Reported

November 6, 2026

Issued

November 6, 2026

Package

vodozemac (crates.io)

Type

Vulnerability

Categories

• memory-exposure

Aliases

• GHSA-mxcm-mrw6-c446

References

• https://github.com/matrix-org/vodozemac/pull/448

Patched

• >=0.11.2

Unaffected

• <0.11.0

Description

Versions 0.11.0 and 0.11.1 of vodozemac have degraded secret zeroization capabilities, due to changes in third-party cryptographic dependencies (chacha-20poly1305, sha2, hmac), which moved secret zeroization capabilities behind a feature flag while vodozemac disabled the default feature set.

Impact

The degraded zeroization capabilities could result in the production of more memory copies of encryption secrets and secrets could linger in memory longer than necessary. This marginally increases the risk of sensitive data exposure.

Advisory available under CC0-1.0 license.