# JWK Set's HTTP client only overwrites and appends JWK to local cache during refresh in github.com/MicahParks/jwkset

Advisory record · `GHSA-675f-rq2r-jw82`

- **Identifiers:** `GHSA-675f-rq2r-jw82` · `CVE-2025-22149` · `GO-2025-3376`
- **State:** Confirmed
- **Severity:** CVSS 2.1 Low
- **Critical:** No
- **Weakness (CWE):** [CWE-672](https://cwe.mitre.org/data/definitions/672.html)
- **Tags:** [CWE-672](https://agentprime.io/advisories/tag/cwe-672.md)
- **Published:** 9 Jan 2025
- **Updated:** 3 Mar 2026
- **Reviewed by a person:** No

Published by the GitHub Advisory Database at 9 Jan 2025, 19:41 UTC. agentprime has not analysed this yet, so whether it affects any app is not known.

## Affected packages

- `github.com/MicahParks/jwkset` (Go): affected `>=0.5.0, <0.6.0`; fixed in `0.6.0`

## 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

- 2.1 Low, CVSS 4.0: `CVSS:4.0/AV:N/AC:H/AT:P/PR:H/UI:N/VC:N/VI:N/VA:N/SC:N/SI:L/SA:N`, from CNA (GitHub_M)

- **CISA KEV:** Not listed.
- **EPSS:** 0.0056, the 46th percentile, on 6 Nov 2026: FIRST’s estimate of the chance of exploitation in the next 30 days.

## Timeline

This record came from the full history of the GitHub Advisory Database, published 9 Jan 2025. New records show when each source confirmed them.

## Sources

- [GitHub Advisory Database: GHSA-675f-rq2r-jw82](https://github.com/advisories/GHSA-675f-rq2r-jw82)
- [OSV: GHSA-675f-rq2r-jw82](https://osv.dev/vulnerability/GHSA-675f-rq2r-jw82)
- <https://github.com/MicahParks/jwkset/security/advisories/GHSA-675f-rq2r-jw82>
- <https://nvd.nist.gov/vuln/detail/CVE-2025-22149>
- <https://github.com/MicahParks/jwkset/commit/01db49a90f7f20c7fb39a699a2f19a7a5f379ed3>
- <https://github.com/MicahParks/jwkset/pull/41>

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-675f-rq2r-jw82>, 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-675f-rq2r-jw82/>. Everything for agents: <https://agentprime.io/llms.txt>.