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Advisory record · GHSA-fwjg-cm92-j3hj

Pre-shared key mode transmits the TGK in cleartext, exposing the SRTP master key

CVSS 9.1 CriticalCritical

Critical, because:

  • CVSS score 9.1: 9.0 or more.

How we decide what’s critical

Published by the GitHub Advisory Database at 9 Oct 2026, 12:00 UTC. agentprime has not analysed this yet, so whether it affects any app is not known.

PackageEcosystemAffectedFixed in
mykeycrates.io>=0.0.0-0, <2.0.02.0.0
Identifiers
GHSA-fwjg-cm92-j3hj · RUSTSEC-2026-0335
Published
9 Oct 2026
Updated
12 Oct 2026

Machine-written summary

Summary written by Claude Haiku from the source advisory. Not reviewed by a person.

Pre-shared key mode in the mykey crate, versions before 2.0.0, sends the TEK Generation Key in cleartext, which exposes the SRTP master key. An attacker who can read a PSK-Init message, such as a passive listener on the media network, can recover the key without knowing the pre-shared key and can also forge message MACs. Upgrade to mykey 2.0.0, and upgrade both ends of an exchange together because the wire format changed. Alternatively, use ephemeral Diffie-Hellman mode instead of pre-shared key mode.

Written 3 Nov 2026.

Not analysed yet

We haven’t published our analysis of this Advisory yet. Once a person has reviewed it, this page will say what’s vulnerable, what has to be true for your app to be affected, and how to check.

Severity and exploitation

ScoreRatingCVSSVectorSource
9.1 Critical 3.1 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N OSV
  • CISA KEV Not listed.
  • EPSS No score.

Timeline

  1. 31 Oct 2026, 14:24 UTC First seen by agentprime
  2. 31 Oct 2026, 14:24 UTC Confirmed by OSV

Sources

Facts on this page come from the GitHub Advisory Database (CC-BY 4.0), OSV and the other sources listed, as published. We don’t reproduce full advisory descriptions, which can contain exploit code.