CVE-2026-1484

MEDIUM

4.2

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.

CVE Details

CVSS v3.1 Score4.2

SeverityMEDIUM

CVSS VectorCVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:N/I:L/A:L

Attack VectorNETWORK

ComplexityHIGH

Privileges RequiredNONE

User InteractionREQUIRED

Published1/27/2026

Last Modified3/19/2026

Sourcenvd

Honeypot Sightings0

Weaknesses (CWE)

CWE-787

References

https://access.redhat.com/security/cve/CVE-2026-1484(secalert@redhat.com)

https://bugzilla.redhat.com/show_bug.cgi?id=2433259(secalert@redhat.com)

https://gitlab.gnome.org/GNOME/glib/-/issues/3870(secalert@redhat.com)

IOC Correlations

No correlations recorded

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