{"id":"CVE-2026-43909","aliases":["DEBIAN-CVE-2026-43909","EUVD-2026-30415","GHSA-g267-j53j-5258","UBUNTU-CVE-2026-43909","USN-8438-1"],"status":"published","title":"OpenImageIO: Signed integer overflow in SwapRGBABytes loop index leads to out-of-bounds read/write in DPX ABGR decoder","description":"OpenImageIO is a toolset for reading, writing, and manipulating image files of any image file format relevant to VFX / animation. Prior to 3.0.18.0 and 3.1.13.0, a signed 32-bit integer overflow in the loop index expression i * 4 inside SwapRGBABytes() causes the function to compute a large negative pointer offset when processing kABGR DPX images with large dimensions. The immediate crash is an out-of-bounds read (the memcpy at line 45 reads from \u0026input[i * 4] first), but the subsequent write operations at lines 46–49 target the same wrapped offset — making this a combined OOB read+write primitive. This vulnerability is fixed in 3.0.18.0 and 3.1.13.0.","severity":{"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":"cna","from":"cve"},"epss":{"day":"2026-11-11","score":0.00371,"percentile":0.31416,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":true},"cwes":["CWE-125","CWE-190","CWE-787"],"published":"2026-05-14T19:00:20Z","modified":"2026-10-28T02:31:09Z","fixes":[{"ecosystem":"Debian:14","package":"openimageio","fixed_in":["3.1.18.0+dfsg-2"],"sources":["osv"]},{"ecosystem":"Ubuntu:Pro:16.04:LTS","package":"openimageio","fixed_in":["1.6.11~dfsg0-1ubuntu1+esm2"],"sources":["osv"]},{"ecosystem":"Ubuntu:Pro:18.04:LTS","package":"openimageio","fixed_in":["1.7.17~dfsg0-1ubuntu2+esm1"],"sources":["osv"]},{"ecosystem":"Ubuntu:Pro:20.04:LTS","package":"openimageio","fixed_in":["2.1.12.0~dfsg0-1ubuntu0.1~esm1"],"sources":["osv"]},{"ecosystem":"Ubuntu:Pro:24.04:LTS","package":"openimageio","fixed_in":["2.4.17.0+dfsg-1.1ubuntu0.1~esm1"],"sources":["osv"]},{"ecosystem":"Ubuntu:Pro:26.04:LTS","package":"openimageio","fixed_in":["2.5.19.1+dfsg-2ubuntu0.1~esm1"],"sources":["osv"]}],"affected":[{"source":"osv","ecosystem":"Debian:12","package":"openimageio","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["2.4.12.0+dfsg-1","2.4.13.0+dfsg-1","2.4.14.0+dfsg-1","2.4.16.0+dfsg-1","2.4.17.0+dfsg-1","2.4.17.0+dfsg-1.1","2.4.7.1+dfsg-2","2.4.9.0+dfsg-1","2.5.10.1+dfsg-1","2.5.12.0+dfsg-1","2.5.12.0+dfsg-2","2.5.14.0+dfsg-1","2.5.15.0+dfsg-1","2.5.16.0+dfsg-1","2.5.18.0+dfsg-1","2.5.19.1+dfsg-1","2.5.19.1+dfsg-2","2.5.7.0+dfsg-1","3.1.18.0+dfsg-1","3.1.18.0+dfsg-2","3.1.18.1+dfsg-1","3.1.18.1+dfsg-2"]},{"source":"osv","ecosystem":"Debian:13","package":"openimageio","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["2.5.18.0+dfsg-1","2.5.19.1+dfsg-1","2.5.19.1+dfsg-2","3.1.18.0+dfsg-1","3.1.18.0+dfsg-2","3.1.18.1+dfsg-1","3.1.18.1+dfsg-2"]},{"source":"osv","ecosystem":"Debian:14","package":"openimageio","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"3.1.18.0+dfsg-2"}]}],"versions":["2.5.18.0+dfsg-1","2.5.19.1+dfsg-1","2.5.19.1+dfsg-2","3.1.18.0+dfsg-1"]},{"source":"osv","ecosystem":"Ubuntu:Pro:16.04:LTS","package":"openimageio","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"1.6.11~dfsg0-1ubuntu1+esm2"}]}],"versions":["1.5.17~dfsg0-1ubuntu2","1.5.20~dfsg0-1ubuntu2","1.5.23~dfsg0-1ubuntu1","1.6.9~dfsg0-4ubuntu1","1.6.10~dfsg0-1ubuntu1","1.6.10~dfsg0-2ubuntu1","1.6.11~dfsg0-1ubuntu1"]},{"source":"osv","ecosystem":"Ubuntu:Pro:18.04:LTS","package":"openimageio","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"1.7.17~dfsg0-1ubuntu2+esm1"}]}],"versions":["1.6.17~dfsg0-1ubuntu5","1.7.17~dfsg0-1ubuntu2"]},{"source":"osv","ecosystem":"Ubuntu:Pro:20.04:LTS","package":"openimageio","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"2.1.12.0~dfsg0-1ubuntu0.1~esm1"}]}],"versions":["2.0.10~dfsg0-1","2.0.11~dfsg0-1","2.0.12~dfsg0-1","2.0.12~dfsg0-1build1","2.0.12~dfsg0-1build2","2.1.10.1~dfsg0-5ubuntu4","2.1.10.1~dfsg0-5ubuntu5","2.1.12.0~dfsg0-1"]},{"source":"osv","ecosystem":"Ubuntu:22.04:LTS","package":"openimageio","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["2.2.10.1+dfsg-1build1","2.2.18.0+dfsg-1","2.2.18.0+dfsg-1build2","2.2.18.0+dfsg-1ubuntu2"]},{"source":"osv","ecosystem":"Ubuntu:Pro:24.04:LTS","package":"openimageio","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"2.4.17.0+dfsg-1.1ubuntu0.1~esm1"}]}],"versions":["2.4.14.0+dfsg-1","2.4.16.0+dfsg-1","2.4.16.0+dfsg-1build1","2.4.17.0+dfsg-1","2.4.17.0+dfsg-1build1","2.4.17.0+dfsg-1.1build3","2.4.17.0+dfsg-1.1build4"]},{"source":"osv","ecosystem":"Ubuntu:25.10","package":"openimageio","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["2.5.18.0+dfsg-1build1","2.5.18.0+dfsg-1build2"]},{"source":"osv","ecosystem":"Ubuntu:26.10","package":"openimageio","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["2.5.19.1+dfsg-2","2.5.19.1+dfsg-2build1","2.5.19.1+dfsg-2build2"]},{"source":"osv","ecosystem":"Ubuntu:Pro:26.04:LTS","package":"openimageio","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"2.5.19.1+dfsg-2ubuntu0.1~esm1"}]}],"versions":["2.5.18.0+dfsg-1build2","2.5.19.1+dfsg-1build1","2.5.19.1+dfsg-1build3","2.5.19.1+dfsg-1build5","2.5.19.1+dfsg-2"]},{"source":"osv","ecosystem":"Ubuntu:Pro:16.04:LTS","package":"openimageio","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"1.6.11~dfsg0-1ubuntu1+esm2"}]}],"versions":["1.5.17~dfsg0-1ubuntu2","1.5.20~dfsg0-1ubuntu2","1.5.23~dfsg0-1ubuntu1","1.6.9~dfsg0-4ubuntu1","1.6.10~dfsg0-1ubuntu1","1.6.10~dfsg0-2ubuntu1","1.6.11~dfsg0-1ubuntu1"],"bundled":6},{"source":"osv","ecosystem":"Ubuntu:Pro:18.04:LTS","package":"openimageio","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"1.7.17~dfsg0-1ubuntu2+esm1"}]}],"versions":["1.6.17~dfsg0-1ubuntu5","1.7.17~dfsg0-1ubuntu2"],"bundled":6},{"source":"osv","ecosystem":"Ubuntu:Pro:20.04:LTS","package":"openimageio","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"2.1.12.0~dfsg0-1ubuntu0.1~esm1"}]}],"versions":["2.0.10~dfsg0-1","2.0.11~dfsg0-1","2.0.12~dfsg0-1","2.0.12~dfsg0-1build1","2.0.12~dfsg0-1build2","2.1.10.1~dfsg0-5ubuntu4","2.1.10.1~dfsg0-5ubuntu5","2.1.12.0~dfsg0-1"],"bundled":6},{"source":"osv","ecosystem":"Ubuntu:Pro:24.04:LTS","package":"openimageio","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"2.4.17.0+dfsg-1.1ubuntu0.1~esm1"}]}],"versions":["2.4.14.0+dfsg-1","2.4.16.0+dfsg-1","2.4.16.0+dfsg-1build1","2.4.17.0+dfsg-1","2.4.17.0+dfsg-1build1","2.4.17.0+dfsg-1.1build3","2.4.17.0+dfsg-1.1build4"],"bundled":6},{"source":"osv","ecosystem":"Ubuntu:Pro:26.04:LTS","package":"openimageio","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"2.5.19.1+dfsg-2ubuntu0.1~esm1"}]}],"versions":["2.5.18.0+dfsg-1build2","2.5.19.1+dfsg-1build1","2.5.19.1+dfsg-1build3","2.5.19.1+dfsg-1build5","2.5.19.1+dfsg-2"],"bundled":6}],"products":[{"vendor":"academysoftwarefoundation","product":"openimageio"},{"vendor":"openimageio","product":"openimageio"}],"references":[{"url":"https://github.com/AcademySoftwareFoundation/OpenImageIO/security/advisories/GHSA-g267-j53j-5258","tags":["x_refsource_CONFIRM","exploit","Exploit","Vendor Advisory","advisory","report"]},{"url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/43xxx/CVE-2026-43909.json","tags":["advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-43909","tags":["advisory"]},{"url":"https://security-tracker.debian.org/tracker/CVE-2026-43909","tags":["advisory"]},{"url":"https://ubuntu.com/security/CVE-2026-43909","tags":["report"]},{"url":"https://www.cve.org/CVERecord?id=CVE-2026-43909","tags":["report"]},{"url":"https://ubuntu.com/security/notices/USN-8438-1","tags":["advisory"]},{"url":"https://ubuntu.com/security/CVE-2026-43903","tags":["report"]},{"url":"https://ubuntu.com/security/CVE-2026-43904","tags":["report"]},{"url":"https://ubuntu.com/security/CVE-2026-43906","tags":["report"]},{"url":"https://ubuntu.com/security/CVE-2026-43907","tags":["report"]},{"url":"https://ubuntu.com/security/CVE-2026-43908","tags":["report"]}],"sources":{"cve":[{"id":"CVE-2026-43909","title":"OpenImageIO: Signed integer overflow in SwapRGBABytes loop index leads to out-of-bounds read/write in DPX ABGR decoder","description":"OpenImageIO is a toolset for reading, writing, and manipulating image files of any image file format relevant to VFX / animation. Prior to 3.0.18.0 and 3.1.13.0, a signed 32-bit integer overflow in the loop index expression i * 4 inside SwapRGBABytes() causes the function to compute a large negative pointer offset when processing kABGR DPX images with large dimensions. The immediate crash is an out-of-bounds read (the memcpy at line 45 reads from \u0026input[i * 4] first), but the subsequent write operations at lines 46–49 target the same wrapped offset — making this a combined OOB read+write primitive. This vulnerability is fixed in 3.0.18.0 and 3.1.13.0.","status":"published","published":"2026-05-14T19:00:20.014Z","modified":"2026-05-14T19:49:59.966Z","cvss":[{"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":"cna"}],"cwes":["CWE-125","CWE-190","CWE-787"],"updated_at":"2026-11-02T13:37:36.275898Z"}],"euvd":[{"id":"EUVD-2026-30415","description":"OpenImageIO is a toolset for reading, writing, and manipulating image files of any image file format relevant to VFX / animation. Prior to 3.0.18.0 and 3.1.13.0, a signed 32-bit integer overflow in the loop index expression i * 4 inside SwapRGBABytes() causes the function to compute a large negative pointer offset when processing kABGR DPX images with large dimensions. The immediate crash is an out-of-bounds read (the memcpy at line 45 reads from \u0026input[i * 4] first), but the subsequent write operations at lines 46–49 target the same wrapped offset — making this a combined OOB read+write primitive. This vulnerability is fixed in 3.0.18.0 and 3.1.13.0.","status":"published","published":"2026-05-14T19:00:20Z","modified":"2026-05-14T19:49:59Z","cvss":[{"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"}],"updated_at":"2026-11-02T19:04:30.595644Z"}],"nvd":[{"id":"CVE-2026-43909","description":"OpenImageIO is a toolset for reading, writing, and manipulating image files of any image file format relevant to VFX / animation. Prior to 3.0.18.0 and 3.1.13.0, a signed 32-bit integer overflow in the loop index expression i * 4 inside SwapRGBABytes() causes the function to compute a large negative pointer offset when processing kABGR DPX images with large dimensions. The immediate crash is an out-of-bounds read (the memcpy at line 45 reads from \u0026input[i * 4] first), but the subsequent write operations at lines 46–49 target the same wrapped offset — making this a combined OOB read+write primitive. This vulnerability is fixed in 3.0.18.0 and 3.1.13.0.","status":"published","published":"2026-05-14T20:17:07.063Z","modified":"2026-10-26T14:10:00.13Z","cvss":[{"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-125","CWE-190","CWE-787"],"updated_at":"2026-11-02T14:12:19.39893Z"}],"osv":[{"id":"CVE-2026-43909","title":"OpenImageIO: Signed integer overflow in SwapRGBABytes loop index leads to out-of-bounds read/write in DPX ABGR decoder","description":"OpenImageIO is a toolset for reading, writing, and manipulating image files of any image file format relevant to VFX / animation. Prior to 3.0.18.0 and 3.1.13.0, a signed 32-bit integer overflow in the loop index expression i * 4 inside SwapRGBABytes() causes the function to compute a large negative pointer offset when processing kABGR DPX images with large dimensions. The immediate crash is an out-of-bounds read (the memcpy at line 45 reads from \u0026input[i * 4] first), but the subsequent write operations at lines 46–49 target the same wrapped offset — making this a combined OOB read+write primitive. This vulnerability is fixed in 3.0.18.0 and 3.1.13.0.","status":"published","published":"2026-05-14T19:00:20.014Z","modified":"2026-10-28T02:31:09.85879651Z","cvss":[{"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"}],"cwes":["CWE-125","CWE-190","CWE-787"],"updated_at":"2026-11-02T15:45:04.820169Z"},{"id":"DEBIAN-CVE-2026-43909","description":"OpenImageIO is a toolset for reading, writing, and manipulating image files of any image file format relevant to VFX / animation. Prior to 3.0.18.0 and 3.1.13.0, a signed 32-bit integer overflow in the loop index expression i * 4 inside SwapRGBABytes() causes the function to compute a large negative pointer offset when processing kABGR DPX images with large dimensions. The immediate crash is an out-of-bounds read (the memcpy at line 45 reads from \u0026input[i * 4] first), but the subsequent write operations at lines 46–49 target the same wrapped offset — making this a combined OOB read+write primitive. This vulnerability is fixed in 3.0.18.0 and 3.1.13.0.","status":"published","published":"2026-05-14T20:17:07.063Z","modified":"2026-10-27T10:01:25.217083043Z","cvss":[{"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"}],"updated_at":"2026-11-02T15:45:55.669088Z"},{"id":"UBUNTU-CVE-2026-43909","description":"OpenImageIO is a toolset for reading, writing, and manipulating image files of any image file format relevant to VFX / animation. Prior to 3.0.18.0 and 3.1.13.0, a signed 32-bit integer overflow in the loop index expression i * 4 inside SwapRGBABytes() causes the function to compute a large negative pointer offset when processing kABGR DPX images with large dimensions. The immediate crash is an out-of-bounds read (the memcpy at line 45 reads from \u0026input[i * 4] first), but the subsequent write operations at lines 46–49 target the same wrapped offset — making this a combined OOB read+write primitive. This vulnerability is fixed in 3.0.18.0 and 3.1.13.0.","status":"published","published":"2026-05-14T20:17:00Z","modified":"2026-10-17T13:00:07.846680746Z","cvss":[{"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"}],"updated_at":"2026-11-02T16:56:22.075798Z"},{"id":"USN-8438-1","title":"openimageio vulnerabilities","description":"It was discovered that OpenImageIO incorrectly performed bounds\nchecking when processing SGI files. An attacker could possibly\nuse this issue to cause a denial of service or execute arbitrary\ncode. (CVE-2026-43903)\n\nIt was discovered that OpenImageIO incorrectly handled run-length\nencoding when processing Softimage PIC files. An attacker\ncould possibly use this issue to cause a denial of service or\nexecute arbitrary code. (CVE-2026-43904)\n\nIt was discovered that OpenImageIO incorrectly validated subimage\nmetadata when processing HEIF files. An attacker could\npossibly use this issue to cause a denial of service or execute\narbitrary code. This issue only affected Ubuntu 20.04 LTS, Ubuntu\n24.04 LTS and Ubuntu 26.04 LTS. (CVE-2026-43906)\n\nIt was discovered that OpenImageIO contained multiple integer\noverflow vulnerabilities when processing DPX files. An\nattacker could possibly use these issues to cause a denial of\nservice or execute arbitrary code. (CVE-2026-43907, CVE-2026-43908,\nCVE-2026-43909)","status":"published","published":"2026-06-16T21:02:47Z","modified":"2026-06-17T06:33:49.440198777Z","updated_at":"2026-11-02T16:58:25.103481Z"}]}}