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Advisory record · GHSA-r8gc-qc2c-c7vh

Post-Quantum Secure Feldman's Verifiable Secret Sharing has Inadequate Fault Injection Countermeasures in `secure_redundant_execution`

CVSS 5.4 MediumEPSS 0.0018 · 8th percentile

Published by the GitHub Advisory Database at 14 Mar 2025, 19:55 UTC. agentprime has not analysed this yet, so whether it affects any app is not known.

PackageEcosystemAffectedFixed in
postquantum-feldman-vssPyPI<=0.8.0b2No fixed version yet
Identifiers
GHSA-r8gc-qc2c-c7vh · CVE-2025-29779
Weakness (CWE)
CWE-1240 · CWE-1279
Tags
Published
14 Mar 2025
Updated
10 Sept 2026

Machine-written summary

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

The postquantum-feldman-vss package, versions up to and including 0.8.0b2, has weak fault injection countermeasures in its secure_redundant_execution function. An attacker with physical access to the hardware could inject faults to bypass the redundancy checks, potentially extracting secret polynomial coefficients or getting invalid shares and commitments accepted. No fixed version is listed. The source suggests deploying in physically secured environments and using HSMs for key operations.

Written 5 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
5.4 Medium 4.0 CVSS:4.0/AV:P/AC:H/AT:P/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N CNA (GitHub_M)
  • CISA KEV Not listed.
  • EPSS 0.0018, the 8th percentile, on 5 Nov 2026: FIRST’s estimate of the chance of exploitation in the next 30 days.

Timeline

  1. 31 Oct 2026, 14:34 UTC First seen by agentprime
  2. 31 Oct 2026, 14:34 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.