{"id":"CVE-2026-119339","aliases":["DEBIAN-CVE-2026-119339","EUVD-2026-114447","GHSA-h9g4-frjx-6cj3","UBUNTU-CVE-2026-119339","openSUSE-SU-2026:12411-1"],"status":"published","title":"Tesseract: Crafted LSTM model (`WeightMatrix` mode byte) triggers `ASSERT_HOST` abort in `WeightMatrix::DeSerializeOld` under `FAST_FLOAT` — Denial of Service","description":"Tesseract is an open source OCR engine. Prior to 5.5.4, WeightMatrix::DeSerialize trusts a mode byte from a traineddata LSTM network and calls WeightMatrix::DeSerializeOld when kDoubleFlag is clear. In default FAST_FLOAT builds, DeSerializeOld invokes ASSERT_HOST instead of returning an error, so loading a crafted model through TessBaseAPI::Init terminates the process and causes denial of service. This issue is fixed in version 5.5.4.","severity":{"version":"3.1","score":5.5,"vector":"CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H","level":"medium","assessor":"cna","from":"cve"},"epss":{"day":"2026-11-11","score":0.00165,"percentile":0.05751,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-20","CWE-617"],"published":"2026-10-30T20:13:37Z","modified":"2026-11-05T04:42:51Z","affected":[{"source":"osv","ecosystem":"Debian:12","package":"tesseract","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["5.3.0-2","5.3.3-1","5.3.4-1","5.3.4-1.1","5.3.4-1.2","5.3.4-1.3","5.3.4-1.4","5.5.0-1","5.5.0-1.1"]},{"source":"osv","ecosystem":"Debian:13","package":"tesseract","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["5.5.0-1","5.5.0-1.1"]},{"source":"osv","ecosystem":"Debian:14","package":"tesseract","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["5.5.0-1","5.5.0-1.1"]},{"source":"osv","ecosystem":"Ubuntu:Pro:14.04:LTS","package":"tesseract","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["3.02.02-1","3.03.02-3","3.03.02-3ubuntu0.1~esm1"]},{"source":"osv","ecosystem":"Ubuntu:Pro:16.04:LTS","package":"tesseract","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["3.04.00-5ubuntu1","3.04.01-2","3.04.01-4","3.04.01-4ubuntu0.1~esm1"]},{"source":"osv","ecosystem":"Ubuntu:Pro:18.04:LTS","package":"tesseract","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["3.04.01-6","3.04.01-6build1","3.04.01-6build2","4.00~git2188-cdc35338-4build1","4.00~git2188-cdc35338-5","4.00~git2207-766b7bd6-3.1","4.00~git2219-40f43111-1.2","4.00~git2288-10f4998a-2","4.00~git2288-10f4998a-2ubuntu0.1~esm1"]},{"source":"osv","ecosystem":"Ubuntu:Pro:20.04:LTS","package":"tesseract","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["4.1.0-1","4.1.0-2","4.1.1-1","4.1.1-2","4.1.1-2build1","4.1.1-2build2","4.1.1-2ubuntu0.1~esm1"]},{"source":"osv","ecosystem":"Ubuntu:Pro:22.04:LTS","package":"tesseract","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["4.1.1-2.1","4.1.1-2.1build1","4.1.1-2.1ubuntu0.1~esm1"]},{"source":"osv","ecosystem":"Ubuntu:Pro:24.04:LTS","package":"tesseract","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["5.3.0-2build1","5.3.3-1","5.3.3-1build1","5.3.4-1","5.3.4-1build3","5.3.4-1build4","5.3.4-1build5","5.3.4-1ubuntu0.1~esm1"]},{"source":"osv","ecosystem":"Ubuntu:26.10","package":"tesseract","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["5.5.0-1build1","5.5.0-1.1"]},{"source":"osv","ecosystem":"Ubuntu:Pro:26.04:LTS","package":"tesseract","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["5.5.0-1","5.5.0-1build1","5.5.0-1ubuntu0.1~esm1"]},{"source":"osv","ecosystem":"openSUSE:Tumbleweed","package":"tesseract-ocr","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"5.5.4-2.1"}]}],"bundled":4}],"products":[{"vendor":"tesseract-ocr","product":"tesseract"}],"references":[{"url":"https://github.com/tesseract-ocr/tesseract/security/advisories/GHSA-h9g4-frjx-6cj3","tags":["x_refsource_CONFIRM","advisory","report"]},{"url":"https://github.com/tesseract-ocr/tesseract/pull/4657","tags":["x_refsource_MISC","fix","report"]},{"url":"https://github.com/tesseract-ocr/tesseract/commit/c053424327352b9d5180aa7540c1f9e67c64f27e","tags":["x_refsource_MISC","fix","report"]},{"url":"https://github.com/tesseract-ocr/tesseract/releases/tag/5.5.4","tags":["x_refsource_MISC","web","report"]},{"url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/119xxx/CVE-2026-119339.json","tags":["advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-119339","tags":["advisory"]},{"url":"https://security-tracker.debian.org/tracker/CVE-2026-119339","tags":["advisory"]},{"url":"https://ubuntu.com/security/CVE-2026-119339","tags":["report"]},{"url":"https://www.cve.org/CVERecord?id=CVE-2026-119339","tags":["report"]},{"url":"","tags":["advisory"]},{"url":"https://www.suse.com/security/cve/CVE-2026-119338","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2026-119339","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2026-119340","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2026-119341","tags":["web"]}],"sources":{"cve":[{"id":"CVE-2026-119339","title":"Tesseract: Crafted LSTM model (`WeightMatrix` mode byte) triggers `ASSERT_HOST` abort in `WeightMatrix::DeSerializeOld` under `FAST_FLOAT` — Denial of Service","description":"Tesseract is an open source OCR engine. Prior to 5.5.4, WeightMatrix::DeSerialize trusts a mode byte from a traineddata LSTM network and calls WeightMatrix::DeSerializeOld when kDoubleFlag is clear. In default FAST_FLOAT builds, DeSerializeOld invokes ASSERT_HOST instead of returning an error, so loading a crafted model through TessBaseAPI::Init terminates the process and causes denial of service. This issue is fixed in version 5.5.4.","status":"published","published":"2026-10-30T20:13:37.931Z","modified":"2026-10-30T22:13:31.619Z","cvss":[{"version":"3.1","score":5.5,"vector":"CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H","level":"medium","assessor":"cna"}],"cwes":["CWE-20","CWE-617"],"updated_at":"2026-11-02T14:20:10.143031Z"}],"euvd":[{"id":"EUVD-2026-114447","description":"Tesseract is an open source OCR engine. Prior to 5.5.4, WeightMatrix::DeSerialize trusts a mode byte from a traineddata LSTM network and calls WeightMatrix::DeSerializeOld when kDoubleFlag is clear. In default FAST_FLOAT builds, DeSerializeOld invokes ASSERT_HOST instead of returning an error, so loading a crafted model through TessBaseAPI::Init terminates the process and causes denial of service. This issue is fixed in version 5.5.4.","status":"published","published":"2026-10-30T20:13:37Z","modified":"2026-10-30T22:13:31Z","cvss":[{"version":"3.1","score":5.5,"vector":"CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H","level":"medium"}],"updated_at":"2026-11-02T16:59:01.632804Z"}],"nvd":[{"id":"CVE-2026-119339","description":"Tesseract is an open source OCR engine. Prior to 5.5.4, WeightMatrix::DeSerialize trusts a mode byte from a traineddata LSTM network and calls WeightMatrix::DeSerializeOld when kDoubleFlag is clear. In default FAST_FLOAT builds, DeSerializeOld invokes ASSERT_HOST instead of returning an error, so loading a crafted model through TessBaseAPI::Init terminates the process and causes denial of service. This issue is fixed in version 5.5.4.","status":"published","published":"2026-10-30T21:16:51.94Z","modified":"2026-11-02T19:14:53.03Z","cvss":[{"version":"3.1","score":5.5,"vector":"CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H","level":"medium","assessor":"secondary"}],"cwes":["CWE-20","CWE-617"],"updated_at":"2026-11-03T00:02:42.364722Z"}],"osv":[{"id":"CVE-2026-119339","title":"Tesseract: Crafted LSTM model (`WeightMatrix` mode byte) triggers `ASSERT_HOST` abort in `WeightMatrix::DeSerializeOld` under `FAST_FLOAT` — Denial of Service","description":"Tesseract is an open source OCR engine. Prior to 5.5.4, WeightMatrix::DeSerialize trusts a mode byte from a traineddata LSTM network and calls WeightMatrix::DeSerializeOld when kDoubleFlag is clear. In default FAST_FLOAT builds, DeSerializeOld invokes ASSERT_HOST instead of returning an error, so loading a crafted model through TessBaseAPI::Init terminates the process and causes denial of service. This issue is fixed in version 5.5.4.","status":"published","published":"2026-10-30T20:13:37.931Z","modified":"2026-11-04T17:27:19.227752333Z","cvss":[{"version":"3.1","score":5.5,"vector":"CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H","level":"medium"}],"cwes":["CWE-20","CWE-617"],"updated_at":"2026-11-04T17:42:28.099384Z"},{"id":"DEBIAN-CVE-2026-119339","description":"Tesseract is an open source OCR engine. Prior to 5.5.4, WeightMatrix::DeSerialize trusts a mode byte from a traineddata LSTM network and calls WeightMatrix::DeSerializeOld when kDoubleFlag is clear. In default FAST_FLOAT builds, DeSerializeOld invokes ASSERT_HOST instead of returning an error, so loading a crafted model through TessBaseAPI::Init terminates the process and causes denial of service. This issue is fixed in version 5.5.4.","status":"published","published":"2026-10-30T21:16:51.94Z","modified":"2026-11-03T09:47:35.831548222Z","cvss":[{"version":"3.1","score":5.5,"vector":"CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H","level":"medium"}],"updated_at":"2026-11-03T10:27:58.933618Z"},{"id":"UBUNTU-CVE-2026-119339","description":"Tesseract is an open source OCR engine. Prior to 5.5.4, WeightMatrix::DeSerialize trusts a mode byte from a traineddata LSTM network and calls WeightMatrix::DeSerializeOld when kDoubleFlag is clear. In default FAST_FLOAT builds, DeSerializeOld invokes ASSERT_HOST instead of returning an error, so loading a crafted model through TessBaseAPI::Init terminates the process and causes denial of service. This issue is fixed in version 5.5.4.","status":"published","published":"2026-10-30T21:16:00Z","modified":"2026-11-05T04:42:51Z","cvss":[{"version":"3.1","score":5.5,"vector":"CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H","level":"medium"}],"updated_at":"2026-11-05T13:33:25.727744Z"},{"id":"openSUSE-SU-2026:12411-1","title":"libtesseract5-5.5.4-2.1 on GA media","description":"These are all security issues fixed in the libtesseract5-5.5.4-2.1 package on the GA media of openSUSE Tumbleweed.","status":"published","published":"2026-11-03T00:00:00Z","modified":"2026-11-04T17:23:22.336521718Z","updated_at":"2026-11-04T17:43:22.558805Z"}]}}