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Advisory record · GHSA-vq4h-9ghm-qmrr

HashiCorp Vault's implementation of Shamir's secret sharing vulnerable to cache-timing attacks

CVSS 5.0 MediumEPSS 0.0021 · 11th percentile

Published by the GitHub Advisory Database at 30 Mar 2023, 03:30 UTC. agentprime has not analysed this yet, so whether it affects any app is not known.

PackageEcosystemAffectedFixed in
github.com/hashicorp/vaultGo<1.11.9 || >=1.12.0, <1.12.5 || >=1.13.0, <1.13.11.11.9, 1.12.5, 1.13.1
Identifiers
GHSA-vq4h-9ghm-qmrr · BIT-vault-2023-25000 · CVE-2023-25000 · GO-2023-1709
Weakness (CWE)
CWE-203 · CWE-208
Tags
Published
30 Mar 2023
Updated
10 Sept 2026

Machine-written summary

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

HashiCorp Vault versions before 1.11.9, from 1.12.0 before 1.12.5, and from 1.13.0 before 1.13.1 are affected. An attacker who can observe a large number of unseal operations on the host through a cache-timing side channel may narrow the search space for recovering Shamir key shares. Upgrade to Vault 1.11.9, 1.12.5, or 1.13.1, depending on your release line.

Written 2 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
5.0 Medium 3.1 CVSS:3.1/AV:L/AC:H/PR:H/UI:R/S:C/C:H/I:N/A:N CNA (HashiCorp)
  • CISA KEV Not listed.
  • EPSS 0.0021, the 11th percentile, on 6 Nov 2026: FIRST’s estimate of the chance of exploitation in the next 30 days.

Timeline

  1. 31 Oct 2026, 14:16 UTC First seen by agentprime
  2. 31 Oct 2026, 14:16 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.