CVE-2026-86259
HIGHCVSS 7.5Description
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.
Timeline
Published:September 6th, 2026 1:17 PM
Last modified:September 6th, 2026 1:17 PM
CVSS Scoring
CVSS v3: 7.5 (HIGH)
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:H/I:L/A:N
References & Reports
Advisories, patches, and third-party reports
- 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
Source: NIST NVD · Data may lag official sources by up to one minute