CVE-2026-35201
rdiscount has an Out-of-bounds Read
5.9
MEDIUM
CVSS 3.1
EPSS 0.27%
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.
How to fix CVE-2026-35201
To remediate CVE-2026-35201, upgrade the affected package to a fixed version below.
- —no fix listed
- —upgrade to 2.2.7.4 or later
Is CVE-2026-35201 being exploited?
Low — EPSS is 0.3%, meaning exploitation activity has not been observed at scale.
Affected packages (2)
- from 0
- >= 1.3.1.1, < 2.2.7.4
CVSS scores
| Source | Version | Severity | Vector |
|---|---|---|---|
| osv | CVSS 3.1 | MEDIUM5.9 | CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H |