CVE-2026-22184
HIGH7.8EPSS 0.01%Published: 1/7/2026Modified: 4/14/2026
Also known as:ALPINE-CVE-2026-22184
Description
zlib versions up to and including 1.3.1.2 include a global buffer overflow in the untgz utility located under contrib/untgz. The vulnerability is limited to the standalone demonstration utility and does not affect the core zlib compression library. The flaw occurs when a user executes the untgz command with an excessively long archive name supplied via the command line, leading to an out-of-bounds write in a fixed-size global buffer.
Affected packages (2)
- Alpine/zlibfrom 0, < 1.3.2-r0
- Debian/zlibfrom 0, < 1:1.2.6.dfsg-1
CVSS scores
| Source | Version | Severity | Vector |
|---|---|---|---|
| osv | CVSS 3.1 | HIGH7.8 | CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H |