Netflix lemur
Published Atomicorp research notes for CVEs affecting Netflix lemur where WAF protections were observed during testing or engineering review.
These notes are not intended to represent the full set of vulnerabilities mitigated by Atomicorp products and should not be interpreted as a coverage matrix, certification list, or census of protected CVEs.
Atomicorp WAF protections are primarily designed around attack techniques and exploit behaviors rather than individual vulnerability identifiers. A published research note documents a positive research finding related to that CVE. If a CVE is absent from these notes, no conclusion should be drawn about protection status.
| CVE | Vulnerability | CVSS | Severity | Rules Observed |
|---|---|---|---|---|
| CVE-2026-55166 | Lemur: any SSO-authenticated user achieves AWS IAM compromise and permanent PKI key access via ACME acme_url SSRF and cr | 9.9 (v3.1) | Critical | 337109 , 337110 , 340162 , 340163 , 344360 , 398021 , 398022 |
| CVE-2026-71303 | Lemur: Incomplete fix for CVE-2026-55166 – ACME authority update endpoint allows non-admin to replace acme_url with i | 7.7 (v3.1) | High | 337109 , 337110 , 340163 , 344360 , 398021 , 398022 |
| CVE-2026-70666 | Lemur: Server-Side Request Forgery via the ACME client following server-controlled URLs | 7.4 (v3.1) | High | 337109 , 337110 , 344360 , 398021 , 398022 |
| CVE-2026-70667 | Lemur: SSRF protection in certificate revocation checking bypassable via HTTP redirects and DNS rebinding (incomplete fi | 6.3 (v3.1) | Medium | 337109 , 337110 , 340162 , 340163 , 344360 , 398021 , 398022 |