CVE-2026-56131
MEDIUM
4.9
CVSS 3.1
Description
libexpat before 2.8.2 lacks handler call depth tracking for calls to XML_ResumeParser from within handlers in cases of a policy violation. Thus, a use-after-free can occur (similar to the CVE-2026-50219 situation).
Metadata
Severity & Metrics
4.9
MEDIUM CVSS 3.1
CVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:L
Affected products (1)
| Vendor | Product | Platform | Versions |
|---|---|---|---|
| libexpat project | libexpat | — | 0 < 2.8.2 |
Weakness (CWE)
| CWE | Source | Description |
|---|---|---|
| CWE-416 | cna | CWE-416 Use After Free |
CVSS scores (1)
| Score | Severity | Version | Source | Vector |
|---|---|---|---|---|
| 4.9 | MEDIUM | 3.1 | cna | CVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:L |
References (1)