CVE-2026-28481

Summary

OpenClaw versions 2026.1.30 and earlier, contain an information disclosure vulnerability, patched in 2026.2.1, in the MS Teams attachment downloader (optional extension must be enabled) that leaks bearer tokens to allowlisted suffix domains. When retrying downloads after receiving 401 or 403 responses, the application sends Authorization bearer tokens to untrusted hosts matching the permissive suffix-based allowlist, enabling token theft.

Affected Software

VendorProductVersion RangeStatus
OpenClawOpenClaw0 <= 2026.1.30affected
OpenClawOpenClaw2026.2.1unaffected

Weaknesses

  • CWE-201: Insertion of Sensitive Information Into Sent Data

ADP Enrichment

CISA ADP Vulnrichment

  • SSVC:
  • Exploitation: none
    • Automatable: no
    • Technical Impact: partial

References