{"id":"UBUNTU-CVE-2026-47247","details":"libheif is a HEIF and AVIF file format decoder and encoder. Prior to version 1.22.0, two bugs in libheif chain to leak process heap memory as visible pixel values in decoded grid images. An attacker who uploads a crafted AVIF/HEIC file to any server-side image processor (WordPress, Sharp/libvips, ImageMagick, etc.) can recover heap data - including library function pointers sufficient to defeat ASLR, or any other secret - from the publicly-downloadable transcoded JPEG/PNG/WebP output. Local attack vectors are also possible. Version 1.22.0 fixes the issue.","modified":"2026-07-29T10:19:05.640211085Z","published":"2026-07-21T22:17:00Z","upstream":["CVE-2026-47247"],"references":[{"type":"REPORT","url":"https://ubuntu.com/security/CVE-2026-47247"},{"type":"REPORT","url":"https://www.cve.org/CVERecord?id=CVE-2026-47247"},{"type":"REPORT","url":"https://github.com/strukturag/libheif/security/advisories/GHSA-2vh6-whr3-cmq3"}],"affected":[{"package":{"name":"libheif","ecosystem":"Ubuntu:Pro:20.04:LTS","purl":"pkg:deb/ubuntu/libheif?arch=source&distro=esm-apps%2Ffocal"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"1.6.1-1ubuntu0.1~esm3"}]}],"versions":["1.5.0-1build1","1.5.1-1","1.5.1-1build1","1.6.0-1","1.6.1-1","1.6.1-1build1","1.6.1-1ubuntu0.1~esm1","1.6.1-1ubuntu0.1~esm2"],"ecosystem_specific":{"binaries":[{"binary_version":"1.6.1-1ubuntu0.1~esm3","binary_name":"heif-gdk-pixbuf"},{"binary_name":"heif-thumbnailer","binary_version":"1.6.1-1ubuntu0.1~esm3"},{"binary_name":"libheif-examples","binary_version":"1.6.1-1ubuntu0.1~esm3"},{"binary_name":"libheif1","binary_version":"1.6.1-1ubuntu0.1~esm3"}],"availability":"Available with Ubuntu Pro: https://ubuntu.com/pro"},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-47247.json"}},{"package":{"name":"libheif","ecosystem":"Ubuntu:Pro:22.04:LTS","purl":"pkg:deb/ubuntu/libheif?arch=source&distro=esm-apps%2Fjammy"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"1.12.0-2ubuntu0.1~esm3"}]}],"versions":["1.11.0-1","1.12.0-2build1","1.12.0-2ubuntu0.1~esm1","1.12.0-2ubuntu0.1~esm2"],"ecosystem_specific":{"binaries":[{"binary_name":"heif-gdk-pixbuf","binary_version":"1.12.0-2ubuntu0.1~esm3"},{"binary_version":"1.12.0-2ubuntu0.1~esm3","binary_name":"heif-thumbnailer"},{"binary_name":"libheif-examples","binary_version":"1.12.0-2ubuntu0.1~esm3"},{"binary_version":"1.12.0-2ubuntu0.1~esm3","binary_name":"libheif1"}],"availability":"Available with Ubuntu Pro: https://ubuntu.com/pro"},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-47247.json"}},{"package":{"name":"libheif","ecosystem":"Ubuntu:24.04:LTS","purl":"pkg:deb/ubuntu/libheif?arch=source&distro=noble"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"1.17.6-1ubuntu4.4"}]}],"versions":["1.16.2-2ubuntu1","1.17.1-1ubuntu2","1.17.1-1ubuntu3","1.17.4-1ubuntu1","1.17.6-1ubuntu1","1.17.6-1ubuntu2","1.17.6-1ubuntu3","1.17.6-1ubuntu4","1.17.6-1ubuntu4.1","1.17.6-1ubuntu4.2","1.17.6-1ubuntu4.3"],"ecosystem_specific":{"availability":"No subscription required","binaries":[{"binary_version":"1.17.6-1ubuntu4.4","binary_name":"heif-gdk-pixbuf"},{"binary_name":"heif-thumbnailer","binary_version":"1.17.6-1ubuntu4.4"},{"binary_name":"libheif-examples","binary_version":"1.17.6-1ubuntu4.4"},{"binary_name":"libheif-plugin-aomdec","binary_version":"1.17.6-1ubuntu4.4"},{"binary_name":"libheif-plugin-aomenc","binary_version":"1.17.6-1ubuntu4.4"},{"binary_version":"1.17.6-1ubuntu4.4","binary_name":"libheif-plugin-dav1d"},{"binary_name":"libheif-plugin-ffmpegdec","binary_version":"1.17.6-1ubuntu4.4"},{"binary_name":"libheif-plugin-j2kdec","binary_version":"1.17.6-1ubuntu4.4"},{"binary_name":"libheif-plugin-j2kenc","binary_version":"1.17.6-1ubuntu4.4"},{"binary_version":"1.17.6-1ubuntu4.4","binary_name":"libheif-plugin-jpegdec"},{"binary_version":"1.17.6-1ubuntu4.4","binary_name":"libheif-plugin-jpegenc"},{"binary_name":"libheif-plugin-libde265","binary_version":"1.17.6-1ubuntu4.4"},{"binary_version":"1.17.6-1ubuntu4.4","binary_name":"libheif-plugin-rav1e"},{"binary_version":"1.17.6-1ubuntu4.4","binary_name":"libheif-plugin-svtenc"},{"binary_version":"1.17.6-1ubuntu4.4","binary_name":"libheif-plugin-x265"},{"binary_name":"libheif1","binary_version":"1.17.6-1ubuntu4.4"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-47247.json"}},{"package":{"name":"libheif","ecosystem":"Ubuntu:25.10","purl":"pkg:deb/ubuntu/libheif?arch=source&distro=questing"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"1.20.2-1ubuntu0.4"}]}],"versions":["1.19.7-1","1.19.8-1","1.20.2-1","1.20.2-1ubuntu0.1","1.20.2-1ubuntu0.3"],"ecosystem_specific":{"binaries":[{"binary_name":"heif-gdk-pixbuf","binary_version":"1.20.2-1ubuntu0.4"},{"binary_name":"heif-thumbnailer","binary_version":"1.20.2-1ubuntu0.4"},{"binary_name":"heif-view","binary_version":"1.20.2-1ubuntu0.4"},{"binary_name":"libheif-examples","binary_version":"1.20.2-1ubuntu0.4"},{"binary_name":"libheif-plugin-aomdec","binary_version":"1.20.2-1ubuntu0.4"},{"binary_name":"libheif-plugin-aomenc","binary_version":"1.20.2-1ubuntu0.4"},{"binary_name":"libheif-plugin-dav1d","binary_version":"1.20.2-1ubuntu0.4"},{"binary_version":"1.20.2-1ubuntu0.4","binary_name":"libheif-plugin-ffmpegdec"},{"binary_version":"1.20.2-1ubuntu0.4","binary_name":"libheif-plugin-j2kdec"},{"binary_name":"libheif-plugin-j2kenc","binary_version":"1.20.2-1ubuntu0.4"},{"binary_name":"libheif-plugin-jpegdec","binary_version":"1.20.2-1ubuntu0.4"},{"binary_version":"1.20.2-1ubuntu0.4","binary_name":"libheif-plugin-jpegenc"},{"binary_version":"1.20.2-1ubuntu0.4","binary_name":"libheif-plugin-kvazaar"},{"binary_name":"libheif-plugin-libde265","binary_version":"1.20.2-1ubuntu0.4"},{"binary_version":"1.20.2-1ubuntu0.4","binary_name":"libheif-plugin-rav1e"},{"binary_name":"libheif-plugin-svtenc","binary_version":"1.20.2-1ubuntu0.4"},{"binary_version":"1.20.2-1ubuntu0.4","binary_name":"libheif-plugin-x265"},{"binary_version":"1.20.2-1ubuntu0.4","binary_name":"libheif-plugins-all"},{"binary_version":"1.20.2-1ubuntu0.4","binary_name":"libheif1"}],"availability":"No subscription required"},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-47247.json"}},{"package":{"name":"libheif","ecosystem":"Ubuntu:26.04:LTS","purl":"pkg:deb/ubuntu/libheif?arch=source&distro=resolute"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"1.21.2-3ubuntu0.1"}]}],"versions":["1.20.2-1","1.20.2-2","1.20.2-2build1","1.20.2-2build2","1.20.2-2ubuntu1","1.21.2-1","1.21.2-3"],"ecosystem_specific":{"binaries":[{"binary_name":"heif-gdk-pixbuf","binary_version":"1.21.2-3ubuntu0.1"},{"binary_name":"heif-thumbnailer","binary_version":"1.21.2-3ubuntu0.1"},{"binary_name":"heif-view","binary_version":"1.21.2-3ubuntu0.1"},{"binary_name":"libheif-examples","binary_version":"1.21.2-3ubuntu0.1"},{"binary_name":"libheif-plugin-aomdec","binary_version":"1.21.2-3ubuntu0.1"},{"binary_version":"1.21.2-3ubuntu0.1","binary_name":"libheif-plugin-aomenc"},{"binary_name":"libheif-plugin-dav1d","binary_version":"1.21.2-3ubuntu0.1"},{"binary_name":"libheif-plugin-ffmpegdec","binary_version":"1.21.2-3ubuntu0.1"},{"binary_version":"1.21.2-3ubuntu0.1","binary_name":"libheif-plugin-j2kdec"},{"binary_name":"libheif-plugin-j2kenc","binary_version":"1.21.2-3ubuntu0.1"},{"binary_name":"libheif-plugin-jpegdec","binary_version":"1.21.2-3ubuntu0.1"},{"binary_name":"libheif-plugin-jpegenc","binary_version":"1.21.2-3ubuntu0.1"},{"binary_name":"libheif-plugin-kvazaar","binary_version":"1.21.2-3ubuntu0.1"},{"binary_name":"libheif-plugin-libde265","binary_version":"1.21.2-3ubuntu0.1"},{"binary_name":"libheif-plugin-rav1e","binary_version":"1.21.2-3ubuntu0.1"},{"binary_version":"1.21.2-3ubuntu0.1","binary_name":"libheif-plugin-svtenc"},{"binary_name":"libheif-plugin-x265","binary_version":"1.21.2-3ubuntu0.1"},{"binary_name":"libheif-plugins-all","binary_version":"1.21.2-3ubuntu0.1"},{"binary_version":"1.21.2-3ubuntu0.1","binary_name":"libheif1"}],"availability":"No subscription required"},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-47247.json"}}],"schema_version":"1.7.5","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N"},{"type":"Ubuntu","score":"medium"}]}