CVE-2026-80197
MEDIUMCVE-2026-80197 is a medium-severity (CVSS 4.3) CWE-639 vulnerability. O3 Security confirms whether CVE-2026-80197 is actually reachable in your code before you act, and blocks exploitation at runtime until you patch.
Kimai before 2.57.0 contains an improper authorization vulnerability in the favorite timesheet add and remove endpoints that allows authenticated users to manipulate other users' bookmarks.…
Exploitation Status
No confirmed exploitation observed yet
- CISA’s own triage has not observed active exploitation or public proof-of-concept code for this CVE as of its last assessment.
Exploitation and automatability from CISA’s SSVC triage for CVE-2026-80197.
Description
Kimai before 2.57.0 contains an improper authorization vulnerability in the favorite timesheet add and remove endpoints that allows authenticated users to manipulate other users' bookmarks. Attackers can add or remove timesheet entries from another user's favorite list by referencing their timesheet identifier, enabling cross-user business-state tampering without administrative privileges.
Detection & mitigation playbook
VulnerabilityDetect
Scan your dependency tree (package-lock.json, pnpm-lock.yaml, requirements.txt, go.sum, etc.) for the affected component. O3's reachability analysis confirms whether the vulnerable code path is actually invoked in your application, so you act on real exposure instead of every transitive match.
Remediation status
No patched version of the affected component has shipped for CVE-2026-80197 yet. Where your build allows, override or pin the dependency away from the vulnerable range, and apply any maintainer-recommended mitigation.
Mitigate without a patch
If you can't upgrade right away: gate or disable the affected feature, validate untrusted input at the boundary, and avoid passing attacker-controlled data into the vulnerable path. O3's runtime protection blocks exploitation in production as an interim safeguard until the upgrade lands.
How O3 protects you
O3 pinpoints whether CVE-2026-80197 is reachable in your code and exactly where to fix it, then blocks exploitation in production at runtime until the patched version is deployed.
Tailored to CVE-2026-80197. Runtime protection reduces exposure until a permanent patch is applied and verified — it complements patching, it doesn't replace it.
Frequently Asked Questions
Is CVE-2026-80197 in your dependencies?
O3 detects CVE-2026-80197 across dependencies and uses function-level reachability to confirm whether the vulnerable code path is actually reachable — not just present. No false positives.