Advisory details:
github_osv / GHSA-qx8j-g322-qj6m
| Advisory ID | github_osv/GHSA-qx8j-g322-qj6m |
| Aliases |
CVE-2026-40037
|
| Summary | OpenClaw: `fetchWithSsrFGuard` replays unsafe request bodies across cross-origin redirects ## Impact `fetchWithSsrFGuard` replays unsafe request bodies across cross-origin redirects. A guarded fetch could resend unsafe request bodies or headers when following cross-origin redirects. OpenClaw is a user-controlled local assistant. This advisory is scoped to the OpenClaw trust model and does not assume a multi-tenant service boundary. ## Affected Packages / Versions - Package: `openclaw` (npm) - Affected versions: `<2026.3.31` - Patched versions: `2026.4.8` ## Fix The issue was fixed on `main` and is available in the patched npm version listed above. The verified fixed tree is commit `d7c3210cd6f5fdfdc1beff4c9541673e814354d5`. ## Verification The fix was re-checked against `main` before publication, including targeted regression tests for the affected security boundary. ## Credits Thanks @BG0ECV for reporting. |
| Status | Published |
| Exploitability | 0.5 |
| Weighted Severity | 6.7 |
| Risk | 3.4 |
| Affected and Fixed Packages | Package Details |
| Introduced and Fixed Package Commit Patches | Package Commit Patches Details |
| System | Score | Found at |
|---|---|---|
| cvssv4 | 7.4 | https://github.com/github/advisory-database/blob/main/advisories/github-reviewed/2026/04/GHSA-qx8j-g322-qj6m/GHSA-qx8j-g322-qj6m.json |
| generic_textual | HIGH |
No EPSS data available for this advisory.
| Patch URL | |
|---|---|
| There are no known patches. | |
| Attack Vector (AV) | Attack Complexity (AC) | Attack Requirements (AT) | Privileges Required (PR) | User Interaction (UI) | Vulnerable System Impact Confidentiality (VC) | Vulnerable System Impact Integrity (VI) | Vulnerable System Impact Availability (VA) | Subsequent System Impact Confidentiality (SC) | Subsequent System Impact Integrity (SI) | Subsequent System Impact Availability (SA) |
|---|---|---|---|---|---|---|---|---|---|---|
network adjacent local physical |
low high |
none present |
none low high |
none passive active |
high low none |
high low none |
high low none |
high low none |
high low none |
high low none |
Vector: SSVCv2/E:N/A:Y/T:P/P:M/B:A/M:M/D:T/2026-04-09T14:40:02Z/
Decision: Track
Source URL: https://github.com/cisagov/vulnrichment/blob/develop/2026/40xxx/CVE-2026-40037.json
Source Advisory: vulnrichment/CVE-2026-40037
[{'Exploitation': 'none'},
{'Automatable': 'yes'},
{'Technical Impact': 'partial'},
{'Mission Prevalence': 'minimal'},
{'Public Well-being Impact': 'material'},
{'Mission & Well-being': 'medium'}]