CVE-2026-27851
Full vulnerability record from the local CVENow database.
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.
Severity
CRITICAL
CVSS score
9.1
(v3.1)
Vulnerability status
Modified
Source identifier
Published
2026-05-12 14:16:56.857000
Last modified
2026-10-26 18:10:00.173000
View original CVE JSON
{
"id": "CVE-2026-27851",
"sourceIdentifier": "[email protected]",
"published": "2026-05-12T14:16:56.857",
"lastModified": "2026-10-26T18:10:00.173",
"vulnStatus": "Modified",
"cveTags": [],
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"lang": "en",
"value": "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."
},
{
"lang": "es",
"value": "Cuando se usa el filtro safe con expansión de variables, todas las tuberías siguientes en la misma cadena se interpretan incorrectamente como seguras también, permitiendo que datos no seguros se desescapen. Esto puede habilitar ataques de inyección SQL / LDAP cuando se usa en autenticación. Evite usar el filtro safe hasta que esté en una versión corregida. No se conocen exploits disponibles públicamente."
}
],
"affected": [
{
"source": "[email protected]",
"affectedData": [
{
"vendor": "Open-Xchange GmbH",
"product": "OX Dovecot Pro",
"defaultStatus": "unaffected",
"modules": [
"core"
],
"versions": [
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{
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"affectedData": [
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"metrics": {
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"privilegesRequired": "NONE",
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"ssvcV203": [
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{
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"source": "[email protected]",
"type": "Secondary",
"description": [
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"references": [
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"url": "https://documentation.open-xchange.com/dovecot/security/advisories/csaf/2026/oxdc-adv-2026-0002.json",
"source": "[email protected]",
"tags": [
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{
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"source": "0b0ca135-0b70-47e7-9f44-1890c2a1c46c"
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}