CVE-2026-80195Network attack vectorHinoki check available

Team access disruption via premature membership deletion

Published Aug 25, 2026 · Updated Aug 25, 2026

Improper authorization in Kimai before 2.63.0 allows remote authenticated users to remove all members from an editable team. The PATCH /api/teams/{id} update path deletes existing membership rows before validating the submitted replacement members payload. Team-edit permission is required; malformed input returns an error after deletion and can leave the team leaderless, blocking legitimate team-scoped access.

CVSS severityUnavailable
Unscored
EPSS probability0.28%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkAvailable
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Summary

What happened

Improper authorization in Kimai before 2.63.0 allows remote authenticated users to remove all members from an editable team. The PATCH /api/teams/{id} update path deletes existing membership rows before validating the submitted replacement members payload. Team-edit permission is required; malformed input returns an error after deletion and can leave the team leaderless, blocking legitimate team-scoped access.

The record

CVE
CVE-2026-80195
Published
Aug 25, 2026
Updated
Aug 25, 2026
Vendor
Kimai
Product
Kimai
Classifications
CWE-863, CWE-841, T1531
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. Aug 25, 2026CVE publishedPublication date reported by the CVE source.
  2. Aug 25, 2026Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=0 <2.63.0

What conditions does exploitation require?

Attack vectornetwork
Required privilegesauthenticated

What is affected?

Kimai · Kimaiversion=0 <2.63.0

Published CVSS scores

No CVSS assessment is available in this record.

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

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No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-863Incorrect Authorization
CWE-841Improper Enforcement of Behavioral Workflow
T1531Account Access Removal

Public exploit references

No public exploit references are available in this record.

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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