OpenClaw's MSTeams attachment redirect handling could bypass configured media host allowlists

Summary

In OpenClaw MSTeams media download flows, redirect handling could bypass configured mediaAllowHosts checks in specific attachment paths. Redirect chains were not consistently constrained to allowlisted targets before accepting fetched content.

Affected Packages / Versions

• Package: openclaw (npm)
• Affected versions: <= 2026.2.21-2 (latest published at triage time)
• Fixed in: 2026.2.22 (planned next release)

Impact

Attackers able to supply or influence attachment URLs could force redirect chains to non-allowlisted targets, weakening SSRF boundary controls for MSTeams media ingestion.

Fix Commit(s)

• 73d93dee64127a26f1acd09d0403b794cdeb4f5c
• b34097f62df9d1960cc22600269cd3f3284e2124

Release Process Note

patched_versions is pre-set to the planned next release (2026.2.22). Once that npm release is published, this advisory can be published without further version-field edits.

OpenClaw thanks @tdjackey for reporting.