{"answers":{"affected":"","exploited":"There is no known exploitation of CVE-2026-73066 in the wild and no public exploit code.","fix":"Upgrade to a fixed version.","what":"CVE-2026-73066 is a medium-severity vulnerability in tesseract-ocr tesseract, published on 11 Aug 2026. It can only be exploited from the same machine or local network, and only if a user opens a file or follows a link."},"fix_prompt":"Check this codebase for CVE-2026-73066 and fix it if it is affected.\n\nWhat it is: CVE-2026-73066 is a medium-severity vulnerability in tesseract-ocr tesseract, published on 11 Aug 2026. It can only be exploited from the same machine or local network, and only if a user opens a file or follows a link.\nExploitation: There is no known exploitation of CVE-2026-73066 in the wild and no public exploit code.\n\nAffected product: tesseract-ocr tesseract. No package-level version data is available, so check the vendor advisory linked from the reference page.\n\nTask:\n1. Search the dependency manifests and lockfiles (for example package.json, package-lock.json, requirements.txt, poetry.lock, uv.lock, pom.xml, build.gradle, go.mod, Cargo.lock, Gemfile.lock) and any Dockerfiles for the affected packages, including transitive dependencies.\n2. If an affected version is in use, upgrade it to the fixed version for its release line with the project's package manager, so the lockfile is regenerated. Prefer the smallest upgrade that fixes it.\n3. If there is no fix, or the upgrade would break the build, do not guess: explain the risk and the safest workaround instead.\n4. Run the tests and summarise what changed and why.\n5. If nothing in the project is affected, say so and change nothing.\n\nReference: https://insights.sbomify.com/CVE-2026-73066/ (Markdown: https://insights.sbomify.com/CVE-2026-73066/index.md)","id":"CVE-2026-73066","markdown":"https://insights.sbomify.com/CVE-2026-73066/index.md","name":"CVE-2026-73066","record":{"aliases":["ALSA-2026:67831","ALSA-2026:67832","DEBIAN-CVE-2026-73066","ECHO-bf17-e4d0-1453","GHSA-7j76-5rq5-5jg8","RHSA-2026:67830","RHSA-2026:67831","RHSA-2026:67832","RHSA-2026:69111","RHSA-2026:69495","RHSA-2026:71566","RHSA-2026:71567","RHSA-2026:71568","RHSA-2026:72280","RLSA-2026:67830","RLSA-2026:67831","RLSA-2026:67832","UBUNTU-CVE-2026-73066"],"analysis":{"component_type":"library","fix_type":"upgrade","impacts":["code_execution"],"network_reachable":"adjacent_or_local","non_default_config":false,"product_category":"OCR engine library","requires_auth":"none","summary":"An attacker can achieve code execution by providing a crafted .traineddata file that triggers an integer overflow and heap out-of-bounds write in the Tesseract OCR engine.","user_interaction":"required","vuln_class":"integer_overflow"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"GitHub_M","cpe":[],"cvss":{"score":6.8,"severity":"medium","source":"cna","vector":"CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:A/VC:N/VI:H/VA:H/SC:N/SI:N/SA:N","version":"4.0"},"cwes":[{"id":"CWE-787","name":"Out-of-bounds Write"}],"description":"Tesseract is an open source OCR engine. Prior to 5.5.3, a crafted .traineddata LSTM model component loaded through Tesseract's deserializer can cause an unchecked signed integer multiplication in Convolve::DeSerialize in src/lstm/convolve.cpp to wrap the convolution output-channel count, undersizing the forward-pass output buffer while writes use the unwrapped element count and causing a heap out-of-bounds write during OCR recognition. This issue is fixed in version 5.5.3.","ecosystems":["AlmaLinux:8","AlmaLinux:9","Red Hat:enterprise_linux:10.2","Red Hat:enterprise_linux:8::appstream","Red Hat:enterprise_linux:8::crb","Red Hat:enterprise_linux:9::appstream","Red Hat:enterprise_linux:9::crb","Red Hat:enterprise_linux_eus:10.0","Red Hat:rhel_aus:8.6::appstream","Red Hat:rhel_e4s:8.8::appstream","Red Hat:rhel_e4s:9.2::appstream","Red Hat:rhel_e4s:9.4::appstream","Red Hat:rhel_eus:9.6::appstream","Red Hat:rhel_eus:9.6::crb","Red Hat:rhel_eus_long_life:8.6::appstream","Red Hat:rhel_tus:8.8::appstream","Rocky Linux:10","Rocky Linux:8","Rocky Linux:9"],"exploits":{"exploitdb":0,"first_seen":null,"github_poc":0,"max_poc_stars":null,"metasploit":0,"nuclei":0,"refs":[],"tier":"none_known"},"has_fix":true,"headline":"Tesseract: Heap out-of-bounds write in LSTM Convolve layer via crafted .traineddata","id":"CVE-2026-73066","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":null,"product":null,"products":[],"type":"integer_overflow","year":"2026"},"n_packages":59,"n_references":4,"next":{"headline":"Tesseract: Heap OOB read in the DAWG loader","id":"CVE-2026-73067"},"packages":[{"ecosystem":"AlmaLinux:8","fixed":["4.1.1-3.el8_10"],"introduced":["0"],"last_affected":[],"package":"tesseract","purl":"pkg:rpm/almalinux/tesseract","source":"ALSA-2026:67832"},{"ecosystem":"AlmaLinux:8","fixed":["4.1.1-3.el8_10"],"introduced":["0"],"last_affected":[],"package":"tesseract-devel","purl":"pkg:rpm/almalinux/tesseract-devel","source":"ALSA-2026:67832"},{"ecosystem":"AlmaLinux:9","fixed":["4.1.1-8.el9_8"],"introduced":["0"],"last_affected":[],"package":"tesseract","purl":"pkg:rpm/almalinux/tesseract","source":"ALSA-2026:67831"},{"ecosystem":"AlmaLinux:9","fixed":["4.1.1-8.el9_8"],"introduced":["0"],"last_affected":[],"package":"tesseract-devel","purl":"pkg:rpm/almalinux/tesseract-devel","source":"ALSA-2026:67831"},{"ecosystem":"Red Hat:enterprise_linux:10.2","fixed":["0:5.3.4-7.el10_2"],"introduced":["0"],"last_affected":[],"package":"tesseract","purl":"pkg:rpm/redhat/tesseract","source":"RHSA-2026:67830"},{"ecosystem":"Red Hat:enterprise_linux:10.2","fixed":["0:5.3.4-7.el10_2"],"introduced":["0"],"last_affected":[],"package":"tesseract-debuginfo","purl":"pkg:rpm/redhat/tesseract-debuginfo","source":"RHSA-2026:67830"},{"ecosystem":"Red Hat:enterprise_linux:10.2","fixed":["0:5.3.4-7.el10_2"],"introduced":["0"],"last_affected":[],"package":"tesseract-debugsource","purl":"pkg:rpm/redhat/tesseract-debugsource","source":"RHSA-2026:67830"},{"ecosystem":"Red Hat:enterprise_linux:10.2","fixed":["0:5.3.4-7.el10_2"],"introduced":["0"],"last_affected":[],"package":"tesseract-devel","purl":"pkg:rpm/redhat/tesseract-devel","source":"RHSA-2026:67830"},{"ecosystem":"Red Hat:enterprise_linux:10.2","fixed":["0:5.3.4-7.el10_2"],"introduced":["0"],"last_affected":[],"package":"tesseract-tools-debuginfo","purl":"pkg:rpm/redhat/tesseract-tools-debuginfo","source":"RHSA-2026:67830"},{"ecosystem":"Red Hat:enterprise_linux:8::appstream","fixed":["0:4.1.1-3.el8_10"],"introduced":["0"],"last_affected":[],"package":"tesseract","purl":"pkg:rpm/redhat/tesseract","source":"RHSA-2026:67832"},{"ecosystem":"Red Hat:enterprise_linux:8::appstream","fixed":["0:4.1.1-3.el8_10"],"introduced":["0"],"last_affected":[],"package":"tesseract-debuginfo","purl":"pkg:rpm/redhat/tesseract-debuginfo","source":"RHSA-2026:67832"},{"ecosystem":"Red Hat:enterprise_linux:8::appstream","fixed":["0:4.1.1-3.el8_10"],"introduced":["0"],"last_affected":[],"package":"tesseract-debugsource","purl":"pkg:rpm/redhat/tesseract-debugsource","source":"RHSA-2026:67832"},{"ecosystem":"Red Hat:enterprise_linux:8::crb","fixed":["0:4.1.1-3.el8_10"],"introduced":["0"],"last_affected":[],"package":"tesseract-debuginfo","purl":"pkg:rpm/redhat/tesseract-debuginfo","source":"RHSA-2026:67832"},{"ecosystem":"Red Hat:enterprise_linux:8::crb","fixed":["0:4.1.1-3.el8_10"],"introduced":["0"],"last_affected":[],"package":"tesseract-debugsource","purl":"pkg:rpm/redhat/tesseract-debugsource","source":"RHSA-2026:67832"},{"ecosystem":"Red Hat:enterprise_linux:8::crb","fixed":["0:4.1.1-3.el8_10"],"introduced":["0"],"last_affected":[],"package":"tesseract-devel","purl":"pkg:rpm/redhat/tesseract-devel","source":"RHSA-2026:67832"},{"ecosystem":"Red Hat:enterprise_linux:9::appstream","fixed":["0:4.1.1-8.el9_8"],"introduced":["0"],"last_affected":[],"package":"tesseract","purl":"pkg:rpm/redhat/tesseract","source":"RHSA-2026:67831"},{"ecosystem":"Red Hat:enterprise_linux:9::appstream","fixed":["0:4.1.1-8.el9_8"],"introduced":["0"],"last_affected":[],"package":"tesseract-debuginfo","purl":"pkg:rpm/redhat/tesseract-debuginfo","source":"RHSA-2026:67831"},{"ecosystem":"Red Hat:enterprise_linux:9::appstream","fixed":["0:4.1.1-8.el9_8"],"introduced":["0"],"last_affected":[],"package":"tesseract-debugsource","purl":"pkg:rpm/redhat/tesseract-debugsource","source":"RHSA-2026:67831"},{"ecosystem":"Red Hat:enterprise_linux:9::appstream","fixed":["0:4.1.1-8.el9_8"],"introduced":["0"],"last_affected":[],"package":"tesseract-tools-debuginfo","purl":"pkg:rpm/redhat/tesseract-tools-debuginfo","source":"RHSA-2026:67831"},{"ecosystem":"Red Hat:enterprise_linux:9::crb","fixed":["0:4.1.1-8.el9_8"],"introduced":["0"],"last_affected":[],"package":"tesseract-debuginfo","purl":"pkg:rpm/redhat/tesseract-debuginfo","source":"RHSA-2026:67831"},{"ecosystem":"Red Hat:enterprise_linux:9::crb","fixed":["0:4.1.1-8.el9_8"],"introduced":["0"],"last_affected":[],"package":"tesseract-debugsource","purl":"pkg:rpm/redhat/tesseract-debugsource","source":"RHSA-2026:67831"},{"ecosystem":"Red Hat:enterprise_linux:9::crb","fixed":["0:4.1.1-8.el9_8"],"introduced":["0"],"last_affected":[],"package":"tesseract-devel","purl":"pkg:rpm/redhat/tesseract-devel","source":"RHSA-2026:67831"},{"ecosystem":"Red Hat:enterprise_linux:9::crb","fixed":["0:4.1.1-8.el9_8"],"introduced":["0"],"last_affected":[],"package":"tesseract-tools-debuginfo","purl":"pkg:rpm/redhat/tesseract-tools-debuginfo","source":"RHSA-2026:67831"},{"ecosystem":"Red Hat:enterprise_linux_eus:10.0","fixed":["0:5.3.4-6.el10_0.1"],"introduced":["0"],"last_affected":[],"package":"tesseract","purl":"pkg:rpm/redhat/tesseract","source":"RHSA-2026:71566"},{"ecosystem":"Red Hat:enterprise_linux_eus:10.0","fixed":["0:5.3.4-6.el10_0.1"],"introduced":["0"],"last_affected":[],"package":"tesseract-debuginfo","purl":"pkg:rpm/redhat/tesseract-debuginfo","source":"RHSA-2026:71566"},{"ecosystem":"Red Hat:enterprise_linux_eus:10.0","fixed":["0:5.3.4-6.el10_0.1"],"introduced":["0"],"last_affected":[],"package":"tesseract-debugsource","purl":"pkg:rpm/redhat/tesseract-debugsource","source":"RHSA-2026:71566"},{"ecosystem":"Red Hat:enterprise_linux_eus:10.0","fixed":["0:5.3.4-6.el10_0.1"],"introduced":["0"],"last_affected":[],"package":"tesseract-devel","purl":"pkg:rpm/redhat/tesseract-devel","source":"RHSA-2026:71566"},{"ecosystem":"Red Hat:enterprise_linux_eus:10.0","fixed":["0:5.3.4-6.el10_0.1"],"introduced":["0"],"last_affected":[],"package":"tesseract-tools-debuginfo","purl":"pkg:rpm/redhat/tesseract-tools-debuginfo","source":"RHSA-2026:71566"},{"ecosystem":"Red Hat:rhel_aus:8.6::appstream","fixed":["0:4.1.1-2.el8_6.1"],"introduced":["0"],"last_affected":[],"package":"tesseract","purl":"pkg:rpm/redhat/tesseract","source":"RHSA-2026:69495"},{"ecosystem":"Red Hat:rhel_aus:8.6::appstream","fixed":["0:4.1.1-2.el8_6.1"],"introduced":["0"],"last_affected":[],"package":"tesseract-debuginfo","purl":"pkg:rpm/redhat/tesseract-debuginfo","source":"RHSA-2026:69495"},{"ecosystem":"Red Hat:rhel_aus:8.6::appstream","fixed":["0:4.1.1-2.el8_6.1"],"introduced":["0"],"last_affected":[],"package":"tesseract-debugsource","purl":"pkg:rpm/redhat/tesseract-debugsource","source":"RHSA-2026:69495"},{"ecosystem":"Red Hat:rhel_e4s:8.8::appstream","fixed":["0:4.1.1-2.el8_8.1"],"introduced":["0"],"last_affected":[],"package":"tesseract","purl":"pkg:rpm/redhat/tesseract","source":"RHSA-2026:69111"},{"ecosystem":"Red Hat:rhel_e4s:8.8::appstream","fixed":["0:4.1.1-2.el8_8.1"],"introduced":["0"],"last_affected":[],"package":"tesseract-debuginfo","purl":"pkg:rpm/redhat/tesseract-debuginfo","source":"RHSA-2026:69111"},{"ecosystem":"Red Hat:rhel_e4s:8.8::appstream","fixed":["0:4.1.1-2.el8_8.1"],"introduced":["0"],"last_affected":[],"package":"tesseract-debugsource","purl":"pkg:rpm/redhat/tesseract-debugsource","source":"RHSA-2026:69111"},{"ecosystem":"Red Hat:rhel_e4s:9.2::appstream","fixed":["0:4.1.1-7.el9_2.1"],"introduced":["0"],"last_affected":[],"package":"tesseract","purl":"pkg:rpm/redhat/tesseract","source":"RHSA-2026:72280"},{"ecosystem":"Red Hat:rhel_e4s:9.2::appstream","fixed":["0:4.1.1-7.el9_2.1"],"introduced":["0"],"last_affected":[],"package":"tesseract-debuginfo","purl":"pkg:rpm/redhat/tesseract-debuginfo","source":"RHSA-2026:72280"},{"ecosystem":"Red Hat:rhel_e4s:9.2::appstream","fixed":["0:4.1.1-7.el9_2.1"],"introduced":["0"],"last_affected":[],"package":"tesseract-debugsource","purl":"pkg:rpm/redhat/tesseract-debugsource","source":"RHSA-2026:72280"},{"ecosystem":"Red Hat:rhel_e4s:9.2::appstream","fixed":["0:4.1.1-7.el9_2.1"],"introduced":["0"],"last_affected":[],"package":"tesseract-tools-debuginfo","purl":"pkg:rpm/redhat/tesseract-tools-debuginfo","source":"RHSA-2026:72280"},{"ecosystem":"Red Hat:rhel_e4s:9.4::appstream","fixed":["0:4.1.1-7.el9_4.1"],"introduced":["0"],"last_affected":[],"package":"tesseract","purl":"pkg:rpm/redhat/tesseract","source":"RHSA-2026:71568"},{"ecosystem":"Red Hat:rhel_e4s:9.4::appstream","fixed":["0:4.1.1-7.el9_4.1"],"introduced":["0"],"last_affected":[],"package":"tesseract-debuginfo","purl":"pkg:rpm/redhat/tesseract-debuginfo","source":"RHSA-2026:71568"}],"prev":{"headline":"In Mbed TLS 3.2.0 though 3.6.6 and 4.0.0 through 4.1.0, an attacker who can cause an entropy source to fail can remove or inject bytes into","id":"CVE-2026-73064"},"products":["tesseract"],"published":"2026-08-11","related":[],"sources":[{"class":"attribution","licence":"MIT","name":"AlmaLinux","prefix":"ALSA"},{"class":"attribution","licence":"CVE Terms of Use (MITRE)","name":"CVE List","prefix":"CVE"},{"class":"attribution","licence":"CC BY 4.0","name":"Red Hat","prefix":"RHSA"},{"class":"attribution","licence":"CWE Terms of Use","name":"CWE (MITRE)"},{"class":"attribution","licence":"FIRST CVSS licence","name":"CVSS (FIRST)"}],"ssvc":{"automatable":"no","exploitation":"none","technical_impact":"partial"},"state":"PUBLISHED","updated":"2026-08-11","vendors":["tesseract-ocr"]},"summary":"An attacker can achieve code execution by providing a crafted .traineddata file that triggers an integer overflow and heap out-of-bounds write in the Tesseract OCR engine.","url":"https://insights.sbomify.com/CVE-2026-73066/"}