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TI-2026-55441 Aliases CVE-2026-80200GHSA-wv9h-9jv8-rqm9

Kimai before 2.53.0 Open Redirect via RelayState

Priority LOW 30CWE-601Published · Updated

Key facts

Attack vector
Network
Privileges required
None
User interaction
Passive
Attack complexity
Low
Attack requirements
None
Impact type
Spoofing
Confidentiality · integrity · availability
None · None · None
Fix status
Fixed

Attack profile from CVSS 4.0 · CNA. Fix status from CNA. Impact type from CWE-601.

Summary

Kimai before 2.53.0 contains an open redirect vulnerability in the SAML authentication success handler that accepts unvalidated RelayState POST parameters as redirect destinations. Attackers with IdP access can supply malicious RelayState values to redirect authenticated users to attacker-controlled URLs for credential theft or phishing attacks.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.0036 29th percentileScored 2026-11-07
Fix Fixed kimai (kimai): 2.53.0

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

VendorProductAffected versionsFixed inStatusSource
kimaikimaibefore 2.53.02.53.0Patch availableCNA
  • kimai Vendorkimai Affected before 2.53.0 Fixed in 2.53.0 Patch available CNA

CPE names Threatist (inferred) · 1

Inferred from how NVD named this product before; not given by a source.

CPEVersionsRoleVendor
cpe:2.3:a:kimai:kimai:*:*:*:*:*:*:*:*——kimai
  • cpe:2.3:a:kimai:kimai:*:*:*:*:*:*:*:* Versions — — ·kimai

Remediation

  • Fix · CNA kimai (kimai) Fixed in 2.53.0

Fixed in the same release

Records fixed by the same vendor advisory or release, as the CNA lists them.

  • Release ·

    kimai 2.53.0

    2 records Highest priority Priority MEDIUM 1 MEDIUM, 1 LOW

    Other records, highest priority first

    • TI-2026-55442 Kimai before 2.53.0 API Token Leakage via Invoice TemplatePriority MEDIUM 44
    Show all 2 records →

Timeline

  1. 2026-10-02 Threatist record created from CVE-2026-80200
  2. 2026-10-03 Alias added: GHSA-wv9h-9jv8-rqm9

References

Advisory 1

  • 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
See all 46 →

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences