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Advisory record · GHSA-fp52-qw33-mfmw

Authentication Bypass by Spoofing and Insufficient Verification of Data Authenticity in Hashicorp Vault

CVSS 8.2 HighEPSS 0.015 · 74th percentile

Published by the GitHub Advisory Database at 2 Aug 2021, 17:11 UTC. agentprime has not analysed this yet, so whether it affects any app is not known.

PackageEcosystemAffectedFixed in
github.com/hashicorp/vaultGo>=0.8.1, <1.2.5 || >=1.3.0, <1.3.8 || >=1.4.0, <1.4.4 || >=1.5.0, <1.5.11.2.5, 1.3.8, 1.4.4, 1.5.1
Identifiers
GHSA-fp52-qw33-mfmw · BIT-vault-2020-16250 · CVE-2020-16250 · GO-2022-0825
Weakness (CWE)
CWE-290 · CWE-345
Tags
Published
2 Aug 2021
Updated
10 Sept 2026

Machine-written summary

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

HashiCorp Vault versions from 0.8.1 up to (not including) 1.2.5, from 1.3.0 up to 1.3.8, from 1.4.0 up to 1.4.4, and 1.5.0 are affected when configured with the AWS IAM auth method. The source gives few details on how the bypass works, but it is an authentication bypass that involves spoofing and insufficient verification of data authenticity. Upgrade to 1.2.5, 1.3.8, 1.4.4, or 1.5.1, depending on your release line.

Written 6 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
8.2 High 3.1 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:H/A:N GitHub Advisory Database
  • CISA KEV Not listed.
  • EPSS 0.015, the 74th percentile, on 11 Nov 2026: FIRST’s estimate of the chance of exploitation in the next 30 days.

Timeline

  1. 31 Oct 2026, 14:45 UTC First seen by agentprime
  2. 31 Oct 2026, 14:45 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.