cve-2026-1484

MEDIUM CVSS 4.2 nvd
Description

A flaw was found in the GLib Base64 encoding routine when processing very large input data. Due to incorrect use of integer types during length calculation, the library may miscalculate buffer boundaries. This can cause memory writes outside the allocated buffer. Applications that process untrusted or extremely large Base64 input using GLib may crash or behave unpredictably.

Timeline
Published
2026-01-27
Last Modified
2026-11-06
CVSS Details
Attack Vector
NETWORK
Attack Complexity
HIGH
Privileges Required
NONE
Affected Products

No product information available.

Weaknesses (CWE)
CVSS metrics
Version Base Severity Vector Exploitability Impact Source
3.1 4.2 MEDIUM CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:N/I:L/A:L 1.6 2.5 secalert@redhat.com
NVD metadata
NVD status
Deferred
Source identifier
secalert@redhat.com
References
Linked Vulnerabilities

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  "datePublished": "2026-01-27T14:15:56.050",
  "dateUpdated": "2026-11-06T08:17:25.037",
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        "value": "A flaw was found in the GLib Base64 encoding routine when processing very large input data. Due to incorrect use of integer types during length calculation, the library may miscalculate buffer boundaries. This can cause memory writes outside the allocated buffer. Applications that process untrusted or extremely large Base64 input using GLib may crash or behave unpredictably."
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        "value": "Se encontró una falla en la rutina de codificación Base64 de GLib al procesar datos de entrada muy grandes. Debido al uso incorrecto de tipos de enteros durante el cálculo de la longitud, la librería puede calcular erróneamente los límites del búfer. Esto puede causar escrituras en memoria fuera del búfer asignado. Las aplicaciones que procesan entrada Base64 no confiable o extremadamente grande usando GLib pueden fallar o comportarse de manera impredecible."
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  "severity": "MEDIUM",
  "source": "nvd",
  "title": "A flaw was found in the GLib Base64 encoding routine when processing very large input data"
}
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