CVE-2026-72522
Medium
Description
libexpat before 2.8.3 has an out-of-bounds read and resultant infinite loop because low surrogates are treated the same as high surrogates during Unicode processing in the *_toUtf16 functions.
SeverityMedium
CVSS6.2
Exploit probability—
ProductLibexpat
PublishedAug 10, 2026
First seenAug 10, 2026
Weakness typeCWE-125Out-of-bounds read
How to fix
Update
- libexpat project libexpat2.8.3 or later
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| libexpat project libexpat | v < 2.8.3 | 2.8.3 |
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