CVE-2026-1489

MEDIUM

5.4

Description

A flaw was found in GLib. An integer overflow vulnerability in its Unicode case conversion implementation can lead to memory corruption. By processing specially crafted and extremely large Unicode strings, an attacker could trigger an undersized memory allocation, resulting in out-of-bounds writes. This could cause applications utilizing GLib for string conversion to crash or become unstable.

CVE Details

CVSS v3.1 Score5.4

SeverityMEDIUM

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

Attack VectorNETWORK

ComplexityLOW

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-2026-1489(secalert@redhat.com)

https://bugzilla.redhat.com/show_bug.cgi?id=2433348(secalert@redhat.com)

https://gitlab.gnome.org/GNOME/glib/-/issues/3872(secalert@redhat.com)

IOC Correlations

No correlations recorded

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