CVE-2026-35201

Discount has an Out-of-bounds Read in rdiscount

State
Published
Severity
5.9 Medium
Published
Apr 6, 2026
Updated
Apr 7, 2026
Reserved
Apr 1, 2026

Read the record on cve.org

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.

Scores

CVSSScoreVectorSource
3.15.9 MediumCVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:HGitHub_M

Weaknesses

Affected Products

ProductVersions
rdiscountdavidfstr
  • >= 1.3.1.1, < 2.2.7.4Affected

References

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