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Low, CVSS 3.7

Kimai information disclosure vulnerability

CVE-2024-4596GHSA-6f3v-2r2j-2rpr

What to do

Vendor fix available. Upgrade each affected package to the fixed version on its release line (kimai/kimai 2.16.0), redeploy, then verify what is actually installed.

This page has no inventory attached, so it cannot say whether you are affected. A vendor fix is not proof that your deployment is fixed.

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Affected packages

Sources

Severity and exploitation
Exploitation
No confirmed exploitation recorded. Patch Next marks exploitation only from CISA KEV.
CVSS
3.7 · CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:N/A:N
EPSS
  • CVE-2024-4596: 0.79% estimated exploitation activity in the next 30 days; percentile 56.32 (FIRST EPSS, 2026-11-03). This is a model estimate, not proof of exploitation or customer exposure.
Source description

As published by the source; long descriptions are shortened.

A vulnerability was found in Kimai up to 2.15.0 and classified as problematic. Affected by this issue is some unknown functionality of the component Session Handler. The manipulation of the argument PHPSESSIONID leads to information disclosure. The attack may be launched remotely. The complexity of an attack is rather high. The exploitation is known to be difficult. Upgrading to version 2.16.0 is able to address this issue. It is recommended to upgrade the affected component. VDB-263318 is the identifier assigned to this vulnerability.

Dates and revisions
Published by the source
Last modified by the source
Source last checked
  1. Revision 1 · created ·

    Published from ghsa record GHSA-6f3v-2r2j-2rpr

Agent brief

Preview the exact text before you copy it. Commands are read-only suggestions; review them before running anything.

# Patch Next advisory brief: CVE-2024-4596

Advisory: Kimai information disclosure vulnerability
IDs: CVE-2024-4596, GHSA-6f3v-2r2j-2rpr
Record: https://patchnext.com/advisories/cve-2024-4596 (revision 1, source checked 26 Oct 2026, 14:24 UTC)
Inventory: none attached. This brief comes from a public page and does not say whether any deployment is affected.
Severity: Low (CVSS 3.7)
Exploitation: no confirmed exploitation recorded. Patch Next confirms exploitation only from CISA KEV.
Vendor response: Vendor fix available; fixed versions by package: kimai/kimai 2.16.0. A vendor fix does not mean a deployment is fixed.

## Affected components
- Packagist kimai/kimai: affected < 2.16.0; fixed in 2.16.0

## Suggested inspection (read-only)
- Packagist kimai/kimai: check the installed version with your package manager.

## Supported action
Upgrade each affected component to a fixed version on its release line. For a transitive dependency, upgrade the parent package or add an override or constraint, then regenerate the lockfile. Redeploy every environment that ran an affected version.

## Required regression checks
- Run the test suite and a production build.
- Exercise the features that depend on kimai/kimai.
- Repeat the inspection and confirm that only fixed versions remain installed.

## Rollback considerations
- Keep the previous lockfile and deployment artifact. Rolling back reinstates the vulnerable version, so apply any documented mitigation while you fix forward.

## Unresolved questions
- Which deployments run an affected version?
- Exploitation status can change. Check again before lowering the priority.
- Mark the work resolved only after the fixed version is verified in production.

## Sources
- Verified: https://github.com/advisories/GHSA-6f3v-2r2j-2rpr (GitHub-reviewed advisory GHSA-6f3v-2r2j-2rpr lists affected ranges: Packagist kimai/kimai >=0 <2.16.0)

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