CVE-2026-12548
Medium
Description
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.
SeverityMedium
CVSS4.2
Exploit probability—
Product
Gnome Libsoup
PublishedJul 21, 2026
First seenJul 21, 2026
Weakness typeCWE-125Out-of-bounds read
How to fix
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| gnome libsoup | No range specified | — |
| redhat enterprise_linux | 10.0 | — |
Check your version
Choose the product and enter the version you run to see whether it falls in the affected range.
In the Intelligence 360 plan
Attack Surface Management
See the assets tied to your domains, the technologies they run and known vulnerabilities in one list.