CVE-2026-22184 — zlib <= 1.3.1.2 untgz Global Buffer Overflow in TGZfname()
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 demon…
Published: 2026-01-07 · CVSS: 4.6 · CVSS 4.0
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.
Source: CVE Program · Revision 8b16575c39f1e1810c5e863010da073d2d3285e7