CVE-2026-61500 — Rejetto HFS < 3.2.1 Session Forgery via Predictable Signing Key
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 unauthen…
Published: 2026-07-13 · CVSS: 9.3 · CVSS 4.0
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.
Source: CVE Program · Revision 8b16575c39f1e1810c5e863010da073d2d3285e7