CVE-2026-71303

Lemur manages TLS certificate creation. Prior to 1.9.3, validateacmeurl enforced ACMEDIRECTORYHOSTALLOWLIST when an authority was created, but PUT /api/1/authorities/ passed options to lemur/authorities/service.py without applying the same check. A user holding an authority role could replace the...

Server-side Request Forgery (SSRF)

Overview lemur is a Certificate management and orchestration service Affected versions of this package are vulnerable to Server-side Request Forgery SSRF through the improper handling of user-supplied URLs in the acmeurl parameter, lack of access control in the certificate key-fetch process, and...

Lemur: ACME SSRF + creator-equality IDOR lead to AWS IAM/PKI compromise

Lemur 1.9.0: any SSO-authenticated user achieves AWS IAM compromise and permanent PKI key access via ACME acmeurl SSRF and creator-equality IDOR Vulnerability Summary Field | Value -- | -- Title | Lemur 1.9.0: any SSO-authenticated user achieves AWS IAM compromise and permanent PKI key access via...