CVE-2026-61500
CRITICAL
NVD
CVSS Score
9.8
Severity
CRITICAL
Published
Jul 13, 2026
Vendor
unknown
Description
Rejetto HFS 3.0.0 through 3.2.0 derives its session-cookie signing key from the non-cryptographic Math.random() generator and discloses outputs of the same generator to unauthenticated clients during login. A remote attacker can collect a small number of login responses, reconstruct the generator's state, recover the signing key, and forge a valid administrator session cookie, leading to full administrative access and remote code execution via the server_code configuration feature.