🛡️ GHSA-ch86-pxr9-j9h9 — openclaw (CVE-2026-34511)

⚪ Unknown ✅ No Known Exploit CWE-330 OSV
N/A
CVSS Score
0 Low4 Medium7 High9 Critical10

Description

Duplicate Advisory: OpenClaw: Gemini OAuth exposed the PKCE verifier through the OAuth state parameter

Duplicate Advisory

This advisory has been withdrawn because it is a duplicate of GHSA-9jpj-g8vv-j5mf. This link is maintained to preserve external references.

Original Description

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.

How this vulnerability can be exploited

This issue can be reached over the network, attack complexity is low, an attacker needs no privileges on the target. A user must be tricked into taking some action. The scope is unchanged, so the impact stays within the vulnerable component. Rated impact: confidentiality high, integrity none, availability none.

Weakness class

GHSA-ch86-pxr9-j9h9 is classified as CWE-330: Use of Insufficiently Random Values. Values that must be unpredictable are generated in a way an attacker can guess or reproduce.

Affected software

GHSA-ch86-pxr9-j9h9 is recorded against 1 package.

  • openclaw

Timeline and source

Published on 3 April 2026 and last revised on 7 April 2026. No public exploit is currently recorded for this entry. Record sourced from OSV.

References

github.com (Web)
nvd.nist.gov (Advisory)
github.com (Web)
www.vulncheck.com (Web)

Details

Severity Unknown
CVSS Score N/A
CVSS Vector CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:P/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
CWE CWE-330
Public Exploit ✅ No
Source OSV
Published 2026-04-03
Updated 2026-08-20
Modified 2026-04-07
Fix URL N/A

Affected Packages

Software From version Fixed in
openclaw — —

Similar Threats

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