# github.com/go-acme/lego/v4/acme/api does not enforce HTTPS

Advisory record · `GHSA-q82r-2j7m-9rv4`

- **Identifiers:** `GHSA-q82r-2j7m-9rv4` · `CVE-2025-54799` · `GO-2025-3847`
- **State:** Confirmed
- **Severity:** CVSS 2.3 Low
- **Critical:** No
- **Weakness (CWE):** [CWE-319](https://cwe.mitre.org/data/definitions/319.html)
- **Tags:** [Weak cryptography or TLS](https://agentprime.io/advisories/tag/weak-crypto.md)
- **Published:** 6 Aug 2025
- **Updated:** 10 Sept 2026
- **Reviewed by a person:** No

Published by the GitHub Advisory Database at 6 Aug 2025, 17:08 UTC. agentprime has not analysed this yet, so whether it affects any app is not known.

## Affected packages

- `github.com/go-acme/lego` (Go): affected `<=4.25.1`; no fixed version yet
- `github.com/go-acme/lego/v3` (Go): affected `<=4.25.1`; no fixed version yet
- `github.com/go-acme/lego/v4` (Go): affected `<4.25.2`; fixed in `4.25.2`

## 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

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

- **CISA KEV:** Not listed.
- **EPSS:** 0.0026, the 17th percentile, on 14 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-q82r-2j7m-9rv4)

## Sources

- [GitHub Advisory Database: GHSA-q82r-2j7m-9rv4](https://github.com/advisories/GHSA-q82r-2j7m-9rv4)
- [OSV: GHSA-q82r-2j7m-9rv4](https://osv.dev/vulnerability/GHSA-q82r-2j7m-9rv4)
- <https://github.com/go-acme/lego/security/advisories/GHSA-q82r-2j7m-9rv4>
- <https://nvd.nist.gov/vuln/detail/CVE-2025-54799>
- <https://github.com/go-acme/lego/commit/238454b5f74f3cfcbb244ff0d0dc914a4ad44b96>
- <https://github.com/go-acme/lego>

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-q82r-2j7m-9rv4>, 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-q82r-2j7m-9rv4/>. Everything for agents: <https://agentprime.io/llms.txt>.