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CVE-2026-80199 Kimai before 2.54.0 Username Enumeration via Timing Oracle

🗓️ 25 Aug 2026 23:19:05Reported by VulnCheckType 
cvelist
 cvelist
🔗 www.cve.org👁 3 Views

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 ru...

Related
Affected
Refs
ReporterTitlePublishedViews
Family
circl
Circl
CVE-2026-80199
26 Aug 202600:20
circl
cve
CVE
CVE-2026-80199 Kimai before 2.54.0 Username Enumeration via Timing Oracle
25 Aug 202623:19
cve
euvd
EUVD
EUVD-2026-66221
25 Aug 202623:19
euvd
ptsecurity
Positive Technologies
PT-2026-81912
25 Aug 202600:00
ptsecurity
[
  {
    "vendor": "kimai",
    "product": "kimai",
    "defaultStatus": "unaffected",
    "versions": [
      {
        "version": "0",
        "status": "affected",
        "versionType": "semver",
        "lessThan": "2.54.0"
      },
      {
        "version": "2.54.0",
        "status": "unaffected",
        "versionType": "semver"
      }
    ]
  }
]

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25 Aug 2026 23:19Current
CVSS 3.13.7
CVSS 46.3
3