed
Impact Assessment
Confidentiality
None
No data leak
Integrity
Low
Partial data modification
Availability
None
No disruption
CVSS Vector v4.0
Weakness Type (CWE)
Vulnerable Products 1
| Configuration | From (including) | Up to (excluding) |
|---|---|---|
|
Openclaw Openclaw
cpe:2.3:a:openclaw:openclaw:*:*:*:*:*:node.js:*:*
|
— |
2026.2.22
|
References 4
https://github.com/openclaw/openclaw/commit/73d93dee64127a26f1acd09d0403b794cde…
disclosure@vulncheck.com
https://github.com/openclaw/openclaw/commit/b34097f62df9d1960cc22600269cd3f3284…
disclosure@vulncheck.com
https://github.com/openclaw/openclaw/security/advisories/GHSA-w76h-8m22-hpgh
disclosure@vulncheck.com
https://www.vulncheck.com/advisories/openclaw-redirect-chain-bypass-of-media-ho…
disclosure@vulncheck.com