CVE-2026-91201
DocsGPT through 0.20.0 OAuth Token Disclosure via Wildcard postMessage
CVSS 4.0 5.3 MEDIUMCVSS 3.1 5.4 MEDIUMCheck source for fixed versionsKEV status unknown
cve-program · CVE-2026-91201
PublishedDocsGPT through 0.20.0 posts OAuth connector session tokens to a wildcard target origin in the callback-status endpoint without validating sender origin. Attackers can obtain session tokens and provider account emails by acting as window.opener during OAuth authorization, then use tokens to disconnect victims' cloud storage connectors.
Read the publisher's advisoryAffected versions, risk and source history
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CVE-2026-91201 · CVE overview and exploitation status
cve-program · CVE-2026-91201
- https://github.com/arc53/DocsGPT/issues/2766
- https://github.com/arc53/DocsGPT
- https://github.com/arc53/DocsGPT/blob/c36b0af17037449f34449efa97da82becfc9492d/docsgpt/api/connector/routes.py#L515-L527
- https://github.com/arc53/DocsGPT/blob/c36b0af17037449f34449efa97da82becfc9492d/frontend/src/components/ConnectorAuth.tsx#L57-L80
- https://github.com/arc53/DocsGPT/blob/c36b0af17037449f34449efa97da82becfc9492d/docsgpt/api/connector/routes.py#L344-L366
- https://www.vulncheck.com/advisories/docsgpt-through-0.20.0-oauth-token-disclosure-via-wildcard-postmessage
Related changes
Linked by CVE identifierNo related changes are available here.