# Axios: maxRedirects: 0 is not enforced by the fetch adapter, allowing redirect-based SSRF

Advisory record · `GHSA-r4gj-5m52-g5wh`

- **Identifiers:** `GHSA-r4gj-5m52-g5wh` · `CVE-2026-101907`
- **State:** Confirmed
- **Severity:** CVSS 7.0 High
- **Critical:** No
- **Weakness (CWE):** [CWE-441](https://cwe.mitre.org/data/definitions/441.html) · [CWE-601](https://cwe.mitre.org/data/definitions/601.html)
- **Tags:** [Open redirect](https://agentprime.io/advisories/tag/open-redirect.md) · [CWE-441](https://agentprime.io/advisories/tag/cwe-441.md)
- **Published:** 30 Sept 2026
- **Updated:** 30 Sept 2026
- **Reviewed by a person:** No

Published by the GitHub Advisory Database at 30 Sept 2026, 15:31 UTC. agentprime has not analysed this yet, so whether it affects any app is not known.

## Affected packages

- `axios` (npm): affected `>=1.17.0, <1.20.0`; fixed in `1.20.0`

## 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

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

- **CISA KEV:** Not listed.
- **EPSS:** 0.0047, the 40th percentile, on 6 Nov 2026: FIRST’s estimate of the chance of exploitation in the next 30 days.

## Timeline

- 31 Oct 2026, 13:34 UTC: First seen by agentprime
- 31 Oct 2026, 13:34 UTC: [Confirmed by OSV](https://osv.dev/vulnerability/GHSA-r4gj-5m52-g5wh)

## Sources

- [GitHub Advisory Database: GHSA-r4gj-5m52-g5wh](https://github.com/advisories/GHSA-r4gj-5m52-g5wh)
- [OSV: GHSA-r4gj-5m52-g5wh](https://osv.dev/vulnerability/GHSA-r4gj-5m52-g5wh)
- <https://github.com/axios/axios/security/advisories/GHSA-r4gj-5m52-g5wh>
- <https://nvd.nist.gov/vuln/detail/CVE-2026-101907>
- <https://github.com/axios/axios/pull/11141>
- <https://github.com/axios/axios/commit/d19040bda7a8be2f82c3c6e1a5bc03917daee39a>
- <https://github.com/axios/axios>
- <https://github.com/axios/axios/releases/tag/v1.20.0>

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-r4gj-5m52-g5wh>, 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-r4gj-5m52-g5wh/>. Everything for agents: <https://agentprime.io/llms.txt>.