CVE-2026-86259
critical · 9OpenMAIC 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.
9
CVSS
0.4%
EPSS (exploit prob.)
36th
EPSS percentile
2026-09-06
Published
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
Weaknesses
CWE-306CWE-918
References
- https://github.com/THU-MAIC/OpenMAIC
- https://github.com/THU-MAIC/OpenMAIC/blob/v1.0.0/app/api/generate/image/route.ts#L73-L78
- https://github.com/THU-MAIC/OpenMAIC/blob/v1.0.0/middleware.ts#L60-L63
- https://github.com/THU-MAIC/OpenMAIC/releases/tag/v1.0.1
- https://github.com/THU-MAIC/OpenMAIC/security/advisories/GHSA-9m7h-vh2h-rc3w
- https://www.vulncheck.com/advisories/openmaic-before-1.0.1-ssrf-via-environment-gated-url-validation
- https://github.com/THU-MAIC/OpenMAIC/security/advisories/GHSA-9m7h-vh2h-rc3w
Query this programmatically:
curl https://evil-db.io/api/v1/cve/CVE-2026-86259