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MEDIUM severity

Enumeration of users in HashiCorp VaultGHSA-rpgp-9hmg-j25x

MEDIUMFix: hashicorp/vault#10537

GHSA-rpgp-9hmg-j25x is a medium-severity (CVSS 6.5) CWE-209 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-2020-35177CVE-2020-35177GO-2024-2508
Published
Updated
Affected
2 pkgs
Patched
2 / 2
Exploits
None indexed
Exploitation data as of Nov 9, 2026 · OSV.dev, NVD, FIRST.org (EPSS)

EPSS Exploitation Probability

via FIRST.org ↗
1.3%probability of exploitation in next 30 days
Lower Risk+0.09%
Lower risk than most CVEs71th percentile — riskier than 71% of all scored CVEsHighest risk
0.00%0.60%1.20%1.80%0.4%1.3%May 26Sep 26Nov 26

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

How urgent is this, really

Where this sits among everything scored

Real-World Exposure

2 pkgs affected
🐹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 1.4.1 and newer allowed the enumeration of users via the LDAP auth method. Fixed in 1.5.6 and 1.6.1.

Affected Packages

2 total 2 fixed
EcosystemPackageVulnerable rangeFix
🐹Gogithub.com/hashicorp/vault≥ 1.5.0&&< 1.5.61.5.6go get github.com/hashicorp/vault@v1.5.6
🐹Gogithub.com/hashicorp/vault≥ 1.6.0&&< 1.6.11.6.1go get github.com/hashicorp/vault@v1.6.1

Affected Products

1 product · 4 configurations
Application
vaulthashicorp
≥ 1.6.0 && < 1.6.1
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 1.5.6 or later, then make sure no transitive (indirect) dependency still pins the vulnerable range — O3 confirms GHSA-rpgp-9hmg-j25x is resolved across your whole dependency graph.

  3. Workarounds

    If you can't upgrade right away: gate or disable the affected feature, validate untrusted input at the boundary, and avoid passing attacker-controlled data into the vulnerable path. O3's runtime protection blocks exploitation in production as an interim safeguard until the upgrade lands.

Frequently Asked Questions

HashiCorp Vault and Vault Enterprise allowed the enumeration of users via the LDAP auth method. Fixed in 1.5.6 and 1.6.1.
O3 Security · Impact-Aware SCA

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Enumeration of users in HashiCorp Vault (Medium 6.5)