CVE-2026-27851
When safe filter is used with variable expansion, all following pipelines on the same string are incorrectly interpreted as safe too, enabli
CVSS
7.4
High
EPSS
0.4%
p35
KEV
—
Exploit Today
10
0-100
Published: May 12, 2026 · Last modified: Jul 15, 2026 · CWE-235 · CWE-89
0.4%EPSS · 30 days0.4%
2026-08-262026-09-23
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.
- documentation.open-xchange.comhttps://documentation.open-xchange.com/dovecot/security/advisories/csaf/2026/oxdc-adv-2026-0002.json
- access.redhat.comhttps://access.redhat.com/security/cve/CVE-2026-27851
- bugzilla.redhat.comhttps://bugzilla.redhat.com/show_bug.cgi?id=2476471
- security.access.redhat.comhttps://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-27851.json
CVECVSSEPSSKEVRExploitTitleMod.
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