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Advisory record · GHSA-45x7-px36-x8w8

Prefix Truncation Attack against ChaCha20-Poly1305 and Encrypt-then-MAC aka Terrapin

CVSS 5.9 MediumEPSS 0.94 · 99th percentile

Published by the GitHub Advisory Database at 18 Dec 2023, 19:22 UTC. agentprime has not analysed this yet, so whether it affects any app is not known.

PackageEcosystemAffectedFixed in
russhcrates.io<0.40.20.40.2
golang.org/x/cryptoGo>=0.1.0, <0.17.0 || <0.0.0-20231218163308-9d2ee975ef9f0.17.0, 0.0.0-20231218163308-9d2ee975ef9f
paramikoPyPI>=2.5.0, <3.4.03.4.0
Identifiers
GHSA-45x7-px36-x8w8 · CVE-2023-48795 · GO-2023-2402 · PYSEC-2026-1758
Weakness (CWE)
CWE-345 · CWE-354
Tags
Published
18 Dec 2023
Updated
10 Sept 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
5.9 Medium 3.1 CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:H/A:N GitHub Advisory Database
  • CISA KEV Not listed.
  • EPSS 0.94, the 99th percentile, on 6 Nov 2026: FIRST’s estimate of the chance of exploitation in the next 30 days.

Timeline

  1. 31 Oct 2026, 14:15 UTC First seen by agentprime
  2. 31 Oct 2026, 14:15 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.