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crates.io package

clatter

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1 actionable advisory, newest first. Withdrawn advisories and news are excluded. Coverage is partial.

  1. High, CVSS 8.0crates.ioPublished

    Clatter has a PSK Validity Rule Violation issue

    CVE-2026-24785 · GHSA-253q-9q78-63x4

    Affected
    • crates.io clatter < 2.2.0
    Fixed in
    2.2.0· Vendor fix available
    Issue
    Impact Protocol compliance vulnerability. The library allowed post-quantum handshake patterns that violated the PSK validity rule (Noise Protocol Framework Section 9.3). This could allow PSK-derived keys to be used for encryption without proper randomization by self-chosen ephemeral randomness, weakening security guarantees and potentially allowing catastrophic key reuse. Affected default patterns include noisepqkkpsk0, noisepqknpsk0, noisepqnkpsk0, noisepqnnpsk0, and some hybrid variants. Users of these patterns may have been using handshakes that do not meet the intended security properties. Patches The issue is fully patched and released in Clatter v2.2.0. The fixed version includes runtime checks to detect offending handshake patterns. Workarounds Avoid using offending psk0 variants of post-quantum patterns. Review custom handshake patterns carefully. Resources PSK validity rule

    Recommended action: Upgrade to 2.2.0 or later, then redeploy and verify.A vendor fix does not resolve your finding until you verify it in your own systems.

    Sources:github.comSource checked Evidence →