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CVE-2026-88010 Traefik: BasicAuth singleflight coalescing reintroduces an unauthenticated username-enumeration timing oracle

🗓️ 22 Sep 2026 15:38:25Reported by GitHub_MType 
cvelist
 cvelist
🔗 www.cve.org👁 49 Views

Traefik BasicAuth singleflight timing oracle enables unauthenticated username enumeration.

Related
Affected
Refs
ReporterTitlePublishedViews
Family
alpinelinux
AlpineLinux
CVE-2026-88010
22 Sep 202615:38
–alpinelinux
circl
Circl
CVE-2026-88010
22 Sep 202622:35
–circl
cve
CVE
CVE-2026-88010
22 Sep 202615:38
–cve
euvd
EUVD
EUVD-2026-84532
22 Sep 202615:38
–euvd
github
Github Security Blog
Traefik: BasicAuth singleflight coalescing reintroduces an unauthenticated username-enumeration timing oracle
22 Sep 202620:40
–github
mend
Mend
CVE-2026-88010
22 Sep 202615:38
–mend
nvd
NVD
CVE-2026-88010
22 Sep 202616:18
–nvd
opensuse
OPENSUSE Linux
traefik-3.7.13-1.1 on GA media (moderate)
20 Oct 202600:00
–opensuse
osv_cga
osv_cga
CGA-GH2V-7CQ7-2425
30 Sep 202611:48
–osv_cga
osv_cga
osv_cga
CGA-HQ6F-J3CW-8XPP
30 Sep 202613:46
–osv_cga
Rows per page
[
  {
    "vendor": "traefik",
    "product": "traefik",
    "versions": [
      {
        "version": ">= 3.6.11, < 3.7.13",
        "status": "affected"
      }
    ]
  }
]

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22 Sep 2026 15:38Current
CVSS 46.3
EPSS0.00307
SSVC
49