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CVE-2026-27855

🗓️ 27 Mar 2026 08:10:18Reported by OXType 
cvelist
 cvelist
🔗 www.cve.org👁 63 Views

Dovecot OTP replay risk with auth cache and username change; attacker can log in; use SCRAM or OAuth2 and secure channel.

Related
Affected
Refs
ReporterTitlePublishedViews
Family
attackerkb
attackerkb
CVE-2026-27855
27 Mar 202608:10
–attackerkb
alpinelinux
AlpineLinux
CVE-2026-27855
27 Mar 202608:10
–alpinelinux
astralinux
AstraLinux
Astra Linux – Vulnerability in dovecot
15 Oct 202615:53
–astralinux
bdu_fstec
BDU FSTEC
Dovecot Authentication Bypass
23 Jul 202600:00
–bdu_fstec
circl
Circl
CVE-2026-27855
27 Mar 202612:27
–circl
cnnvd
CNNVD
Open-Xchange OX Dovecot Pro security vulnerability
27 Mar 202600:00
–cnnvd
cve
CVE
CVE-2026-27855
27 Mar 202608:10
–cve
debian
Debian
[SECURITY] [DLA 4556-1] dovecot security update
1 May 202605:11
–debian
debian
Debian
[SECURITY] [DSA 6197-1] dovecot security update
5 Apr 202615:22
–debian
debiancve
Debian CVE
CVE-2026-27855
27 Mar 202608:10
–debiancve
Rows per page
[
  {
    "defaultStatus": "unaffected",
    "modules": [
      "core"
    ],
    "product": "OX Dovecot Pro",
    "vendor": "Open-Xchange GmbH",
    "versions": [
      {
        "lessThanOrEqual": "2.3.0",
        "status": "affected",
        "version": "0",
        "versionType": "semver"
      }
    ]
  }
]

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