{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-88054","assignerOrgId":"a0819718-46f1-4df5-94e2-005712e83aaa","state":"PUBLISHED","assignerShortName":"GitHub_M","dateReserved":"2026-09-09T21:22:45.434Z","datePublished":"2026-09-10T17:39:54.148Z","dateUpdated":"2026-09-10T18:07:14.601Z"},"containers":{"cna":{"title":"Tesseract: Denial of service via empty-stack dereference in Plumbing/Series at model load","problemTypes":[{"descriptions":[{"cweId":"CWE-125","lang":"en","description":"CWE-125: Out-of-bounds Read","type":"CWE"}]},{"descriptions":[{"cweId":"CWE-824","lang":"en","description":"CWE-824: Access of Uninitialized Pointer","type":"CWE"}]}],"metrics":[{"cvssV4_0":{"attackVector":"LOCAL","attackComplexity":"LOW","attackRequirements":"NONE","privilegesRequired":"NONE","userInteraction":"NONE","vulnConfidentialityImpact":"NONE","vulnIntegrityImpact":"NONE","vulnAvailabilityImpact":"HIGH","subConfidentialityImpact":"NONE","subIntegrityImpact":"NONE","subAvailabilityImpact":"NONE","baseScore":6.9,"baseSeverity":"MEDIUM","vectorString":"CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N","version":"4.0"}}],"references":[{"name":"https://github.com/tesseract-ocr/tesseract/security/advisories/GHSA-f6h7-cqr4-6fx4","tags":["x_refsource_CONFIRM"],"url":"https://github.com/tesseract-ocr/tesseract/security/advisories/GHSA-f6h7-cqr4-6fx4"},{"name":"https://github.com/tesseract-ocr/tesseract/commit/552771236b0d80cbdb0c7dd856120fa21a4672e5","tags":["x_refsource_MISC"],"url":"https://github.com/tesseract-ocr/tesseract/commit/552771236b0d80cbdb0c7dd856120fa21a4672e5"}],"affected":[{"vendor":"tesseract-ocr","product":"tesseract","versions":[{"version":"<= 5.5.3","status":"affected"}]}],"providerMetadata":{"orgId":"a0819718-46f1-4df5-94e2-005712e83aaa","shortName":"GitHub_M","dateUpdated":"2026-09-10T17:39:54.148Z"},"descriptions":[{"lang":"en","value":"Tesseract is an open source OCR engine. In version 5.5.3 and earlier, Plumbing::DeSerialize in src/lstm/plumbing.cpp rejects excessively large network stacks but accepts a zero-length stack for NT_SERIES, NT_PARALLEL, or NT_REVERSED layers in a crafted .traineddata model. During LSTMRecognizer initialization in src/lstm/lstmrecognizer.cpp, CacheXScaleFactor(XScaleFactor()) reaches Series::CacheXScaleFactor in src/lstm/series.cpp, which dereferences stack_[0] on the empty vector and invokes a virtual method through an invalid Network pointer. This causes a deterministic crash and denial of service at model load. No fixed release is available as of this review."}],"source":{"advisory":"GHSA-f6h7-cqr4-6fx4","discovery":"UNKNOWN"}},"adp":[{"references":[{"url":"https://github.com/tesseract-ocr/tesseract/security/advisories/GHSA-f6h7-cqr4-6fx4","tags":["exploit"]}],"metrics":[{"other":{"type":"ssvc","content":{"timestamp":"2026-09-10T18:06:46.791495Z","id":"CVE-2026-88054","options":[{"Exploitation":"poc"},{"Automatable":"no"},{"Technical Impact":"partial"}],"role":"CISA Coordinator","version":"2.0.3"}}}],"title":"CISA ADP Vulnrichment","providerMetadata":{"orgId":"134c704f-9b21-4f2e-91b3-4a467353bcc0","shortName":"CISA-ADP","dateUpdated":"2026-09-10T18:07:14.601Z"}}]}}