{"id":"ALPINE-CVE-2026-22184","details":"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.","modified":"2026-04-14T16:32:07.574001Z","published":"2026-01-07T21:16:01.563Z","upstream":["CVE-2026-22184"],"references":[{"type":"ADVISORY","url":"https://security.alpinelinux.org/vuln/CVE-2026-22184"}],"affected":[{"package":{"name":"zlib","ecosystem":"Alpine:v3.20","purl":"pkg:apk/alpine/zlib?arch=source"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"1.3.2-r0"}]}],"versions":["1.2.10-r0","1.2.11-r0","1.2.11-r1","1.2.11-r2","1.2.11-r3","1.2.11-r4","1.2.12-r0","1.2.12-r1","1.2.12-r2","1.2.12-r3","1.2.13-r0","1.2.13-r1","1.2.13-r2","1.2.3.3-r2","1.2.3.3-r3","1.2.3.3-r4","1.2.3.3-r5","1.2.3.3-r6","1.2.3.3-r7","1.2.3.4-r0","1.2.3.4-r1","1.2.3.7-r0","1.2.3.7-r1","1.2.3.9-r0","1.2.4-r0","1.2.4-r1","1.2.5-r0","1.2.5-r1","1.2.5-r2","1.2.6-r0","1.2.7-r0","1.2.7-r1","1.2.8-r0","1.2.8-r1","1.2.8-r2","1.3-r0","1.3-r1","1.3-r2","1.3.1-r0","1.3.1-r1"],"ecosystem_specific":{},"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/alpine/ALPINE-CVE-2026-22184.json"}},{"package":{"name":"zlib","ecosystem":"Alpine:v3.21","purl":"pkg:apk/alpine/zlib?arch=source"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"1.3.2-r0"}]}],"versions":["1.2.10-r0","1.2.11-r0","1.2.11-r1","1.2.11-r2","1.2.11-r3","1.2.11-r4","1.2.12-r0","1.2.12-r1","1.2.12-r2","1.2.12-r3","1.2.13-r0","1.2.13-r1","1.2.13-r2","1.2.3.3-r2","1.2.3.3-r3","1.2.3.3-r4","1.2.3.3-r5","1.2.3.3-r6","1.2.3.3-r7","1.2.3.4-r0","1.2.3.4-r1","1.2.3.7-r0","1.2.3.7-r1","1.2.3.9-r0","1.2.4-r0","1.2.4-r1","1.2.5-r0","1.2.5-r1","1.2.5-r2","1.2.6-r0","1.2.7-r0","1.2.7-r1","1.2.8-r0","1.2.8-r1","1.2.8-r2","1.3-r0","1.3-r1","1.3-r2","1.3.1-r0","1.3.1-r1","1.3.1-r2"],"ecosystem_specific":{},"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/alpine/ALPINE-CVE-2026-22184.json"}},{"package":{"name":"zlib","ecosystem":"Alpine:v3.22","purl":"pkg:apk/alpine/zlib?arch=source"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"1.3.2-r0"}]}],"versions":["1.2.10-r0","1.2.11-r0","1.2.11-r1","1.2.11-r2","1.2.11-r3","1.2.11-r4","1.2.12-r0","1.2.12-r1","1.2.12-r2","1.2.12-r3","1.2.13-r0","1.2.13-r1","1.2.13-r2","1.2.3.3-r2","1.2.3.3-r3","1.2.3.3-r4","1.2.3.3-r5","1.2.3.3-r6","1.2.3.3-r7","1.2.3.4-r0","1.2.3.4-r1","1.2.3.7-r0","1.2.3.7-r1","1.2.3.9-r0","1.2.4-r0","1.2.4-r1","1.2.5-r0","1.2.5-r1","1.2.5-r2","1.2.6-r0","1.2.7-r0","1.2.7-r1","1.2.8-r0","1.2.8-r1","1.2.8-r2","1.3-r0","1.3-r1","1.3-r2","1.3.1-r0","1.3.1-r1","1.3.1-r2"],"ecosystem_specific":{},"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/alpine/ALPINE-CVE-2026-22184.json"}},{"package":{"name":"zlib","ecosystem":"Alpine:v3.23","purl":"pkg:apk/alpine/zlib?arch=source"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"1.3.2-r0"}]}],"versions":["1.2.10-r0","1.2.11-r0","1.2.11-r1","1.2.11-r2","1.2.11-r3","1.2.11-r4","1.2.12-r0","1.2.12-r1","1.2.12-r2","1.2.12-r3","1.2.13-r0","1.2.13-r1","1.2.13-r2","1.2.3.3-r2","1.2.3.3-r3","1.2.3.3-r4","1.2.3.3-r5","1.2.3.3-r6","1.2.3.3-r7","1.2.3.4-r0","1.2.3.4-r1","1.2.3.7-r0","1.2.3.7-r1","1.2.3.9-r0","1.2.4-r0","1.2.4-r1","1.2.5-r0","1.2.5-r1","1.2.5-r2","1.2.6-r0","1.2.7-r0","1.2.7-r1","1.2.8-r0","1.2.8-r1","1.2.8-r2","1.3-r0","1.3-r1","1.3-r2","1.3.1-r0","1.3.1-r1","1.3.1-r2"],"ecosystem_specific":{},"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/alpine/ALPINE-CVE-2026-22184.json"}}],"schema_version":"1.7.5","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H"}]}