CVE-2026-4897
Full vulnerability record from the local CVENow database.
Description
A flaw was found in polkit. A local user can exploit this by providing a specially crafted, excessively long input to the `polkit-agent-helper-1` setuid binary via standard input (stdin). This unbounded input can lead to an out-of-memory (OOM) condition, resulting in a Denial of Service (DoS) for the system.
Severity
MEDIUM
CVSS score
5.5
(v3.1)
Vulnerability status
Modified
Source identifier
Published
2026-03-26 15:16:43.017000
Last modified
2026-11-05 22:18:45.343000
View original CVE JSON
{
"id": "CVE-2026-4897",
"sourceIdentifier": "[email protected]",
"published": "2026-03-26T15:16:43.017",
"lastModified": "2026-11-05T22:18:45.343",
"vulnStatus": "Modified",
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},
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"value": "Se encontró una vulnerabilidad en polkit. Un usuario local puede explotar esto al proporcionar una entrada especialmente diseñada y excesivamente larga al binario setuid 'polkit-agent-helper-1' a través de la entrada estándar (stdin). Esta entrada sin límites puede llevar a una condición de falta de memoria (OOM), lo que resulta en una denegación de servicio (DoS) para el sistema."
}
],
"affected": [
{
"source": "[email protected]",
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"attackVector": "LOCAL",
"attackComplexity": "LOW",
"privilegesRequired": "LOW",
"userInteraction": "NONE",
"scope": "UNCHANGED",
"confidentialityImpact": "NONE",
"integrityImpact": "NONE",
"availabilityImpact": "HIGH"
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"description": [
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"source": "[email protected]"
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}