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Advisory record · GHSA-jg2j-2w24-54cg

Kimai has an Authenticated Server-Side Template Injection (SSTI)

CVSS 6.8 MediumEPSS 0.0046 · 40th percentile

Published by the GitHub Advisory Database at 20 Jan 2026, 17:07 UTC. agentprime has not analysed this yet, so whether it affects any app is not known.

PackageEcosystemAffectedFixed in
kimai/kimaiPackagist<2.46.02.46.0
Identifiers
GHSA-jg2j-2w24-54cg · CVE-2026-23626 · PKSA-pn9p-tcw8-rbpj
Weakness (CWE)
CWE-1336
Tags
Published
20 Jan 2026
Updated
3 Feb 2026

Machine-written summary

Summary written by Claude Haiku from the source advisory. Not reviewed by a person.

Kimai versions before 2.46.0 are affected, including 2.45.0, where export templates run in a Twig sandbox with an overly permissive policy. An authenticated user with export permissions who can also place a template file on the server could read sensitive data such as environment secrets, user password hashes, and session and CSRF tokens. Upgrade to Kimai 2.46.0 or later. The source gives few details on workarounds.

Written 3 Nov 2026.

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

ScoreRatingCVSSVectorSource
6.8 Medium 3.1 CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:H/I:N/A:N CNA (GitHub_M)
  • CISA KEV Not listed.
  • EPSS 0.0046, the 40th percentile, on 14 Nov 2026: FIRST’s estimate of the chance of exploitation in the next 30 days.

Timeline

  1. 31 Oct 2026, 14:26 UTC First seen by agentprime
  2. 31 Oct 2026, 14:26 UTC Confirmed by OSV

Sources

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.