CVE-2026-12548
Libsoup: heap out-of-bounds read in libsoup due to integer truncation
- State
- Published
- Severity
- 4.2 Medium
- Published
- Jul 21, 2026
- Updated
- Jul 23, 2026
- Reserved
- Jun 17, 2026
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.
Scores
| CVSS | Score | Vector | Source |
|---|---|---|---|
| 3.1 | 4.2 Medium | CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:L/I:N/A:L | redhat |
Weaknesses
- CWE-125 Out-of-bounds Read
Affected Products
| Product | Versions |
|---|---|
Red Hat Enterprise Linux 10Red Hat |
References
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