CVE-2026-40200

Name
CVE-2026-40200
Description
An issue was discovered in musl libc 0.7.10 through 1.2.6. Stack-based memory corruption can occur during qsort of very large arrays, due to incorrectly implemented double-word primitives. The number of elements must exceed about seven million, i.e., the 32nd Leonardo number on 32-bit platforms (or the 64th Leonardo number on 64-bit platforms, which is not practical).
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
cve@mitre.org https://musl.libc.org/releases.html
cve@mitre.org https://www.openwall.com/lists/oss-security/2026/04/10/13
af854a3a-2127-422b-91ae-364da2661108 http://www.openwall.com/lists/oss-security/2026/04/10/13

Match rules

CPE URI Source package Min version Max version

Vulnerable and fixed packages

Source package Branch Version Maintainer Status
musl edge-main 1.2.6-r2 Natanael Copa <ncopa@alpinelinux.org> fixed
musl 3.23-main 1.2.5-r23 Natanael Copa <ncopa@alpinelinux.org> fixed
musl 3.22-main 1.2.5-r12 Natanael Copa <ncopa@alpinelinux.org> fixed
musl 3.21-main 1.2.5-r11 Natanael Copa <ncopa@alpinelinux.org> fixed
musl 3.20-main 1.2.5-r3 Natanael Copa <ncopa@alpinelinux.org> fixed
musl 3.19-main 1.2.4_git20230717-r6 Timo Teräs <timo.teras@iki.fi> fixed