Kimai before 2.56.0 Information Disclosure via config() Twig Function
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- None
- Attack complexity
- Low
- Attack requirements
- None
- Impact type
- Security bypass
- Confidentiality · integrity · availability
- High · None · None
- Fix status
- Fixed
Attack profile from CVSS 4.0 · CNA. Fix status from CNA. Impact type from CWE-693.
Summary
Kimai versions before 2.56.0 fail to restrict the config() Twig function in sandboxed invoice and export templates, allowing administrators to access arbitrary configuration keys. Attackers with admin privileges can upload malicious templates to exfiltrate server-wide secrets including LDAP bind passwords and SAML private keys into invoice or export documents accessible to lower-privileged users.
Why it matters now
SSVC decision points
CISA ADP · SSVC 2.0.3
- Exploitation
- None
- Automatable
- Yes
- Technical impact
- Partial
The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.
Affected products
Remediation
- Fix · CNA kimai (kimai) Fixed in 2.56.0
Fixed in the same release
Records fixed by the same vendor advisory or release, as the CNA lists them.
- Release ·
kimai 2.56.0
2 records Highest priority Priority HIGH 1 HIGH, 1 MEDIUM
Other records, highest priority first
- TI-2026-55443 Kimai before 2.56.0 Authorization Bypass via TimesheetVoterPriority HIGH 75
Timeline
- 2026-10-02 Threatist record created from CVE-2026-80198
- 2026-10-03 Alias added: GHSA-w754-75mx-556q
References
More kimai vulnerabilities
- TI-2023-30240 Kimai 1.30.10 SameSite Cookie Vulnerability Session Hijacking CVSS 4.0HIGH 8.5
- TI-2026-55437 Kimai before 2.58.0 Authentication Bypass via Password Reset Link CVSS 4.0HIGH 8.7
- TI-2026-55443 Kimai before 2.56.0 Authorization Bypass via TimesheetVoter CVSS 4.0CRITICAL 9.3
- TI-2026-22900 Kimai: API invoice endpoint missing customer-level access control (IDOR) CVSS 3.1MEDIUM 6.5
- TI-2026-55440 Kimai before 2.54.0 Username Enumeration via Timing Oracle CVSS 4.0MEDIUM 6.3
- TI-2026-37927 Incorrect authorization in kimai CVSS 4.0MEDIUM 6.3
Sources
- CVE-2026-80198 · CVE Program
- CVE-2026-80198 · NVD
- FIRST EPSS
- GHSA-w754-75mx-556q · GitHub Advisory Database · CC BY 4.0
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences