# Tesseract OCR Tesseract vulnerabilities Source: https://junglewise.ai/threats/technologies/tesseract Publisher: Junglewise Threat Intelligence, https://junglewise.ai/threats Updated: 9 November 2026, 03:07 UTC. Rebuilt every hour. Data: https://junglewise.ai/threats/technologies/tesseract.json License: CC BY 4.0 with a link back Junglewise Threat Intelligence has tracked 9 vulnerabilities in Tesseract OCR Tesseract: 0 in the last 7 days and 9 in the last 90 days, 0 of them critical and 0 exploited in the wild. The most recent, CVE-2026-119341, was published on 30 October 2026. 2 vulnerabilities in the last four weeks, up from none in the four before. ## Counts - Last 7 days: 0 - Last 30 days: 2 - Last 90 days: 9 - All time: 9 (0 critical, 0 exploited in the wild) ## About Tesseract OCR Tesseract Open-source optical character recognition library that converts images of text into machine-readable text. ## Latest Tesseract OCR Tesseract vulnerabilities - [CVE-2026-119341: Tesseract unsafe pointer deserialization in adaptive templates](https://junglewise.ai/threats/cve-2026-119341-tesseract-is-an-open-source-ocr-engine-prior-to-5-5-4) (info, CVSS 0, published 30 Oct 2026) - [CVE-2026-119340: Tesseract matrix deserialization integer overflow denial of service](https://junglewise.ai/threats/cve-2026-119340-tesseract-is-an-open-source-ocr-engine-prior-to-5-5-4-generic-2d) (medium, CVSS 5.5, published 30 Oct 2026) - [CVE-2026-88054: Tesseract empty network stack denial of service in model deserialization](https://junglewise.ai/threats/cve-2026-88054-tesseract-empty-network-stack-denial-of-service-in-model) (medium, CVSS 5.5, published 10 Sep 2026) - [CVE-2026-88053: Tesseract OCR heap out-of-bounds write in inttemp deserialization](https://junglewise.ai/threats/cve-2026-88053-tesseract-ocr-heap-out-of-bounds-write-in-inttemp-deserialization) (high, CVSS 7.8, published 10 Sep 2026) - [CVE-2026-88052: Tesseract heap out-of-bounds write in UNICHARSET loading](https://junglewise.ai/threats/cve-2026-88052-tesseract-heap-out-of-bounds-write-in-unicharset-loading) (high, CVSS 7.8, published 10 Sep 2026) - [CVE-2026-88051: Tesseract heap out-of-bounds write in GenericVector::read](https://junglewise.ai/threats/cve-2026-88051-tesseract-heap-out-of-bounds-write-in-genericvector-read) (high, CVSS 7.8, published 10 Sep 2026) - [CVE-2026-88050: Tesseract out-of-bounds write in UnicharCompress deserialization](https://junglewise.ai/threats/cve-2026-88050-tesseract-out-of-bounds-write-in-unicharcompress-deserialization) (medium, CVSS 5.5, published 10 Sep 2026) - [CVE-2026-88049: Tesseract LSTM heap out-of-bounds write via dimension mismatch](https://junglewise.ai/threats/cve-2026-88049-tesseract-lstm-heap-out-of-bounds-write-via-dimension-mismatch) (medium, CVSS 5.5, published 10 Sep 2026) - [CVE-2026-88047: Tesseract stack buffer overflow in ReadNormProtos](https://junglewise.ai/threats/cve-2026-88047-tesseract-stack-buffer-overflow-in-readnormprotos) (high, CVSS 7.8, published 10 Sep 2026) ## Most severe Tesseract OCR Tesseract vulnerabilities - [CVE-2026-88053: Tesseract OCR heap out-of-bounds write in inttemp deserialization](https://junglewise.ai/threats/cve-2026-88053-tesseract-ocr-heap-out-of-bounds-write-in-inttemp-deserialization) (high, CVSS 7.8, published 10 Sep 2026) - [CVE-2026-88052: Tesseract heap out-of-bounds write in UNICHARSET loading](https://junglewise.ai/threats/cve-2026-88052-tesseract-heap-out-of-bounds-write-in-unicharset-loading) (high, CVSS 7.8, published 10 Sep 2026) - [CVE-2026-88051: Tesseract heap out-of-bounds write in GenericVector::read](https://junglewise.ai/threats/cve-2026-88051-tesseract-heap-out-of-bounds-write-in-genericvector-read) (high, CVSS 7.8, published 10 Sep 2026) - [CVE-2026-88047: Tesseract stack buffer overflow in ReadNormProtos](https://junglewise.ai/threats/cve-2026-88047-tesseract-stack-buffer-overflow-in-readnormprotos) (high, CVSS 7.8, published 10 Sep 2026) - [CVE-2026-88054: Tesseract empty network stack denial of service in model deserialization](https://junglewise.ai/threats/cve-2026-88054-tesseract-empty-network-stack-denial-of-service-in-model) (medium, CVSS 5.5, published 10 Sep 2026) - [CVE-2026-88050: Tesseract out-of-bounds write in UnicharCompress deserialization](https://junglewise.ai/threats/cve-2026-88050-tesseract-out-of-bounds-write-in-unicharcompress-deserialization) (medium, CVSS 5.5, published 10 Sep 2026) - [CVE-2026-88049: Tesseract LSTM heap out-of-bounds write via dimension mismatch](https://junglewise.ai/threats/cve-2026-88049-tesseract-lstm-heap-out-of-bounds-write-via-dimension-mismatch) (medium, CVSS 5.5, published 10 Sep 2026) - [CVE-2026-119340: Tesseract matrix deserialization integer overflow denial of service](https://junglewise.ai/threats/cve-2026-119340-tesseract-is-an-open-source-ocr-engine-prior-to-5-5-4-generic-2d) (medium, CVSS 5.5, published 30 Oct 2026) - [CVE-2026-119341: Tesseract unsafe pointer deserialization in adaptive templates](https://junglewise.ai/threats/cve-2026-119341-tesseract-is-an-open-source-ocr-engine-prior-to-5-5-4) (info, CVSS 0, published 30 Oct 2026) ## Vulnerabilities per week 2 vulnerabilities in the last four weeks, up from none in the four before. | Week of | Vulns | Critical | Exploited | | --- | --- | --- | --- | | 17 Aug 2026 | 0 | 0 | 0 | | 24 Aug 2026 | 0 | 0 | 0 | | 31 Aug 2026 | 0 | 0 | 0 | | 7 Sep 2026 | 7 | 0 | 0 | | 14 Sep 2026 | 0 | 0 | 0 | | 21 Sep 2026 | 0 | 0 | 0 | | 28 Sep 2026 | 0 | 0 | 0 | | 5 Oct 2026 | 0 | 0 | 0 | | 12 Oct 2026 | 0 | 0 | 0 | | 19 Oct 2026 | 0 | 0 | 0 | | 26 Oct 2026 | 2 | 0 | 0 | | 2 Nov 2026 | 0 | 0 | 0 | | 9 Nov 2026 | 0 | 0 | 0 | ## Sources NVD, GitHub Security Advisories, OSV, the CISA Known Exploited Vulnerabilities catalog, FIRST EPSS and vendor advisories. Rebuilt every hour. Cite as: Junglewise Threat Intelligence, "Tesseract OCR Tesseract vulnerabilities", https://junglewise.ai/threats/technologies/tesseract, 9 November 2026.