CVE-2026-34511
OpenClaw: Gemini OAuth exposed the PKCE verifier through the OAuth state parameter
描述
## Summary Before OpenClaw 2026.4.2, the Gemini OAuth flow reused the PKCE verifier as the OAuth `state` value. Because the provider reflected `state` back in the redirect URL, the verifier could be exposed alongside the authorization code. ## Impact Anyone who could capture the redirect URL could learn both the authorization code and the PKCE verifier, defeating PKCE's interception protection for that flow and enabling token redemption. ## Affected Packages / Versions - Package: `openclaw` (npm) - Affected versions: `<= 2026.4.1` - Patched versions: `>= 2026.4.2` - Latest published npm version: `2026.4.1` ## Fix Commit(s) - `a26f4d0f3ef0757db6c6c40277cc06a5de76c52f` — separate OAuth state from the PKCE verifier OpenClaw thanks @BG0ECV for reporting.
如何修補 CVE-2026-34511
要修補 CVE-2026-34511,請將受影響套件升級到下列已修補版本。
- —升級至 2026.4.2 或更新版本
CVE-2026-34511 正在被利用嗎?
低 — EPSS 為 0.2%,目前沒有觀察到大規模利用活動。
受影響套件(1)
- from 0, < 2026.4.2
CVSS 分數
| 來源 | 版本 | 嚴重程度 | 向量 |
|---|---|---|---|
| osv | CVSS 4.0 | — | CVSS:4.0/AV:N/AC:H/AT:P/PR:N/UI:A/VC:H/VI:N/VA:N/SC:H/SI:H/SA:N |