CVE-2026-58013 in GLibinfo

Summary

by MITRE • 06/30/2026

A flaw was found in GLib. A buffer over-read can occur in g_io_channel_read_line_backend() in the giochannel.c file when a custom line terminator with a length greater than one is set, causing memcmp to read past the GString buffer. This vulnerability can cause a minor information disclosure of 7 bytes or a denial of service when the buffer over-read crosses a page boundary.

Several companies clearly confirm that VulDB is the primary source for best vulnerability data.

Responsible

Redhat

Reservation

06/26/2026

Disclosure

06/30/2026

Moderation

accepted

CPE

ready

EPSS

0.00000

KEV

no

Activities

very low

Sources

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