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CVE-2026-84458 Zammad: Account takeover via unverified email matching during SSO auto-link

🗓️ 25 Sep 2026 18:15:26Reported by GitHub_MType 
cvelist
 cvelist
🔗 www.cve.org👁 44 Views

Unauthenticated account takeover in Zammad prior to 7.1.2 via unverified SSO email matching.

Related
Affected
Refs
ReporterTitlePublishedViews
Family
circl
Circl
CVE-2026-84458
25 Sep 202620:07
–circl
cve
CVE
CVE-2026-84458
25 Sep 202618:15
–cve
euvd
EUVD
EUVD-2026-87261
25 Sep 202618:15
–euvd
nvd
NVD
CVE-2026-84458
25 Sep 202619:17
–nvd
ptsecurity
Positive Technologies
PT-2026-99085
25 Sep 202600:00
–ptsecurity
rapid7
Rapid7 Vulnerability Database (full)
CVE-2026-84458: Improper Authentication
25 Sep 202600:00
–rapid7
vulnrichment
Vulnrichment
CVE-2026-84458 Zammad: Account takeover via unverified email matching during SSO auto-link
25 Sep 202618:15
–vulnrichment
[
  {
    "vendor": "zammad",
    "product": "zammad",
    "versions": [
      {
        "version": "< 7.1.2",
        "status": "affected"
      }
    ]
  }
]

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25 Sep 2026 18:15Current
CVSS 49.1
EPSS0.00356
SSVC
44