{"id":"UBUNTU-CVE-2026-110597","details":"Tinyexr through 3.2.0 contains a heap out-of-bounds read vulnerability in ParseEXRMultipartHeaderFromMemory() that allows attackers to read beyond buffers due to a stale remaining-size value. Attackers can supply a crafted multi-part EXR file whose later part headers bypass ReadAttribute() bounds checks, crashing applications or leaking adjacent heap memory into attribute values.","modified":"2026-10-17T12:58:03.658616781Z","published":"2026-10-15T00:00:00Z","upstream":["CVE-2026-110597"],"references":[{"type":"REPORT","url":"https://ubuntu.com/security/CVE-2026-110597"},{"type":"REPORT","url":"https://www.cve.org/CVERecord?id=CVE-2026-110597"},{"type":"REPORT","url":"https://github.com/syoyo/tinyexr/blob/6f470c9ab24bf3992bc512ce07e8ecb00d9bf105/tinyexr.h#L10551-L10621"},{"type":"REPORT","url":"https://github.com/syoyo/tinyexr/blob/6f470c9ab24bf3992bc512ce07e8ecb00d9bf105/tinyexr.h#L1207-L1266"},{"type":"REPORT","url":"https://hackmd.io/@haind-pwn/tinyexr-multipart-header-stale-size-oob-read"},{"type":"REPORT","url":"https://www.vulncheck.com/advisories/tinyexr-through-3.2.0-heap-out-of-bounds-read-via-parseexrmultipartheaderfrommemory"}],"affected":[{"package":{"name":"tinyexr","ecosystem":"Ubuntu:22.04:LTS","purl":"pkg:deb/ubuntu/tinyexr?arch=source&distro=jammy"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["1.0.0+dfsg-1","1.0.1+dfsg-3"],"ecosystem_specific":{"binaries":[{"binary_version":"1.0.1+dfsg-3","binary_name":"libtinyexr1d"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-110597.json"}},{"package":{"name":"tinyexr","ecosystem":"Ubuntu:24.04:LTS","purl":"pkg:deb/ubuntu/tinyexr?arch=source&distro=noble"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["1.0.7+dfsg-1","1.0.8+dfsg-1"],"ecosystem_specific":{"binaries":[{"binary_name":"libtinyexr1d","binary_version":"1.0.8+dfsg-1"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-110597.json"}},{"package":{"name":"tinyexr","ecosystem":"Ubuntu:26.10","purl":"pkg:deb/ubuntu/tinyexr?arch=source&distro=stonking"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["1.0.12+dfsg-1","1.0.13+dfsg-2"],"ecosystem_specific":{"binaries":[{"binary_name":"libtinyexr1d","binary_version":"1.0.13+dfsg-2"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-110597.json"}},{"package":{"name":"tinyexr","ecosystem":"Ubuntu:26.04:LTS","purl":"pkg:deb/ubuntu/tinyexr?arch=source&distro=resolute"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["1.0.10+dfsg-1","1.0.12+dfsg-1"],"ecosystem_specific":{"binaries":[{"binary_name":"libtinyexr1d","binary_version":"1.0.12+dfsg-1"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-110597.json"}}],"schema_version":"1.9.0","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:H"},{"type":"CVSS_V4","score":"CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:P/VC:L/VI:N/VA:H/SC:N/SI:N/SA:N"},{"type":"Ubuntu","score":"medium"}]}