{"id":"USN-8399-1","summary":"pillow vulnerabilities","details":"It was discovered that Pillow incorrectly handled large glyph advance\nvalues in fonts. An attacker could possibly use this issue to cause Pillow\nto crash, resulting in a denial of service. (CVE-2026-42308)\n\nIt was discovered that Pillow incorrectly handled nested coordinate lists\nin certain APIs. An attacker could possibly use this issue to cause Pillow\nto crash, resulting in a denial of service. This issue only affected Ubuntu\n25.10 and Ubuntu 26.04 LTS. (CVE-2026-42309)\n\nIt was discovered that Pillow incorrectly handled certain malformed PDF\nfiles. An attacker could possibly use this issue to cause Pillow to use\nexcessive resources, leading to a denial of service. (CVE-2026-42310)\n\nIt was discovered that Pillow incorrectly handled certain malformed PSD\nfiles. An attacker could possibly use this issue to cause Pillow to crash,\nresulting in a denial of service, or to execute arbitrary code. This issue\nonly affected Ubuntu 25.10 and Ubuntu 26.04 LTS. (CVE-2026-42311)","modified":"2026-06-08T19:04:15.750236243Z","published":"2026-06-08T12:43:16Z","related":["UBUNTU-CVE-2026-42308","UBUNTU-CVE-2026-42309","UBUNTU-CVE-2026-42310","UBUNTU-CVE-2026-42311"],"upstream":["CVE-2026-42308","CVE-2026-42309","CVE-2026-42310","CVE-2026-42311","UBUNTU-CVE-2026-42308","UBUNTU-CVE-2026-42309","UBUNTU-CVE-2026-42310","UBUNTU-CVE-2026-42311"],"references":[{"type":"ADVISORY","url":"https://ubuntu.com/security/notices/USN-8399-1"},{"type":"REPORT","url":"https://ubuntu.com/security/CVE-2026-42308"},{"type":"REPORT","url":"https://ubuntu.com/security/CVE-2026-42309"},{"type":"REPORT","url":"https://ubuntu.com/security/CVE-2026-42310"},{"type":"REPORT","url":"https://ubuntu.com/security/CVE-2026-42311"}],"affected":[{"package":{"name":"pillow","ecosystem":"Ubuntu:22.04:LTS","purl":"pkg:deb/ubuntu/pillow?arch=source&distro=jammy"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"9.0.1-1ubuntu0.4"}]}],"versions":["8.1.2+dfsg-0.3","9.0.0-1","9.0.1-1","9.0.1-1build1","9.0.1-1ubuntu0.1","9.0.1-1ubuntu0.2","9.0.1-1ubuntu0.3"],"ecosystem_specific":{"availability":"No subscription required","binaries":[{"binary_name":"python3-pil","binary_version":"9.0.1-1ubuntu0.4"},{"binary_name":"python3-pil.imagetk","binary_version":"9.0.1-1ubuntu0.4"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/usn/USN-8399-1.json","cves_map":{"cves":[{"severity":[{"type":"CVSS_V4","score":"CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N"},{"score":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H","type":"CVSS_V3"},{"score":"medium","type":"Ubuntu"}],"id":"CVE-2026-42308"},{"severity":[{"score":"CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N","type":"CVSS_V4"},{"score":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H","type":"CVSS_V3"},{"score":"medium","type":"Ubuntu"}],"id":"CVE-2026-42310"}],"ecosystem":"Ubuntu:22.04:LTS"}}},{"package":{"name":"pillow","ecosystem":"Ubuntu:24.04:LTS","purl":"pkg:deb/ubuntu/pillow?arch=source&distro=noble"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"10.2.0-1ubuntu1.2"}]}],"versions":["10.0.0-1","10.1.0-1","10.2.0-1","10.2.0-1build1","10.2.0-1ubuntu1"],"ecosystem_specific":{"availability":"No subscription required","binaries":[{"binary_name":"python3-pil","binary_version":"10.2.0-1ubuntu1.2"},{"binary_name":"python3-pil.imagetk","binary_version":"10.2.0-1ubuntu1.2"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/usn/USN-8399-1.json","cves_map":{"cves":[{"severity":[{"type":"CVSS_V4","score":"CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N"},{"score":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H","type":"CVSS_V3"},{"score":"medium","type":"Ubuntu"}],"id":"CVE-2026-42308"},{"severity":[{"score":"CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N","type":"CVSS_V4"},{"score":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H","type":"CVSS_V3"},{"score":"medium","type":"Ubuntu"}],"id":"CVE-2026-42310"}],"ecosystem":"Ubuntu:24.04:LTS"}}},{"package":{"name":"pillow","ecosystem":"Ubuntu:25.10","purl":"pkg:deb/ubuntu/pillow?arch=source&distro=questing"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"11.3.0-1ubuntu1.3"}]}],"versions":["11.1.0-5build1","11.3.0-1ubuntu1","11.3.0-1ubuntu1.1","11.3.0-1ubuntu1.2"],"ecosystem_specific":{"availability":"No subscription required","binaries":[{"binary_name":"python3-pil","binary_version":"11.3.0-1ubuntu1.3"},{"binary_name":"python3-pil.imagetk","binary_version":"11.3.0-1ubuntu1.3"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/usn/USN-8399-1.json","cves_map":{"cves":[{"severity":[{"type":"CVSS_V4","score":"CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N"},{"type":"CVSS_V3","score":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H"},{"type":"Ubuntu","score":"medium"}],"id":"CVE-2026-42308"},{"severity":[{"score":"CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N","type":"CVSS_V4"},{"type":"CVSS_V3","score":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H"},{"score":"medium","type":"Ubuntu"}],"id":"CVE-2026-42309"},{"severity":[{"type":"CVSS_V4","score":"CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N"},{"score":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H","type":"CVSS_V3"},{"score":"medium","type":"Ubuntu"}],"id":"CVE-2026-42310"},{"severity":[{"type":"CVSS_V4","score":"CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N"},{"type":"CVSS_V3","score":"CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H"},{"score":"medium","type":"Ubuntu"}],"id":"CVE-2026-42311"}],"ecosystem":"Ubuntu:25.10"}}},{"package":{"name":"pillow","ecosystem":"Ubuntu:26.04:LTS","purl":"pkg:deb/ubuntu/pillow?arch=source&distro=resolute"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"12.1.1-2ubuntu1.2"}]}],"versions":["11.3.0-1ubuntu1","11.3.0-1ubuntu2","12.0.0-1ubuntu1","12.1.1-1ubuntu1","12.1.1-2ubuntu1","12.1.1-2ubuntu1.1"],"ecosystem_specific":{"availability":"No 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required","binaries":[{"binary_name":"python3-pil","binary_version":"12.1.1-2ubuntu1.2"},{"binary_name":"python3-pil.imagetk","binary_version":"12.1.1-2ubuntu1.2"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/usn/USN-8399-1.json","cves_map":{"cves":[{"severity":[{"type":"CVSS_V4","score":"CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N"},{"score":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H","type":"CVSS_V3"},{"score":"medium","type":"Ubuntu"}],"id":"CVE-2026-42308"},{"severity":[{"score":"CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N","type":"CVSS_V4"},{"score":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H","type":"CVSS_V3"},{"type":"Ubuntu","score":"medium"}],"id":"CVE-2026-42309"},{"severity":[{"score":"CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N","type":"CVSS_V4"},{"score":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H","type":"CVSS_V3"},{"type":"Ubuntu","score":"medium"}],"id":"CVE-2026-42310"},{"severity":[{"type":"CVSS_V4","score":"CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N"},{"score":"CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H","type":"CVSS_V3"},{"score":"medium","type":"Ubuntu"}],"id":"CVE-2026-42311"}],"ecosystem":"Ubuntu:26.04:LTS"}}}],"schema_version":"1.7.5"}