{"id":"CVE-2026-34545","aliases":["BELL-CVE-2026-34545","DEBIAN-CVE-2026-34545","EUVD-2026-18062","GHSA-ghfj-fx47-wg97","JLSEC-2026-147","ROOT-OS-DEBIAN-11-CVE-2026-34545","ROOT-OS-DEBIAN-12-CVE-2026-34545","ROOT-OS-DEBIAN-13-CVE-2026-34545","UBUNTU-CVE-2026-34545","openSUSE-SU-2026:10505-1"],"status":"published","title":"OpenEXR: integer overflow lead to OOB in HTJ2K decoder","description":"OpenEXR provides the specification and reference implementation of the EXR file format, an image storage format for the motion picture industry. From version 3.4.0 to before version 3.4.7, an attacker providing a crafted .exr file with HTJ2K compression and a channel width of 32768 can write controlled data beyond the output heap buffer in any application that decodes EXR images. The write primitive is 2 bytes per overflow iteration or 4 bytes (by another path), repeating for each additional pixel past the overflow point. In this context, a heap write overflow can lead to remote code execution on systems. This issue has been patched in version 3.4.7.","severity":{"version":"4.0","score":8.4,"vector":"CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:A/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N","level":"high","assessor":"cna","from":"cve"},"epss":{"day":"2026-11-09","score":0.00635,"percentile":0.50746,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":true},"cwes":["CWE-122","CWE-1284","CWE-190"],"published":"2026-04-01T20:51:45Z","modified":"2026-11-07T13:00:08Z","fixes":[{"ecosystem":"Alpaquita:stream","package":"openexr","fixed_in":["3.4.8-r0"],"sources":["osv"]},{"ecosystem":"Debian:14","package":"openexr","fixed_in":["3.4.14-0.1"],"sources":["osv"]},{"ecosystem":"Julia","package":"OpenEXR_jll","fixed_in":["3.4.8+0"],"sources":["osv"]},{"ecosystem":"Root:Debian:11","package":"openexr","fixed_in":["2.5.4-2+deb11u1.root.io.14","2.5.4-2+deb11u1.aikido.17","2.5.4-2+deb11u1.aikido.16","2.5.4-2+deb11u1.root.io.15","2.5.4-2+deb11u1.aikido.18"],"sources":["osv"]},{"ecosystem":"Root:Debian:11","package":"rootio-openexr","fixed_in":["2.5.4-2+deb11u1.root.io.14","2.5.4-2+deb11u1.aikido.17","2.5.4-2+deb11u1.aikido.16","2.5.4-2+deb11u1.root.io.15","2.5.4-2+deb11u1.aikido.18"],"sources":["osv"]},{"ecosystem":"Root:Debian:12","package":"openexr","fixed_in":["3.1.5-5.root.io.21","3.1.5-5.root.io.22","3.1.5-5.root.io.23","3.1.5-5.root.io.18","3.1.5-5.root.io.19","3.1.5-5.root.io.20","3.1.5-5.aikido.24","3.1.5-5.aikido.25"],"sources":["osv"]},{"ecosystem":"Root:Debian:12","package":"rootio-openexr","fixed_in":["3.1.5-5.root.io.21","3.1.5-5.root.io.22","3.1.5-5.root.io.23","3.1.5-5.root.io.18","3.1.5-5.root.io.19","3.1.5-5.root.io.20","3.1.5-5.aikido.24","3.1.5-5.aikido.25"],"sources":["osv"]},{"ecosystem":"Root:Debian:13","package":"openexr","fixed_in":["3.1.13-2.aikido.14","3.1.13-2.root.io.11","3.1.13-2.root.io.13","3.1.13-2.root.io.12","3.1.13-2.aikido.15"],"sources":["osv"]},{"ecosystem":"Root:Debian:13","package":"rootio-openexr","fixed_in":["3.1.13-2.aikido.14","3.1.13-2.root.io.11","3.1.13-2.root.io.13","3.1.13-2.root.io.12","3.1.13-2.aikido.15"],"sources":["osv"]}],"affected":[{"source":"osv","ecosystem":"Alpaquita:stream","package":"openexr","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"3.4.4-r0"},{"fixed":"3.4.8-r0"}]}]},{"source":"osv","ecosystem":"Debian:12","package":"openexr","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["3.1.13-1","3.1.13-2","3.1.5-5","3.1.5-5.1","3.1.5-5.1+hurd.1","3.4.14-0.1","3.4.15+ds-1","3.4.16+ds-1","3.4.6+ds-1","3.4.6+ds-2","3.4.6+ds-3","3.4.6+ds-4","3.5.2+ds-1"]},{"source":"osv","ecosystem":"Debian:14","package":"openexr","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"3.4.14-0.1"}]}],"versions":["3.1.13-2","3.4.6+ds-1","3.4.6+ds-2","3.4.6+ds-3","3.4.6+ds-4"]},{"source":"osv","ecosystem":"Julia","package":"OpenEXR_jll","ranges":[{"type":"SEMVER","events":[{"introduced":"3.4.4+0"},{"fixed":"3.4.8+0"}]}]},{"source":"osv","ecosystem":"Root:Debian:11","package":"openexr","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"2.5.4-2+deb11u1.root.io.14"},{"fixed":"2.5.4-2+deb11u1.aikido.17"},{"fixed":"2.5.4-2+deb11u1.aikido.16"},{"fixed":"2.5.4-2+deb11u1.root.io.15"},{"fixed":"2.5.4-2+deb11u1.aikido.18"}]}]},{"source":"osv","ecosystem":"Root:Debian:11","package":"rootio-openexr","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"2.5.4-2+deb11u1.root.io.14"},{"fixed":"2.5.4-2+deb11u1.aikido.17"},{"fixed":"2.5.4-2+deb11u1.aikido.16"},{"fixed":"2.5.4-2+deb11u1.root.io.15"},{"fixed":"2.5.4-2+deb11u1.aikido.18"}]}]},{"source":"osv","ecosystem":"Root:Debian:12","package":"openexr","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"3.1.5-5.root.io.21"},{"fixed":"3.1.5-5.root.io.22"},{"fixed":"3.1.5-5.root.io.23"},{"fixed":"3.1.5-5.root.io.18"},{"fixed":"3.1.5-5.root.io.19"},{"fixed":"3.1.5-5.root.io.20"},{"fixed":"3.1.5-5.aikido.24"},{"fixed":"3.1.5-5.aikido.25"}]}]},{"source":"osv","ecosystem":"Root:Debian:12","package":"rootio-openexr","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"3.1.5-5.root.io.21"},{"fixed":"3.1.5-5.root.io.22"},{"fixed":"3.1.5-5.root.io.23"},{"fixed":"3.1.5-5.root.io.18"},{"fixed":"3.1.5-5.root.io.19"},{"fixed":"3.1.5-5.root.io.20"},{"fixed":"3.1.5-5.aikido.24"},{"fixed":"3.1.5-5.aikido.25"}]}]},{"source":"osv","ecosystem":"Root:Debian:13","package":"openexr","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"3.1.13-2.aikido.14"},{"fixed":"3.1.13-2.root.io.11"},{"fixed":"3.1.13-2.root.io.13"},{"fixed":"3.1.13-2.root.io.12"},{"fixed":"3.1.13-2.aikido.15"}]}]},{"source":"osv","ecosystem":"Root:Debian:13","package":"rootio-openexr","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"3.1.13-2.aikido.14"},{"fixed":"3.1.13-2.root.io.11"},{"fixed":"3.1.13-2.root.io.13"},{"fixed":"3.1.13-2.root.io.12"},{"fixed":"3.1.13-2.aikido.15"}]}]},{"source":"osv","ecosystem":"Ubuntu:26.10","package":"openexr","ranges":[{"type":"ECOSYSTEM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hat","product":"red hat enterprise linux 10"},{"vendor":"red hat","product":"red hat enterprise linux 6"},{"vendor":"red hat","product":"red hat enterprise linux 7"},{"vendor":"red hat","product":"red hat enterprise linux 8"},{"vendor":"red hat","product":"red hat enterprise linux 9"}],"references":[{"url":"https://github.com/AcademySoftwareFoundation/openexr/security/advisories/GHSA-ghfj-fx47-wg97","tags":["x_refsource_CONFIRM","Exploit","Vendor Advisory","advisory","web","report"]},{"url":"https://github.com/AcademySoftwareFoundation/openexr/commit/3827998f5c041d6a94c6af24bbb363daa669e4b3","tags":["x_refsource_MISC","Patch","fix","web","report"]},{"url":"https://github.com/AcademySoftwareFoundation/openexr/releases/tag/v3.4.7","tags":["x_refsource_MISC","Product","Release Notes","web","report"]},{"url":"https://access.redhat.com/security/cve/CVE-2026-34545","tags":["vdb-entry","x_refsource_REDHAT","advisory","web"]},{"url":"https://bugzilla.redhat.com/show_bug.cgi?id=2454139","tags":["issue-tracking","x_refsource_REDHAT","report","web"]},{"url":"https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-34545.json","tags":["x_sadp-csaf-vex","web"]},{"url":"https://docs.bell-sw.com/security/cves/CVE-2026-34545","tags":["advisory"]},{"url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/34xxx/CVE-2026-34545.json","tags":["advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-34545","tags":["advisory"]},{"url":"https://security-tracker.debian.org/tracker/CVE-2026-34545","tags":["advisory"]},{"url":"https://ubuntu.com/security/CVE-2026-34545","tags":["report"]},{"url":"https://www.cve.org/CVERecord?id=CVE-2026-34545","tags":["report"]},{"url":"","tags":["advisory"]},{"url":"https://www.suse.com/security/cve/CVE-2026-34378","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2026-34379","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2026-34380","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2026-34543","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2026-34544","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2026-34545","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2026-34588","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2026-34589","tags":["web"]}],"sources":{"cve":[{"id":"CVE-2026-34545","title":"OpenEXR: integer overflow lead to OOB in HTJ2K decoder","description":"OpenEXR provides the specification and reference implementation of the EXR file format, an image storage format for the motion picture industry. From version 3.4.0 to before version 3.4.7, an attacker providing a crafted .exr file with HTJ2K compression and a channel width of 32768 can write controlled data beyond the output heap buffer in any application that decodes EXR images. The write primitive is 2 bytes per overflow iteration or 4 bytes (by another path), repeating for each additional pixel past the overflow point. In this context, a heap write overflow can lead to remote code execution on systems. This issue has been patched in version 3.4.7.","status":"published","published":"2026-04-01T20:51:45.884Z","modified":"2026-07-15T01:04:21.602Z","cvss":[{"version":"4.0","score":8.4,"vector":"CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:A/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N","level":"high","assessor":"cna"},{"version":"3.1","score":8.8,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H","level":"high","assessor":"adp"}],"cwes":["CWE-122","CWE-190","CWE-1284"],"updated_at":"2026-11-02T14:20:13.962274Z"}],"euvd":[{"id":"EUVD-2026-18062","description":"OpenEXR provides the specification and reference implementation of the EXR file format, an image storage format for the motion picture industry. From version 3.4.0 to before version 3.4.7, an attacker providing a crafted .exr file with HTJ2K compression and a channel width of 32768 can write controlled data beyond the output heap buffer in any application that decodes EXR images. The write primitive is 2 bytes per overflow iteration or 4 bytes (by another path), repeating for each additional pixel past the overflow point. In this context, a heap write overflow can lead to remote code execution on systems. This issue has been patched in version 3.4.7.","status":"published","published":"2026-04-01T20:51:45Z","modified":"2026-07-15T01:04:21Z","cvss":[{"version":"4.0","score":8.4,"vector":"CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:A/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N","level":"high"}],"updated_at":"2026-11-02T18:19:56.47701Z"}],"nvd":[{"id":"CVE-2026-34545","description":"OpenEXR provides the specification and reference implementation of the EXR file format, an image storage format for the motion picture industry. From version 3.4.0 to before version 3.4.7, an attacker providing a crafted .exr file with HTJ2K compression and a channel width of 32768 can write controlled data beyond the output heap buffer in any application that decodes EXR images. The write primitive is 2 bytes per overflow iteration or 4 bytes (by another path), repeating for each additional pixel past the overflow point. In this context, a heap write overflow can lead to remote code execution on systems. This issue has been patched in version 3.4.7.","status":"published","published":"2026-04-01T21:17:01.64Z","modified":"2026-10-26T22:10:00.163Z","cvss":[{"version":"4.0","score":8.4,"vector":"CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:A/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X","level":"high","assessor":"secondary"},{"version":"3.1","score":7.3,"vector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:R/S:U/C:H/I:H/A:H","level":"high","assessor":"primary"},{"version":"3.1","score":8.8,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H","level":"high","assessor":"secondary"}],"cwes":["CWE-122","CWE-190","CWE-1284"],"updated_at":"2026-11-02T14:12:12.73929Z"}],"osv":[{"id":"BELL-CVE-2026-34545","status":"published","published":"2026-04-03T06:08:32.481305Z","modified":"2026-04-09T07:19:59.378765Z","cvss":[{"version":"3.1","score":7.3,"vector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:R/S:U/C:H/I:H/A:H","level":"high"}],"updated_at":"2026-11-02T15:28:23.572955Z"},{"id":"CVE-2026-34545","title":"OpenEXR: integer overflow lead to OOB in HTJ2K decoder","description":"OpenEXR provides the specification and reference implementation of the EXR file format, an image storage format for the motion picture industry. From version 3.4.0 to before version 3.4.7, an attacker providing a crafted .exr file with HTJ2K compression and a channel width of 32768 can write controlled data beyond the output heap buffer in any application that decodes EXR images. The write primitive is 2 bytes per overflow iteration or 4 bytes (by another path), repeating for each additional pixel past the overflow point. In this context, a heap write overflow can lead to remote code execution on systems. This issue has been patched in version 3.4.7.","status":"published","published":"2026-04-01T20:51:45.884Z","modified":"2026-10-28T11:12:09.260403665Z","cvss":[{"version":"4.0","score":8.4,"vector":"CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:A/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N","level":"high"}],"cwes":["CWE-122","CWE-190"],"updated_at":"2026-11-02T15:45:02.247031Z"},{"id":"DEBIAN-CVE-2026-34545","description":"OpenEXR provides the specification and reference implementation of the EXR file format, an image storage format for the motion picture industry. From version 3.4.0 to before version 3.4.7, an attacker providing a crafted .exr file with HTJ2K compression and a channel width of 32768 can write controlled data beyond the output heap buffer in any application that decodes EXR images. The write primitive is 2 bytes per overflow iteration or 4 bytes (by another path), repeating for each additional pixel past the overflow point. In this context, a heap write overflow can lead to remote code execution on systems. This issue has been patched in version 3.4.7.","status":"published","published":"2026-04-01T21:17:01.64Z","modified":"2026-11-07T13:00:08.599246601Z","cvss":[{"version":"3.1","score":7.3,"vector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:R/S:U/C:H/I:H/A:H","level":"high"}],"updated_at":"2026-11-07T13:16:37.331514Z"},{"id":"JLSEC-2026-147","description":"OpenEXR provides the specification and reference implementation of the EXR file format, an image storage format for the motion picture industry. From version 3.4.0 to before version 3.4.7, an attacker providing a crafted .exr file with HTJ2K compression and a channel width of 32768 can write controlled data beyond the output heap buffer in any application that decodes EXR images. The write primitive is 2 bytes per overflow iteration or 4 bytes (by another path), repeating for each additional pixel past the overflow point. In this context, a heap write overflow can lead to remote code execution on systems. This issue has been patched in version 3.4.7.","status":"published","published":"2026-04-17T15:19:54.657Z","modified":"2026-07-18T00:00:24.250646795Z","cvss":[{"version":"3.1","score":7.3,"vector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:R/S:U/C:H/I:H/A:H","level":"high"},{"version":"4.0","score":8.4,"vector":"CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:A/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X","level":"high"}],"updated_at":"2026-11-02T15:47:18.159338Z"},{"id":"ROOT-OS-DEBIAN-11-CVE-2026-34545","title":"CVE-2026-34545 in openexr - Patched by Root","description":"Root has patched CVE-2026-34545 in the openexr package for Root:Debian:11. Multiple fixed versions available.","status":"published","published":"2026-09-02T12:13:16Z","modified":"2026-09-02T14:00:10.492200516Z","cvss":[{"version":"3.1","score":7.3,"vector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:R/S:U/C:H/I:H/A:H","level":"high"}],"updated_at":"2026-11-02T15:53:29.900552Z"},{"id":"ROOT-OS-DEBIAN-12-CVE-2026-34545","title":"CVE-2026-34545 in openexr - Patched by Root","description":"Root has patched CVE-2026-34545 in the openexr package for Root:Debian:12. Multiple fixed versions available.","status":"published","published":"2026-09-02T11:23:23Z","modified":"2026-09-02T12:30:05.08928536Z","cvss":[{"version":"3.1","score":7.3,"vector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:R/S:U/C:H/I:H/A:H","level":"high"}],"updated_at":"2026-11-02T15:53:32.037361Z"},{"id":"ROOT-OS-DEBIAN-13-CVE-2026-34545","title":"CVE-2026-34545 in openexr - Patched by Root","description":"Root has patched CVE-2026-34545 in the openexr package for Root:Debian:13. Multiple fixed versions available.","status":"published","published":"2026-09-02T12:18:43Z","modified":"2026-09-02T14:00:06.425111377Z","cvss":[{"version":"3.1","score":7.3,"vector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:R/S:U/C:H/I:H/A:H","level":"high"}],"updated_at":"2026-11-02T15:53:33.415244Z"},{"id":"UBUNTU-CVE-2026-34545","description":"OpenEXR provides the specification and reference implementation of the EXR file format, an image storage format for the motion picture industry. From version 3.4.0 to before version 3.4.7, an attacker providing a crafted .exr file with HTJ2K compression and a channel width of 32768 can write controlled data beyond the output heap buffer in any application that decodes EXR images. The write primitive is 2 bytes per overflow iteration or 4 bytes (by another path), repeating for each additional pixel past the overflow point. In this context, a heap write overflow can lead to remote code execution on systems. This issue has been patched in version 3.4.7.","status":"published","published":"2026-04-01T21:17:00Z","modified":"2026-10-17T12:58:11.928427946Z","cvss":[{"version":"4.0","score":8.4,"vector":"CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:A/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N","level":"high"},{"version":"3.1","score":8.8,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H","level":"high"},{"version":"3.1","score":7.3,"vector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:R/S:U/C:H/I:H/A:H","level":"high"}],"updated_at":"2026-11-02T16:56:16.036833Z"},{"id":"openSUSE-SU-2026:10505-1","title":"libIex-3_4-33-3.4.9-1.1 on GA media","description":"These are all security issues fixed in the libIex-3_4-33-3.4.9-1.1 package on the GA media of openSUSE Tumbleweed.","status":"published","published":"2026-04-08T00:00:00Z","modified":"2026-04-09T08:00:37.097659Z","updated_at":"2026-11-02T16:58:38.415593Z"}]}}