CVE-2026-80195

MEDIUMPre-NVD 5.45.4—
EchelonGraph scoreHIGH confidence

Score 5.4 from GitHub Security Advisory (severity: HIGH) published 2026-08-26. a secondary CVSS source baseline 5.4; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, secondary
Trending — 4 sources updated this week
5.4EG
EchelonGraph verdictMonitorLow exploitation likelihood right now — keep watching.
  • Lower severity and no public exploit yet
CISA-KEV: Not listedEPSS PROB: 0%CVSS: 5.4Exploit: None knownExposed: 0

No vendor fix yet — apply a workaround or compensating control (WAF / firewall / segmentation) and watch for a patch.

Kimai before 2.63.0 contains a business logic / improper authorization vulnerability in the team update API endpoint (PATCH /api/teams/{id}), which removes all existing team members before validating the submitted replacement member list. An authenticated teamlead (or other user) with permission to edit a team can submit a malformed members payload; although Kimai returns a validation error, the existing membership rows have already been deleted. This bypasses the dedicated member-removal endpoint's protection against removing teamleaders and can leave a team with no members or teamleaders, disrupting team-based access control.

CVSS v3
5.4
EG Score
5.4(high)
EG Risk
24(Track)
EG Risk 24/100SSVC: Track

EG Risk is EchelonGraph's 0–100 priority score: it fuses intrinsic severity with real-world exploitation and automatability so you can rank equal-severity CVEs and fix the most dangerous first. Higher = act sooner. Distinct from the 0–10 EG Score (severity).

How it’s computed
Severity54% × 45%
Exploitation0% × 40%
Automatability0% × 15%
Action: Routine — remediate on your standard cadence.
EPSS PROB
0%
EPSS %ILE
20%
KEV
Not listed

Published

August 25, 2026

Last Modified

August 26, 2026

Advisory Details (2)

Auto-updated Aug 25, 2026
🔬 Proof of concept available. Patch available. Sources: github.
generic

Kimai before 2.63.0 Team Membership Removal via API | Advisories | VulnCheck

https://www.vulncheck.com/advisories/kimai-before-2.63.0-team-membership-removal-via-api
github Patch Available🟡 PoC Available

Kimai API Team Update Endpoint Removes Team Memberships Before Validating Replacement Members · Advisory · kimai/kimai · GitHub

https://github.com/kimai/kimai/security/advisories/GHSA-6rxf-4hh9-pp46

Vendor Advisories for CVE-2026-80195(1)

These vendors published their own advisory mentioning this CVE — often with vendor-specific remediation steps + affected product lists not in NVD.

Weakness Classification(1)

MITRE Common Weakness Enumeration — the root-cause categories this CVE belongs to.

Data Freshness Timeline

(refreshed 14× in last 7d / 14× in last 30d)

Each row is a source pipeline that fetched or updated this CVE on that date, with what changed. For example, "NVD update" means NVD published or revised its analysis for this CVE; "MITRE cvelistV5" means we ingested or refreshed it from the CNA feed. Most recent first.

  1. 2026-08-30 01:31 UTCEG score recompute
  2. 2026-08-30 01:31 UTCGHSA enrichment
  3. 2026-08-30 01:22 UTCEPSS rescore
  4. 2026-08-29 00:02 UTCEG score recompute
  5. 2026-08-29 00:01 UTCGHSA enrichment
  6. 2026-08-28 21:42 UTCEPSS rescore
  7. 2026-08-27 18:51 UTCEG score recompute
  8. 2026-08-27 18:50 UTCGHSA enrichment
  9. 2026-08-26 17:21 UTCEG score recompute
  10. 2026-08-26 16:22 UTCEG score recompute
  11. 2026-08-26 15:56 UTCEG score recompute
  12. 2026-08-26 14:47 UTCEPSS rescore
  13. 2026-08-25 23:25 UTCEG score recompute
  14. 2026-08-25 23:24 UTCMITRE cvelistV5first tracked

Frequently asked(5)

What is CVE-2026-80195?
CVE-2026-80195 is a medium vulnerability published on August 25, 2026. Kimai before 2.63.0 contains a business logic / improper authorization vulnerability in the team update API endpoint (PATCH /api/teams/{id}), which removes all existing team members before validating the submitted replacement member list. An authenticated teamlead (or other user) with permission to…
When was CVE-2026-80195 disclosed?
CVE-2026-80195 was first published in the National Vulnerability Database on August 25, 2026, with the most recent update on August 26, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-80195 actively exploited?
CVE-2026-80195 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 0% probability of exploitation in the next 30 days, which ranks it in the top 80.4% of all scored CVEs.
What is the CVSS score of CVE-2026-80195?
CVE-2026-80195 has a CVSS v3 base score of 5.4 (NVD).
How do I remediate CVE-2026-80195?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-80195, EchelonGraph cross-links them in the Vendor Advisories panel below — those typically contain the canonical remediation steps, fixed version numbers, and any vendor-specific mitigations.

Dependency Blast Radius

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