CVE-2026-58013

Glib: buffer over-read in glib/giochannel.c via "g_io_channel_read_line_backend"

CVSS 3.1 6.5 MEDIUMCheck source for fixed versionsKEV status unknown

Original advisory

cve-program · CVE-2026-58013

Published

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.

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Affected versions, risk and source history

Exploitation and risk

Source status

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Risk history

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Advisory history

5 saved versions

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10 Nov 2026 21:21:24 UTC