crítica
CVE-2026-27851
dovecot: Dovecot: SQL/LDAP injection via incorrect safe filter interpretation with variable expansion
En la Trivy database desde, como mínimo, el 24 oct 2026, 07:11 UTCNo consta cuándo entró antes de ese build.
Severidad por fuente
NVD9.1CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N
Red Hat7.4CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N
La etiqueta propia de Trivy es CRITICAL. Crítica según NVD. Más baja según Red Hat (alta), Ubuntu (media).
Descripción
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.
Paquetes afectados y versiones corregidas
| Fuente | Paquete | Corregido en |
|---|---|---|
| alpine 3.23 | dovecot | 2.4.4-r0 |
| alpine 3.24 | dovecot | 2.4.4-r0 |
| alpine edge | dovecot | 2.4.4-r0 |
| debian 13 | dovecot | 1:2.4.1+dfsg1-6+deb13u6 |
| debian 14 | dovecot | 1:2.4.4+dfsg1-1 |
| rapidfort alpine 3.20 | dovecot | 2.4.4-r0 |
| rapidfort alpine 3.21 | dovecot | 2.4.4-r0 |
| rapidfort alpine 3.22 | dovecot | 2.4.4-r0 |
| rapidfort alpine 3.23 | dovecot | 2.4.4-r0 |
| rapidfort debian 12 | dovecot | 1:2.4.1+dfsg1-6+deb13u6, 1:2.4.4+dfsg1-1 |
| rapidfort debian 13 | dovecot | 1:2.4.1+dfsg1-6+deb13u6, 1:2.4.4+dfsg1-1 |
| rapidfort fedora 43 | dovecot, dovecot-devel, dovecot-mysql y 2 más | 1:2.4.4-1.fc43 |
Mostrar las 23 entradas de 15 fuentes
| Fuente | Paquete | Corregido en |
|---|---|---|
| alpine 3.23 | dovecot | 2.4.4-r0 |
| alpine 3.24 | dovecot | 2.4.4-r0 |
| alpine edge | dovecot | 2.4.4-r0 |
| debian 13 | dovecot | 1:2.4.1+dfsg1-6+deb13u6 |
| debian 14 | dovecot | 1:2.4.4+dfsg1-1 |
| rapidfort alpine 3.20 | dovecot | 2.4.4-r0 |
| rapidfort alpine 3.21 | dovecot | 2.4.4-r0 |
| rapidfort alpine 3.22 | dovecot | 2.4.4-r0 |
| rapidfort alpine 3.23 | dovecot | 2.4.4-r0 |
| rapidfort debian 12 | dovecot | 1:2.4.1+dfsg1-6+deb13u6, 1:2.4.4+dfsg1-1 |
| rapidfort debian 13 | dovecot | 1:2.4.1+dfsg1-6+deb13u6, 1:2.4.4+dfsg1-1 |
| rapidfort fedora 43 | dovecot | 1:2.4.4-1.fc43 |
| rapidfort fedora 43 | dovecot-devel | 1:2.4.4-1.fc43 |
| rapidfort fedora 43 | dovecot-mysql | 1:2.4.4-1.fc43 |
| rapidfort fedora 43 | dovecot-pgsql | 1:2.4.4-1.fc43 |
| rapidfort fedora 43 | dovecot-pigeonhole | 1:2.4.4-1.fc43 |
| Red Hat | dovecot | sin corrección indicada |
| Red Hat | dovecot-devel | sin corrección indicada |
| Red Hat | dovecot-mysql | sin corrección indicada |
| Red Hat | dovecot-pgsql | sin corrección indicada |
| Red Hat | dovecot-pigeonhole | sin corrección indicada |
| ubuntu 25.10 | dovecot | 1:2.4.1+dfsg1-5ubuntu4.2 |
| ubuntu 26.04 | dovecot | 1:2.4.2+dfsg1-3ubuntu2.1 |
Referencias
- https://access.redhat.com/security/cve/CVE-2026-27851
- https://bugzilla.redhat.com/show_bug.cgi?id=2476471
- https://documentation.open-xchange.com/dovecot/security/advisories/csaf/2026/oxdc-adv-2026-0002.json
- https://nvd.nist.gov/vuln/detail/CVE-2026-27851
- https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-27851.json
- https://ubuntu.com/security/notices/USN-8365-1
- https://www.cve.org/CVERecord?id=CVE-2026-27851
- https://www.openwall.com/lists/oss-security/2026/05/12/6