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CVE-2026-1484

Good to know:

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Date: January 27, 2026

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.

Severity Score

Related Resources (4)

https://bugzilla.redhat.com/show_bug.cgi?id=2433259
https://nvd.nist.gov/vuln/detail/CVE-2026-1484
https://access.redhat.com/security/cve/CVE-2026-1484
https://www.mend.io/vulnerability-database/CVE-2026-1484

Severity Score

Weakness Type (CWE)

Out-of-bounds Write

CWE-787

CVSS v3.1

Base Score:
Attack Vector (AV): NETWORK
Attack Complexity (AC): HIGH
Privileges Required (PR): NONE
User Interaction (UI): REQUIRED
Scope (S): UNCHANGED
Confidentiality (C): NONE
Integrity (I): LOW
Availability (A): LOW

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