Buffer Miscalculation in GLib Base64 Encoding Affects Software Applications
CVE-2026-1484

4.2MEDIUM

Key Information:

Vendor

Red Hat
Status
Red Hat Enterprise Linux 10
Red Hat Enterprise Linux 6
Red Hat Enterprise Linux 7
Red Hat Enterprise Linux 8
Vendor
CVE Published:
27 January 2026

What is CVE-2026-1484?

A vulnerability exists within the GLib Base64 encoding routine, particularly when handling large input data. This flaw arises from improper integer type usage during length calculations, which can lead to miscalculated buffer boundaries. Consequently, applications utilizing GLib to process untrusted or oversized Base64 input may experience crashes or erratic behavior, potentially compromising application stability and data integrity.

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References

https://access.redhat.com/security/cve/CVE-2026-1484
vdb-entryx_refsource_REDHAT
https://bugzilla.redhat.com/show_bug.cgi?id=2433259
issue-trackingx_refsource_REDHAT

CVSS V3.1

Score:
4.2
Severity:
MEDIUM
Confidentiality:
None
Integrity:
Low
Availability:
None
Attack Vector:
Network
Attack Complexity:
High
Privileges Required:
None
User Interaction:
Required
Scope:
Unchanged

Timeline

  • Vulnerability published

  • Vulnerability Reserved

Credit

Red Hat would like to thank treeplus for reporting this issue.
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