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HIGH severity

Authentication Bypass by Spoofing and Insufficient Verification of Data Authenticity in Hashicorp VaultGHSA-fp52-qw33-mfmw

HIGH

GHSA-fp52-qw33-mfmw is a high-severity (CVSS 8.2) CWE-290 vulnerability in github.com/hashicorp/vault. A fix is available for github.com/hashicorp/vault — see the affected versions and patch details below.

Also known asBIT-vault-2020-16250CVE-2020-16250GO-2022-0825
Published
Updated
Affected
4 pkgs
Patched
4 / 4
Exploits
None indexed
Exploitation data as of Oct 11, 2026 · OSV.dev, NVD, FIRST.org (EPSS)

EPSS Exploitation Probability

via FIRST.org ↗
1.5%probability of exploitation in next 30 days
Lower Risk0.00%
Lower risk than most CVEs74th percentile — riskier than 74% of all scored CVEsHighest risk
0.96%1.59%2.23%2.86%2.4%1.5%Apr 26Aug 26Oct 26

Probability of exploitation in the next 30 days, from FIRST.org EPSS.

How urgent is this, really

GHSA-fp52-qw33-mfmw by exploitation likelihood (EPSS) against impact (CVSS). Outside the shaded patch-first corner.

Where this sits among everything scored

Of 385,987 CVEs with a current EPSS score, this one falls in the < 10% band (highlighted). Counts from FIRST.org, log-scaled.

Real-World Exposure

4 pkgs affected
🐹github.com/hashicorp/vault🐹github.com/hashicorp/vault🐹github.com/hashicorp/vault🐹github.com/hashicorp/vault

Real-time download stats are indexed for npm and PyPI packages. This vulnerability affects Go packages — download data is not available via public APIs for these ecosystems.

Description

HashiCorp Vault and Vault Enterprise versions 0.7.1 and newer, when configured with the AWS IAM auth method, may be vulnerable to authentication bypass. Fixed in 1.2.5, 1.3.8, 1.4.4, and 1.5.1..

Affected Packages

4 total 4 fixed
EcosystemPackageVulnerable rangeFix
🐹Gogithub.com/hashicorp/vault≥ 0.8.1&&< 1.2.51.2.5go get github.com/hashicorp/vault@v1.2.5
🐹Gogithub.com/hashicorp/vault≥ 1.3.0&&< 1.3.81.3.8go get github.com/hashicorp/vault@v1.3.8
🐹Gogithub.com/hashicorp/vault≥ 1.4.0&&< 1.4.41.4.4go get github.com/hashicorp/vault@v1.4.4
🐹Gogithub.com/hashicorp/vault≥ 1.5.0&&< 1.5.11.5.1go get github.com/hashicorp/vault@v1.5.1

Affected Products

1 product · 8 configurations
Application
vaulthashicorp
≥ 1.5.0 && < 1.5.1
range

Detection & mitigation playbook

Open-source dependency
  1. Detect

    Scan your dependency tree (package-lock.json, pnpm-lock.yaml, requirements.txt, go.sum, etc.) for github.com/hashicorp/vault, including transitive dependencies — a direct dependency you never call can still pull in a vulnerable version.

  2. Fix

    Update github.com/hashicorp/vault to 1.2.5 or later, then make sure no transitive (indirect) dependency still pins the vulnerable range — O3 confirms GHSA-fp52-qw33-mfmw is resolved across your whole dependency graph.

  3. Workarounds

    Put an independent control in front of the weakness: restrict the affected endpoint or interface to trusted networks, require an additional authentication factor or proxy-level check, and invalidate existing sessions and credentials in case the flaw has already been used.

Fixing This On Your OS

If you run this on a Linux distribution, patch through your package manager against the distro's own security advisory below — it tracks the exact backported fix for your release, which can ship on a different timeline (and sometimes a different severity) than the upstream project.

Red HatModerate
ProductFixed inAdvisory
Red Hat OpenShift Container Platform 4.13openshift4/topology-aware-lifecycle-manager-rhel8-operator:v4.13.1-6RHSA-2023:3342
RHODF-4.13-RHEL-9odf4/odf-rhel9-operator:v4.13.0-24RHSA-2023:3742

Frequently Asked Questions

HashiCorp Vault and Vault Enterprise versions 0.7.1 and newer, when configured with the AWS IAM auth method, may be vulnerable to authentication bypass. Fixed in 1.2.5, 1.3.8, 1.4.4, and 1.5.1..
O3 Security · Impact-Aware SCA

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