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VULNERABILITIES

CVE-2026-80199 Details

UNDERGOING ENRICHMENT

The CVE is currently being enriched by the Volerion team. The enrichment process results in the association of reference link tags, CVSS, and CPE applicability statement data.

Description

Kimai before 2.54.0 contains a timing oracle vulnerability in TokenAuthenticator that allows unauthenticated attackers to enumerate valid usernames via X-AUTH-USER header. Attackers can measure response time differences when the password hasher runs only for existing users, enabling username enumeration with no login throttling protection.

Metrics

CVSS 3.x Severity and Vector Strings:

NDDVolerionCVSS-B:…Vector:This vulnerability is currently being analyzed.
CNA: [email protected]CVSS-B:3.7 LOWVector:CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:N/A:N

References to Advisories, Solutions, and Tools

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URLSource(s)Tag(s)
https://github.com/kimai/kimai/security/advisories/GHSA-jrc6-fmhw-fpq2 [email protected]
https://www.vulncheck.com/advisories/kimai-before-2.54.0-username-enumeration-via-timing-oracle [email protected]

Weakness Enumeration

CWE-IDCWE NameSource
CWE-208Observable Timing Discrepancy[email protected]

Affected Products

This vulnerability is currently being analyzed

Change History

2 change records found show changes

QUICK INFO

CVE Dictionary Entry:
CVE-2026-80199
NVD Published Date:
Aug 26, 2026
NVD Last Modified:
Aug 31, 2026
Source:
[email protected]
CVE-2026-80199 Details - Not Deferred