PT-2026-64426 · Red Hat · Red Hat Enterprise Linux 10+4

CVE-2026-66337 · Published 2026-07-24 · Updated 2026-07-24

NVD

CVSS v3.1

6.5

Medium

Base vector

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

A flaw was found in libsoup. An unsigned integer underflow in the soup filter input stream read until() function causes a heap buffer over-read when parsing multipart HTTP responses. A malicious HTTP server can exploit this by sending a crafted multipart response, potentially causing the client application to crash or disclose sensitive heap memory.

Fix

Out of bounds Read

Weakness Enumeration

CWE-125

Related Identifiers

CVE-2026-66337

Affected Products

Red Hat Enterprise Linux 10

Red Hat Enterprise Linux 6

Red Hat Enterprise Linux 7

Red Hat Enterprise Linux 8

Red Hat Enterprise Linux 9

References · 3

• https://nvd.nist.gov/vuln/detail/CVE-2026-66337 · Security Note
• https://bugzilla.redhat.com/show_bug.cgi?id=2506949 · Note
• https://access.redhat.com/security/cve/CVE-2026-66337 · Note