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CVE-2026-27855

🗓️ 27 Mar 2026 09:16:19Reported by [email protected]Type 
nvd
 nvd
🔗 web.nvd.nist.gov👁 14 Views

Dovecot OTP replay occurs if authentication cache is on and username changes in passdb, enabling login with a cached password

Related
Detection
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
5 Oct 202611:39
–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
cvelist
Cvelist
CVE-2026-27855
27 Mar 202608:10
–cvelist
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
Rows per page
NVD
Node
OR
dovecotdovecotRange<2.4.3
open-xchangedovecotRange≤2.3.0pro

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17 Jun 2026 10:27Current
CVSS 3.15.9 - 6.8
EPSS0.004
SSVC
14