CVE-2026-0988
glib: GLib: Denial of Service via Integer Overflow in g_buffered_input_stream_peek()
Severity
LowRed Hat Product Security
CVSS 3.1
Review impact separately from score.
Published · January 15, 2026
Updated · July 3, 2026
Description
A flaw was found in glib. Missing validation of offset and count parameters in the g_buffered_input_stream_peek() function can lead to an integer overflow during length calculation. When specially crafted values are provided, this overflow results in an incorrect size being passed to memcpy(), triggering a buffer overflow. This can cause application crashes, leading to a Denial of Service (DoS).
Statement
This vulnerability is rated Moderate for Red Hat. An integer overflow in the g_buffered_input_stream_peek() function of the GLib library can lead to a Denial of Service. Exploitation requires specially crafted input and is subject to strict preconditions, primarily causing application crashes.
CVSS score applicability
The CVSS score(s) listed for this vulnerability do not reflect the associated product's status, and are included for informational purposes to better understand the severity of this vulnerability.
Mitigation
Mitigation for this issue is either not available or the currently available options do not meet the Red Hat Product Security criteria comprising ease of use and deployment, applicability to widespread installation base, or stability.
CVSS / CWE
CVSS 3.1 · 3.7CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:L
CWE-190 · Integer Overflow or Wraparound