{"id":"AZL-74003","summary":"CVE-2026-22184 affecting package optipng 0.7.8-5","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":"2026-04-21T04:38:39.650837Z","published":"2026-01-07T21:16:01Z","upstream":["CVE-2026-22184"],"references":[{"type":"WEB","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-22184"}],"affected":[{"package":{"name":"optipng","ecosystem":"Azure Linux:3","purl":"pkg:rpm/azure-linux/optipng"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"last_affected":"0.7.8-5"}]}],"database_specific":{"source":"https://github.com/microsoft/AzureLinuxVulnerabilityData/blob/main/osv/AZL-74003.json"}}],"schema_version":"1.7.5"}