# Dragonfly vulnerable to timing attacks against Proxy’s basic authentication in d7y.io/dragonfly

Advisory record · `GHSA-c2fc-9q9c-5486`

- **Identifiers:** `GHSA-c2fc-9q9c-5486` · `CVE-2025-59350` · `GO-2025-3972`
- **State:** Confirmed
- **Severity:** CVSS 2.7 Low
- **Critical:** No
- **Weakness (CWE):** [CWE-208](https://cwe.mitre.org/data/definitions/208.html)
- **Tags:** [CWE-208](https://agentprime.io/advisories/tag/cwe-208.md)
- **Published:** 24 Sept 2025
- **Updated:** 3 Mar 2026
- **Reviewed by a person:** No

Published by the GitHub Advisory Database at 24 Sept 2025, 19:21 UTC. agentprime has not analysed this yet, so whether it affects any app is not known.

## Affected packages

- `d7y.io/dragonfly/v2` (Go): affected `<2.1.0`; fixed in `2.1.0`
- `github.com/dragonflyoss/dragonfly` (Go): affected `all versions`; no fixed version yet

## 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

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

- **CISA KEV:** Not listed.
- **EPSS:** 0.0034, the 27th percentile, on 7 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 24 Sept 2025. New records show when each source confirmed them.

## Sources

- [GitHub Advisory Database: GHSA-c2fc-9q9c-5486](https://github.com/advisories/GHSA-c2fc-9q9c-5486)
- [OSV: GHSA-c2fc-9q9c-5486](https://osv.dev/vulnerability/GHSA-c2fc-9q9c-5486)
- <https://github.com/dragonflyoss/dragonfly/security/advisories/GHSA-c2fc-9q9c-5486>
- <https://nvd.nist.gov/vuln/detail/CVE-2025-59350>
- <https://github.com/dragonflyoss/dragonfly/blob/main/docs/security/dragonfly-comprehensive-report-2023.pdf>

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-c2fc-9q9c-5486>, 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-c2fc-9q9c-5486/>. Everything for agents: <https://agentprime.io/llms.txt>.