CVE-2026-91081

Description

Docs through 5.6.1 contains a server-side request forgery vulnerability in the cors-proxy endpoint that allows anonymous attackers to make outbound requests by providing a public document UUID. Attackers can exploit DNS time-of-check-time-of-use race conditions and shared address space bypasses to access internal network resources and exfiltrate image content.

References

• https://github.com/suitenumerique/docs
• https://github.com/suitenumerique/docs/blob/v5.6.1/src/backend/core/api/viewsets.py
• https://github.com/suitenumerique/docs/blob/v5.6.1/src/backend/core/models.py
• https://github.com/suitenumerique/docs/issues/2545
• https://www.vulncheck.com/advisories/docs-through-5.6.1-ssrf-via-unauthenticated-cors-proxy-endpoint