AI agent vulnerability · OpenClaw

CVE-2026-28477: OpenClaw Chutes manual OAuth state validation bypass can cause credential substitution

mediumCVSS 4.0 5.1 · 3.1 5.9GHSA-7rcp-mxpq-72pj

Summary The manual Chutes OAuth login flow could accept attacker-controlled callback input in a way that bypassed OAuth CSRF state validation, potentially resulting in credential substitution. Impact If an attacker can convince a user to paste attacker-provided OAuth callback data during the manual login prompt, OpenClaw may exchange an attacker-obtained authorization code and persist tokens for the wrong Chutes…

Published Feb 18, 2026 · Updated Mar 6, 2026

Affected packages

openclaw

Ecosystem: npm
Affected: < 2026.2.14
Fixed in: 2026.2.14
Check: npm ls openclaw

Advisory details

From the GitHub Advisory Database (CC BY 4.0).

Summary

The manual Chutes OAuth login flow could accept attacker-controlled callback input in a way that bypassed OAuth CSRF state validation, potentially resulting in credential substitution.

Impact

If an attacker can convince a user to paste attacker-provided OAuth callback data during the manual login prompt, OpenClaw may exchange an attacker-obtained authorization code and persist tokens for the wrong Chutes account.

The automatic local callback flow is not affected (it validates state in the local HTTP callback handler).

Affected Packages / Versions

openclaw (npm): <= 2026.2.13 when using the manual Chutes OAuth login flow.

Fix

The manual flow now requires the full redirect URL (must include code and state), validates the returned state against the expected value, and rejects code-only pastes.

Fix Commit(s)

a99ad11a4107ba8eac58f54a3c1a8a0cf5686f47

Thanks @aether-ai-agent for reporting.

References

How this page is made: the data panel comes from the GitHub Advisory Database, CISA’s KEV catalog, the NVD and FIRST EPSS, and updates twice a day. No analysis has been written for this entry yet. Methodology

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