CVE-2026-35091
Full vulnerability record from the local CVENow database.
Description
A flaw was found in Corosync. A remote unauthenticated attacker can exploit a wrong return value vulnerability in the Corosync membership commit token sanity check by sending a specially crafted User Datagram Protocol (UDP) packet. This can lead to an out-of-bounds read, causing a denial of service (DoS) and potentially disclosing limited memory contents
Severity
HIGH
CVSS score
8.2
(v3.1)
Vulnerability status
Modified
Source identifier
Published
2026-04-01 14:16:57.040000
Last modified
2026-10-26 21:10:00.170000
View original CVE JSON
{
"id": "CVE-2026-35091",
"sourceIdentifier": "[email protected]",
"published": "2026-04-01T14:16:57.040",
"lastModified": "2026-10-26T21:10:00.170",
"vulnStatus": "Modified",
"cveTags": [],
"descriptions": [
{
"lang": "en",
"value": "A flaw was found in Corosync. A remote unauthenticated attacker can exploit a wrong return value vulnerability in the Corosync membership commit token sanity check by sending a specially crafted User Datagram Protocol (UDP) packet. This can lead to an out-of-bounds read, causing a denial of service (DoS) and potentially disclosing limited memory contents"
},
{
"lang": "es",
"value": "Se encontró un fallo en Corosync. Un atacante remoto no autenticado puede explotar una vulnerabilidad de valor de retorno incorrecto en la comprobación de integridad del token de confirmación de membresía de Corosync enviando un paquete de User Datagram Protocol (UDP) especialmente diseñado. Esto puede llevar a una lectura fuera de límites, causando una denegación de servicio (DoS) y potencialmente revelando contenido limitado de la memoria. Esta vulnerabilidad afecta a Corosync cuando se ejecuta en modo totemudp/totemudpu, que es la configuración predeterminada."
}
],
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{
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