CVE-2026-35201
Medium
Description
Discount is an implementation of John Gruber's Markdown markup language in C. From 1.3.1.1 to before 2.2.7.4, a signed length truncation bug causes an out-of-bounds read in the default Markdown parse path. Inputs larger than INT_MAX are truncated to a signed int before entering the native parser, allowing the parser to read past the end of the supplied buffer and crash the process. This vulnerability is fixed in 2.2.7.4.
SeverityMedium
CVSS5.9
Exploit probability—
ProductDafoster Rdiscount
PublishedApr 6, 2026
First seenApr 6, 2026
Weakness typeCWE-125Out-of-bounds read
How to fix
Update
- dafoster rdiscount2.2.7.4 or later
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| dafoster rdiscount | 1.3.1.1 ≤ v < 2.2.7.4 | 2.2.7.4 |
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