CVE-2026-86259
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.
Scoring
- Severity
- CRITICAL
- CVSS base score
- 9
- CVSS vector
- 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
- EPSS probability
- 0.25%
- CWE
- CWE-918, CWE-306
- Published
- 2026-09-06
- Last modified
- 2026-09-11
Affected products
- THU-MAIC OpenMAIC
- THU-MAIC OpenMAIC
Weakness type
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