CVE-2026-35201

Name
CVE-2026-35201
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.
NVD Severity
unknown
Other trackers
CVE, NVD, CERT, CVE Details, CIRCL, Arch Linux, Debian, Red Hat, Ubuntu, Gentoo, SUSE (Bugzilla), SUSE (CVE), Mageia
Mailing lists
oss-security, full-disclosure, bugtraq
Exploits
Exploit DB, Metasploit
Forges
GitHub (code, issues), Aports (code, issues)

References

Type URI
security-advisories@github.com https://github.com/davidfstr/rdiscount/security/advisories/GHSA-6r34-94wq-jhrc

Match rules

CPE URI Source package Min version Max version
cpe:2.3:a:dafoster:rdiscount:*:*:*:*:*:ruby:*:* ruby-rdiscount >= 1.3.1.1 < 2.2.7.4

Vulnerable and fixed packages

Source package Branch Version Maintainer Status
ruby-rdiscount edge-community 2.2.7.3-r1 Jakub Jirutka <jakub@jirutka.cz> possibly vulnerable
ruby-rdiscount edge-community 2.2.7.3-r0 Jakub Jirutka <jakub@jirutka.cz> possibly vulnerable
ruby-rdiscount 3.23-community 2.2.7.3-r1 Jakub Jirutka <jakub@jirutka.cz> possibly vulnerable