# Vault Community Edition rekey and recovery key operations can cause denial of service

Advisory record · `GHSA-fhc2-8qx8-6vj7`

- **Identifiers:** `GHSA-fhc2-8qx8-6vj7` · `BIT-vault-2025-4656` · `CVE-2025-4656` · `GO-2025-3788`
- **State:** Confirmed
- **Severity:** CVSS 3.1 Low
- **Critical:** No
- **Weakness (CWE):** [CWE-1088](https://cwe.mitre.org/data/definitions/1088.html)
- **Tags:** [CWE-1088](https://agentprime.io/advisories/tag/cwe-1088.md)
- **Published:** 26 Jun 2025
- **Updated:** 10 Sept 2026
- **Reviewed by a person:** No

Published by the GitHub Advisory Database at 26 Jun 2025, 21:31 UTC. agentprime has not analysed this yet, so whether it affects any app is not known.

## Affected packages

- `github.com/hashicorp/vault` (Go): affected `>=1.14.8, <1.20.0`; fixed in `1.20.0`

## Machine-written summary

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

> Vault Community Edition (github.com/hashicorp/vault) versions 1.14.8 up to but not including 1.20.0 are affected. A Vault operator can cancel rekey and recovery key operations in an uncontrolled way, which can cause a denial of service. Upgrade to Vault 1.20.0. The source gives few details on the exact conditions required.

Written 1 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

- 3.1 Low, CVSS 3.1: `CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:N/I:N/A:L`, from CNA (HashiCorp)

- **CISA KEV:** Not listed.
- **EPSS:** 0.0027, the 18th percentile, on 6 Nov 2026: FIRST’s estimate of the chance of exploitation in the next 30 days.

## Timeline

- 31 Oct 2026, 14:14 UTC: First seen by agentprime
- 31 Oct 2026, 14:14 UTC: [Confirmed by OSV](https://osv.dev/vulnerability/GHSA-fhc2-8qx8-6vj7)

## Sources

- [GitHub Advisory Database: GHSA-fhc2-8qx8-6vj7](https://github.com/advisories/GHSA-fhc2-8qx8-6vj7)
- [OSV: GHSA-fhc2-8qx8-6vj7](https://osv.dev/vulnerability/GHSA-fhc2-8qx8-6vj7)
- <https://nvd.nist.gov/vuln/detail/CVE-2025-4656>
- <https://github.com/hashicorp/vault/pull/30794>
- <https://discuss.hashicorp.com/t/hcsec-2025-11-vault-vulnerable-to-recovery-key-cancellation-denial-of-service/75570>
- <https://github.com/hashicorp/vault>

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.

## Check whether this affects you

A Match means an installed version is in the affected range above. Most don’t affect the app; agentprime hasn’t analysed this one yet.

- With the agentprime MCP server (<https://api.agentprime.io/mcp>), ask your agent to check the project: `check_lockfile` sends a lockfile, `check_packages` a list of installed packages, and both return the Matches and the upgrades that clear them. `get_advisory` returns this record. Setup: <https://agentprime.io/mcp.md>
- In a browser: <https://agentprime.io/check/> reads your lockfile in the browser, never uploading it.
- Whether it touches your code, with file and line: the Claude Code plugin, <https://agentprime.io/plugin.md>
- As JSON: <https://api.agentprime.io/v1/advisories/GHSA-fhc2-8qx8-6vj7>, or `POST https://api.agentprime.io/v1/match` with your packages (<https://agentprime.io/api.md>)

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The web page: <https://agentprime.io/advisories/GHSA-fhc2-8qx8-6vj7/>. Everything for agents: <https://agentprime.io/llms.txt>.