Vulnerability RUSTSEC-2026-0451

Unknown
UNKNOWN RISK
Vulnerabilities without an assigned CVSS score. Severity is not determinable from available data.
8 hours ago
November 06, 2026 at 12:00 PM UTC
Degraded secret zeroization capabilities
>=0.0.0-0 <0.11.2
>=0.0.0-0 <0.11.2

Summary

Degraded secret zeroization capabilities

Details

In version 0.11.1 and earlier of vodozemac, the Olm root key ratchet did not zeroize its HKDF output after use. Each ratchet step left a copy of the new root key and chain key in freed heap memory.

Impact

An attacker who can read the process's memory, for example through a separate memory-disclosure bug, a core dump, or swapped-out pages, may recover root keys and chain keys from earlier ratchet steps. A leaked chain key allows decrypting the messages in that chain, weakening Olm's forward secrecy for affected sessions.

Impacted packages

Timeline

Published
8 hours ago
November 06, 2026 at 12:00 PM UTC
Last Modified
4 hours ago
November 06, 2026 at 03:45 PM UTC