PT-2026-62040 · Red Hat · Red Hat Enterprise Linux 10

CVE-2026-12548 · Published 2026-07-21 · Updated 2026-07-21

NVD

CVSS v3.1

4.2

Medium

Base vector

AV:N/AC:H/PR:N/UI:R/S:U/C:L/I:N/A:L

A heap out-of-bounds read flaw was found in libsoup. When parsing multipart HTTP messages, an integer type mismatch between the caller and soup headers parse() can cause the length parameter to be incorrectly truncated, leading to a heap buffer over-read. A remote attacker could use this flaw to crash an application using libsoup or potentially disclose heap memory contents.

Fix

Out of bounds Read

Weakness Enumeration

CWE-125

Related Identifiers

CVE-2026-12548

Affected Products

Red Hat Enterprise Linux 10

References · 4

• https://nvd.nist.gov/vuln/detail/CVE-2026-12548 · Security Note
• https://gitlab.gnome.org/GNOME/libsoup/-/work_items/512 · Note
• https://access.redhat.com/security/cve/CVE-2026-12548 · Note
• https://bugzilla.redhat.com/show_bug.cgi?id=2489996 · Note