CVEvulnerability
CVE-2026-86259
9.0 CRITICAL
Official page ↗
- Status
- Deferred
- Published
- 2026-09-06
- Last modified
- 2026-09-10
- Assigner
- [email protected]
- CVSS 4.0 ([email protected])
- 9.0 CRITICAL — CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:H/VI:L/VA:N/SC:H/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
- CVSS 3.1 ([email protected])
- 7.5 HIGH — CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:H/I:L/A:N
- Weaknesses
- CWE-306, CWE-918
Description
OpenMAIC before 1.0.1 skips server-side request forgery validation in non-production builds, allowing unauthenticated attackers to reach cloud instance metadata services. Attackers can supply arbitrary provider URLs via the x-base-url header or baseUrl parameter to access sensitive cloud credentials and metadata.
Related
References
- https://github.com/THU-MAIC/OpenMAIC github.com
- https://github.com/THU-MAIC/OpenMAIC/blob/v1.0.0/app/api/generate/image/route.ts#L73-L78 github.com
- https://github.com/THU-MAIC/OpenMAIC/blob/v1.0.0/middleware.ts#L60-L63 github.com
- https://github.com/THU-MAIC/OpenMAIC/releases/tag/v1.0.1 github.com
- https://github.com/THU-MAIC/OpenMAIC/security/advisories/GHSA-9m7h-vh2h-rc3w github.com
- https://www.vulncheck.com/advisories/openmaic-before-1.0.1-ssrf-via-environment-gated-url-validation www.vulncheck.com
- https://github.com/THU-MAIC/OpenMAIC/security/advisories/GHSA-9m7h-vh2h-rc3w github.com