CVE-2026-56132
Expat Heap-Based Buffer Overflow
Description
In libexpat before 2.8.2, there is a heap-based buffer overflow in doProlog in xmlparse.c because scaffold backing array reallocation is mishandled when there is data-structure sharing across parsers.
INFO
Published Date :
June 19, 2026, 3 a.m.
Last Modified :
June 19, 2026, 3 a.m.
Remotely Exploit :
No
Source :
mitre
Affected Products
The following products are affected by CVE-2026-56132
vulnerability.
Even if cvefeed.io is aware of the exact versions of the
products
that
are
affected, the information is not represented in the table below.
No affected product recoded yet
CVSS Scores
| Score | Version | Severity | Vector | Exploitability Score | Impact Score | Source |
|---|---|---|---|---|---|---|
| CVSS 3.1 | MEDIUM | 8254265b-2729-46b6-b9e3-3dfca2d5bfca |
Solution
- Update libexpat to version 2.8.2 or later.
- Apply vendor-provided patches for libexpat.
- Rebuild affected applications using the updated library.
We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).
Results are limited to the first 15 repositories due to potential performance issues.
The following list is the news that have been mention
CVE-2026-56132 vulnerability anywhere in the article.