CVE-2019-9192: GNU Glibc

High severity, CVSS 7.5. EPSS: 2.4% chance of exploitation in the next 30 days.

In the GNU C Library (aka glibc or libc6) through 2.29, check_dst_limits_calc_pos_1 in posix/regexec.c has Uncontrolled Recursion, as demonstrated by '(|)(\\1\\1)*' in grep, a different issue than CVE-2018-20796. NOTE: the software maintainer disputes that this is a vulnerability because the behavior occurs only with a crafted pattern

Affected products

• GNU Glibc: up to and including 2.29

Published 2019-02-26. Last modified 2026-06-17.