CVE-2026-71322: medium-severity vulnerability in Netflix lemur
Lemur: Missing authorization check on POST /certificates/<id>/export for plugins with requires_key = False
Published · Updated
E-mail alert when it lands in KEV, gets a public PoC or its score goes up.
13Vexday Risk Score
No sign of exploitation. No public exploitation artifact known so far.
ssvc Trackcvss 4.3epss 0.2%
Lemur manages TLS certificate creation. Prior to 1.9.3, CertificateExport placed its CertificatePermission ownership check inside the plugin.requires_key branch for POST /api/1/certificates//export. A plugin declaring requires_key false bypassed that check, and the handler still passed cert.private_key as an argument and recorded a key_view audit event. The bundled JavaTruststoreExportPlugin ignored the key, so the immediate exposure was limited to public certificate material and misleading audit entries, but a future plugin could have consumed the supplied key. The fix passes no private key to plugins that do not require one and confines ownership checks and key_view logging to actual private-key exports. This issue is fixed in version 1.9.3.
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N
Affected products
Netflix · lemurRelated CVEs — Netflix lemur
In the same product, most dangerous first.
CVE-2026-48508HIGHLemur: Authorization bypass in StrictRolePermission / AuthorityCreatorPermissionEPSS 0.3%CVE-2026-71308HIGHLemur: Unchecked `replaces[]` lets any user silence notifications and hijack auto-rotation for arbitrary certificatesEPSS 0.3%CVE-2026-71307HIGHLemur: Authenticated low-privilege users can read plaintext destination credentials (SFTP password / private-key passphrase) via the destinations APIEPSS 0.3%CVE-2026-55164MEDIUMLemur: Plaintext password storage in Lemur user-update pathEPSS 0.3%CVE-2026-55166CRITICALLemur: any SSO-authenticated user achieves AWS IAM compromise and permanent PKI key access via ACME acme_url SSRF and creator-equality IDOREPSS 0.3%CVE-2026-71303HIGHLemur: Incomplete fix for CVE-2026-55166 -- ACME authority update endpoint allows non-admin to replace `acme_url` with internal IP, bypassing allowlistEPSS 0.3%