Untriaged
Permalink
CVE-2026-34511
5.3 MEDIUM
- CVSS version (CVSS): 3.1
- Attack Vector (AV): Network (N)
- Attack Complexity (AC): High (H)
- Privileges Required (PR): None (N)
- User Interaction (UI): Required (R)
- Scope (S): Unchanged (U)
- Confidentiality (C): High (H)
- Integrity (I): None (N)
- Availability (A): None (N)
- Modified Attack Vector (MAV): Network (N)
- Modified Attack Complexity (MAC): High (H)
- Modified Privileges Required (MPR): None (N)
- Modified User Interaction (MUI): Required (R)
- Modified Confidentiality (MC): High (H)
- Modified Scope (MS): Unchanged (U)
- Modified Integrity (MI): None (N)
- Modified Availability (MA): None (N)
Activity log
- Created suggestion
OpenClaw < 2026.4.2 - PKCE Verifier Exposure via OAuth State Parameter
OpenClaw before 2026.4.2 reuses the PKCE verifier as the OAuth state parameter in the Gemini OAuth flow, exposing it through the redirect URL. Attackers who capture the redirect URL can obtain both the authorization code and PKCE verifier, defeating PKCE protection and enabling token redemption.
References
-
GitHub Security Advisory (GHSA-9jpj-g8vv-j5mf) vendor-advisory
-
Patch Commit patch
-
https://www.vulncheck.com/advisories/openclaw-pkce-verifier-exposure-via-oauth-… third-party-advisory
Affected products
OpenClaw
- <2026.4.2
- ==2026.4.2
Package maintainers
-
@chrisportela Chris Portela <chris@chrisportela.com>