{"id":"CVE-2026-73067","state":"PUBLISHED","title":"Tesseract: Heap OOB read in the DAWG loader","description":"Tesseract is an open source OCR engine. Prior to 5.5.3, a crafted .traineddata model loaded through TessBaseAPI::Init can cause SquishedDawg::read_squished_dawg in src/dict/dawg.cpp to accept an unterminated forward-edge run, after which SquishedDawg::Load calls num_forward_edges(0) and last_edge in src/dict/dawg.h reads beyond edges_, causing a heap out-of-bounds read and process crash before image processing. This issue is fixed in version 5.5.3.","publishedAt":"2026-08-11T14:51:32.304Z","updatedAt":"2026-08-11T15:03:45.105Z","severity":{"score":6.7,"label":"Medium","version":"4.0","vector":"CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:A/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N","source":"GitHub_M"},"assigner":"GitHub_M","products":["tesseract-ocr tesseract"],"affected":[{"vendor":"tesseract-ocr","product":"tesseract","versions":[{"version":"< 5.5.3","status":"affected"}]}],"references":["https://github.com/tesseract-ocr/tesseract/security/advisories/GHSA-x3vq-7rr7-5x3h","https://github.com/tesseract-ocr/tesseract/issues/4580","https://github.com/tesseract-ocr/tesseract/pull/4581","https://github.com/tesseract-ocr/tesseract/commit/55287a94b8044c05ce3fd10f5aca6ebbd238e518","https://github.com/tesseract-ocr/tesseract/commit/82727cc11c34eaf1249af002d69f6bbae70993b9","https://github.com/tesseract-ocr/tesseract/releases/tag/5.5.3"],"weaknesses":["CWE-125"],"ingestedAt":"2026-10-29T20:12:58.252Z","source":{"repository":"CVEProject/cvelistV5","path":"cves/2026/73xxx/CVE-2026-73067.json","commit":"556c9d3a8cd17e218bb8e452ba7cd619a384ff47"},"raw":{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-73067","state":"PUBLISHED","datePublished":"2026-08-11T14:51:32.304Z","dateUpdated":"2026-08-11T15:03:45.105Z","assignerShortName":"GitHub_M","assignerOrgId":"a0819718-46f1-4df5-94e2-005712e83aaa","dateReserved":"2026-08-10T19:37:41.443Z"},"containers":{"cna":{"title":"Tesseract: Heap OOB read in the DAWG loader","descriptions":[{"lang":"en","value":"Tesseract is an open source OCR engine. Prior to 5.5.3, a crafted .traineddata model loaded through TessBaseAPI::Init can cause SquishedDawg::read_squished_dawg in src/dict/dawg.cpp to accept an unterminated forward-edge run, after which SquishedDawg::Load calls num_forward_edges(0) and last_edge in src/dict/dawg.h reads beyond edges_, causing a heap out-of-bounds read and process crash before image processing. This issue is fixed in version 5.5.3."}],"affected":[{"vendor":"tesseract-ocr","product":"tesseract","versions":[{"version":"< 5.5.3","status":"affected"}]}],"references":[{"url":"https://github.com/tesseract-ocr/tesseract/security/advisories/GHSA-x3vq-7rr7-5x3h","name":"https://github.com/tesseract-ocr/tesseract/security/advisories/GHSA-x3vq-7rr7-5x3h","tags":["x_refsource_CONFIRM"]},{"url":"https://github.com/tesseract-ocr/tesseract/issues/4580","name":"https://github.com/tesseract-ocr/tesseract/issues/4580","tags":["x_refsource_MISC"]},{"url":"https://github.com/tesseract-ocr/tesseract/pull/4581","name":"https://github.com/tesseract-ocr/tesseract/pull/4581","tags":["x_refsource_MISC"]},{"url":"https://github.com/tesseract-ocr/tesseract/commit/55287a94b8044c05ce3fd10f5aca6ebbd238e518","name":"https://github.com/tesseract-ocr/tesseract/commit/55287a94b8044c05ce3fd10f5aca6ebbd238e518","tags":["x_refsource_MISC"]},{"url":"https://github.com/tesseract-ocr/tesseract/commit/82727cc11c34eaf1249af002d69f6bbae70993b9","name":"https://github.com/tesseract-ocr/tesseract/commit/82727cc11c34eaf1249af002d69f6bbae70993b9","tags":["x_refsource_MISC"]},{"url":"https://github.com/tesseract-ocr/tesseract/releases/tag/5.5.3","name":"https://github.com/tesseract-ocr/tesseract/releases/tag/5.5.3","tags":["x_refsource_MISC"]}],"metrics":[{"cvssV4_0":{"attackVector":"LOCAL","attackComplexity":"LOW","attackRequirements":"NONE","privilegesRequired":"NONE","userInteraction":"ACTIVE","vulnConfidentialityImpact":"NONE","vulnIntegrityImpact":"NONE","vulnAvailabilityImpact":"HIGH","subConfidentialityImpact":"NONE","subIntegrityImpact":"NONE","subAvailabilityImpact":"NONE","baseScore":6.7,"baseSeverity":"MEDIUM","vectorString":"CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:A/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N","version":"4.0"}}],"problemTypes":[{"descriptions":[{"cweId":"CWE-125","lang":"en","description":"CWE-125: Out-of-bounds Read","type":"CWE"}]}],"providerMetadata":{"shortName":"GitHub_M","orgId":"a0819718-46f1-4df5-94e2-005712e83aaa","dateUpdated":"2026-08-11T14:51:32.304Z"},"source":{"advisory":"GHSA-x3vq-7rr7-5x3h","discovery":"UNKNOWN"}},"adp":[{"title":"CISA ADP Vulnrichment","metrics":[{"other":{"type":"ssvc","content":{"timestamp":"2026-08-11T15:03:31.322396Z","id":"CVE-2026-73067","options":[{"Exploitation":"none"},{"Automatable":"no"},{"Technical Impact":"partial"}],"role":"CISA Coordinator","version":"2.0.3"}}}],"providerMetadata":{"shortName":"CISA-ADP","orgId":"134c704f-9b21-4f2e-91b3-4a467353bcc0","dateUpdated":"2026-08-11T15:03:45.105Z"}}]}}}