CVE-2026-27851

Name
CVE-2026-27851
Description
When safe filter is used with variable expansion, all following pipelines on the same string are incorrectly interpreted as safe too, enabling unsafe data to be unescaped. This can enable SQL / LDAP injection attacks when used in authentication. Avoid using safe filter until on fixed version. No publicly available exploits are known.
NVD Severity
unknown
Other trackers
CVE, NVD, CERT, CVE Details, CIRCL, Arch Linux, Debian, Red Hat, Ubuntu, Gentoo, SUSE (Bugzilla), SUSE (CVE), Mageia
Mailing lists
oss-security, full-disclosure, bugtraq
Exploits
Exploit DB, Metasploit
Forges
GitHub (code, issues), Aports (code, issues)

References

Type URI
security@open-xchange.com https://documentation.open-xchange.com/dovecot/security/advisories/csaf/2026/oxdc-adv-2026-0002.json

Match rules

CPE URI Source package Min version Max version
cpe:2.3:a:dovecot:dovecot:*:*:*:*:*:*:*:* dovecot >= None < 2.4.4
cpe:2.3:a:open-xchange:dovecot:*:*:*:*:pro:*:*:* dovecot >= None < 3.1.5

Vulnerable and fixed packages

Source package Branch Version Maintainer Status
dovecot edge-main 2.4.3-r1 Natanael Copa <ncopa@alpinelinux.org> possibly vulnerable
dovecot edge-main 2.4.3-r0 Natanael Copa <ncopa@alpinelinux.org> possibly vulnerable
dovecot edge-main 2.4.2-r2 Natanael Copa <ncopa@alpinelinux.org> possibly vulnerable
dovecot edge-main 2.4.2-r1 Natanael Copa <ncopa@alpinelinux.org> possibly vulnerable
dovecot edge-main 2.4.2-r0 Natanael Copa <ncopa@alpinelinux.org> possibly vulnerable
dovecot edge-main 2.4.1-r3 Natanael Copa <ncopa@alpinelinux.org> possibly vulnerable
dovecot edge-main 2.4.1-r2 Natanael Copa <ncopa@alpinelinux.org> possibly vulnerable
dovecot edge-main 2.4.1-r1 Natanael Copa <ncopa@alpinelinux.org> possibly vulnerable
dovecot edge-main 2.4.1-r0 Natanael Copa <ncopa@alpinelinux.org> possibly vulnerable
dovecot edge-main 2.4.0-r1 Natanael Copa <ncopa@alpinelinux.org> possibly vulnerable
dovecot edge-main 2.4.0-r0 Natanael Copa <ncopa@alpinelinux.org> possibly vulnerable
dovecot edge-main 2.3.21.1-r0 Natanael Copa <ncopa@alpinelinux.org> possibly vulnerable
dovecot edge-main 2.3.19.1-r6 Natanael Copa <ncopa@alpinelinux.org> possibly vulnerable
dovecot edge-main 2.3.19.1-r5 Natanael Copa <ncopa@alpinelinux.org> possibly vulnerable
dovecot edge-main 2.3.15-r0 Natanael Copa <ncopa@alpinelinux.org> possibly vulnerable
dovecot edge-main 2.3.13-r0 None possibly vulnerable
dovecot edge-main 2.3.11.3-r0 None possibly vulnerable
dovecot edge-main 2.3.10.1-r0 None possibly vulnerable
dovecot edge-main 2.3.9.3-r0 None possibly vulnerable
dovecot edge-main 2.3.9.2-r0 None possibly vulnerable
dovecot edge-main 2.3.7.2-r0 None possibly vulnerable
dovecot edge-main 2.3.6-r0 None possibly vulnerable
dovecot edge-main 2.3.5.1-r0 None possibly vulnerable
dovecot edge-main 2.3.4.1-r0 None possibly vulnerable
dovecot edge-main 2.3.1-r0 None possibly vulnerable
dovecot 3.23-main 2.4.3-r1 Natanael Copa <ncopa@alpinelinux.org> possibly vulnerable
dovecot 3.23-main 2.4.3-r0 Natanael Copa <ncopa@alpinelinux.org> possibly vulnerable
dovecot 3.23-main 2.4.2-r1 Natanael Copa <ncopa@alpinelinux.org> possibly vulnerable
dovecot 3.22-main 2.4.1-r2 Natanael Copa <ncopa@alpinelinux.org> possibly vulnerable
dovecot 3.22-main 2.3.21.1-r0 None possibly vulnerable
dovecot 3.22-main 2.3.19.1-r5 None possibly vulnerable
dovecot 3.22-main 2.3.15-r0 None possibly vulnerable
dovecot 3.22-main 2.3.13-r0 None possibly vulnerable
dovecot 3.22-main 2.3.11.3-r0 None possibly vulnerable
dovecot 3.22-main 2.3.10.1-r0 None possibly vulnerable
dovecot 3.22-main 2.3.9.3-r0 None possibly vulnerable
dovecot 3.22-main 2.3.9.2-r0 None possibly vulnerable
dovecot 3.22-main 2.3.7.2-r0 None possibly vulnerable
dovecot 3.22-main 2.3.6-r0 None possibly vulnerable
dovecot 3.22-main 2.3.5.1-r0 None possibly vulnerable
dovecot 3.22-main 2.3.4.1-r0 None possibly vulnerable
dovecot 3.22-main 2.3.1-r0 None possibly vulnerable
dovecot 3.21-main 2.3.21.1-r0 Natanael Copa <ncopa@alpinelinux.org> possibly vulnerable
dovecot 3.21-main 2.3.19.1-r5 None possibly vulnerable
dovecot 3.21-main 2.3.15-r0 None possibly vulnerable
dovecot 3.21-main 2.3.13-r0 None possibly vulnerable
dovecot 3.21-main 2.3.11.3-r0 None possibly vulnerable
dovecot 3.21-main 2.3.10.1-r0 None possibly vulnerable
dovecot 3.21-main 2.3.9.3-r0 None possibly vulnerable
dovecot 3.21-main 2.3.9.2-r0 None possibly vulnerable
dovecot 3.21-main 2.3.7.2-r0 None possibly vulnerable
dovecot 3.21-main 2.3.6-r0 None possibly vulnerable
dovecot 3.21-main 2.3.5.1-r0 None possibly vulnerable
dovecot 3.21-main 2.3.4.1-r0 None possibly vulnerable
dovecot 3.21-main 2.3.1-r0 None possibly vulnerable
dovecot 3.20-main 2.3.21.1-r0 Natanael Copa <ncopa@alpinelinux.org> possibly vulnerable
dovecot 3.20-main 2.3.19.1-r5 None possibly vulnerable
dovecot 3.20-main 2.3.15-r0 None possibly vulnerable
dovecot 3.20-main 2.3.13-r0 None possibly vulnerable
dovecot 3.20-main 2.3.11.3-r0 None possibly vulnerable
dovecot 3.20-main 2.3.10.1-r0 None possibly vulnerable
dovecot 3.20-main 2.3.9.3-r0 None possibly vulnerable
dovecot 3.20-main 2.3.9.2-r0 None possibly vulnerable
dovecot 3.20-main 2.3.7.2-r0 None possibly vulnerable
dovecot 3.20-main 2.3.6-r0 None possibly vulnerable
dovecot 3.20-main 2.3.5.1-r0 None possibly vulnerable
dovecot 3.20-main 2.3.4.1-r0 None possibly vulnerable
dovecot 3.20-main 2.3.1-r0 None possibly vulnerable
dovecot 3.19-main 2.3.21-r17 Natanael Copa <ncopa@alpinelinux.org> possibly vulnerable
dovecot 3.19-main 2.3.19.1-r5 None possibly vulnerable
dovecot 3.19-main 2.3.15-r0 None possibly vulnerable
dovecot 3.19-main 2.3.13-r0 None possibly vulnerable
dovecot 3.19-main 2.3.11.3-r0 None possibly vulnerable
dovecot 3.19-main 2.3.10.1-r0 None possibly vulnerable
dovecot 3.19-main 2.3.9.3-r0 None possibly vulnerable
dovecot 3.19-main 2.3.9.2-r0 None possibly vulnerable
dovecot 3.19-main 2.3.7.2-r0 None possibly vulnerable
dovecot 3.19-main 2.3.6-r0 None possibly vulnerable
dovecot 3.19-main 2.3.5.1-r0 None possibly vulnerable
dovecot 3.19-main 2.3.4.1-r0 None possibly vulnerable
dovecot 3.19-main 2.3.1-r0 None possibly vulnerable