# Zitadel May Bypass Second Authentication Factor

Advisory record · `GHSA-cfjq-28r2-4jv5`

- **Identifiers:** `GHSA-cfjq-28r2-4jv5` · `CVE-2025-64103` · `GO-2025-4083`
- **State:** Confirmed
- **Severity:** CVSS 8.7 High
- **Critical:** No
- **Weakness (CWE):** [CWE-287](https://cwe.mitre.org/data/definitions/287.html) · [CWE-308](https://cwe.mitre.org/data/definitions/308.html)
- **Tags:** [Authentication bypass](https://agentprime.io/advisories/tag/auth-bypass.md) · [CWE-308](https://agentprime.io/advisories/tag/cwe-308.md)
- **Published:** 29 Oct 2025
- **Updated:** 5 Nov 2025
- **Reviewed by a person:** No

Published by the GitHub Advisory Database at 29 Oct 2025, 22:21 UTC. agentprime has not analysed this yet, so whether it affects any app is not known.

## Affected packages

- `github.com/zitadel/zitadel/v2` (Go): affected `>=2.53.6, <=2.53.9 || >=2.54.3, <=2.54.10 || >=2.55.0, <2.71.18`; fixed in `2.71.18`
- `github.com/zitadel/zitadel` (Go): affected `<1.80.0-v2.20.0.20251029091250-b284f8474eed`; fixed in `1.80.0-v2.20.0.20251029091250-b284f8474eed`

## 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

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

- **CISA KEV:** Not listed.
- **EPSS:** 0.0035, the 29th 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 29 Oct 2025. New records show when each source confirmed them.

## Sources

- [GitHub Advisory Database: GHSA-cfjq-28r2-4jv5](https://github.com/advisories/GHSA-cfjq-28r2-4jv5)
- [OSV: GHSA-cfjq-28r2-4jv5](https://osv.dev/vulnerability/GHSA-cfjq-28r2-4jv5)
- <https://github.com/zitadel/zitadel/security/advisories/GHSA-cfjq-28r2-4jv5>
- <https://nvd.nist.gov/vuln/detail/CVE-2025-64103>
- <https://github.com/zitadel/zitadel/commit/b284f8474eed0cba531905101619e7ae7963156b>
- <https://github.com/zitadel/zitadel>
- <https://pkg.go.dev/vuln/GO-2025-4083>

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-cfjq-28r2-4jv5>, 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-cfjq-28r2-4jv5/>. Everything for agents: <https://agentprime.io/llms.txt>.