tesseract-ocr has 11 CVEs on record between 2019 and 2026. Disclosure cadence is accelerating: 8 in the last 90 days against 0 in the 90 before. The busiest recent month was September 2026 with 8. The median CVSS is 7.1 (high). None have a confirmed exploitation report. The most common weakness class is CWE-787 (6).
CVEs per month
Last 12 months, by publish date
- Exploited share
- 0% vs 1% corpus
- Median CVSS
- 7.1
- Publish → KEV
- —
- Last 90 days
- 8 prev 0
Worst active — by depth score
CVE-2026-88053High· 7.8Tesseract is an open source OCR engine55CVE-2026-88051High· 7.8Tesseract is an open source OCR engine55CVE-2026-88048High· 7.1Tesseract is an open source OCR engine51CVE-2026-88052High· 7.8Tesseract is an open source OCR engine43CVE-2026-88047High· 7.8Tesseract is an open source OCR engine43
tesseract-ocr vulnerabilities
CVEs affecting tesseract-ocr, newest first. Open any entry for full detail, references, and exploit status.
11 CVEsRSS
CVE-2026-88053High· 7.8PoCTesseract is an open source OCR engine
Tesseract is an open source OCR engine. In version 5.5.3 and earlier, Classify::ReadIntTemplates in src/classify/intproto.cpp reads NumClassPruners, NumClasses, and NumProtoSets from the TESSDATA_INTTEMP component of a crafted .trainedda…
CVE-2026-88052High· 7.8Tesseract is an open source OCR engine
Tesseract is an open source OCR engine. In version 5.5.3 and earlier, UNICHARSET::load_via_fgets in src/ccutil/unicharset.cpp trusts the declared unichar count as a loop bound and uses id as an unchecked index into the unichars vector. u…
CVE-2026-88054Medium· 5.5PoCTesseract is an open source OCR engine
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 laye…
CVE-2026-88047High· 7.8Tesseract is an open source OCR engine
Tesseract is an open source OCR engine. In version 5.5.3 and earlier, Classify::ReadNormProtos in src/classify/normmatch.cpp parses the NORMPROTO component of a .traineddata file and uses std::istream::operator>>(char*) to extract a whit…
CVE-2026-88051High· 7.8PoCTesseract is an open source OCR engine
Tesseract is an open source OCR engine. In version 5.5.3 and earlier, the callback form of GenericVector::read in src/ccutil/genericvector.h reads the independent int32 fields reserved and size_used_ from a .traineddata model without a c…
CVE-2026-88049Medium· 5.5PoC⚖ disputedTesseract is an open source OCR engine
Tesseract is an open source OCR engine. In version 5.5.3 and earlier, prior .traineddata hardening added bounds checks to NetworkIO::CopyTimeStepGeneral and NetworkIO::Randomize in src/lstm/networkio.cpp but left NetworkIO::WriteTimeStep…
CVE-2026-88048High· 7.1PoCTesseract is an open source OCR engine
Tesseract is an open source OCR engine. In version 5.5.3 and earlier, FullyConnected::DeSerialize in src/lstm/fullyconnected.cpp does not validate the deserialized layer scalars ni_ and no_ against the weight-matrix dimensions. During Fu…
CVE-2026-88050Medium· 5.5PoCTesseract is an open source OCR engine
Tesseract is an open source OCR engine. In version 5.5.3 and earlier, RecodedCharID::DeSerialize in src/ccutil/unicharcompress.h validates length_ but accepts negative code_ values from a crafted .traineddata recoder component. UnicharCo…
CVE-2022-38266Medium· 6.5An issue in the Leptonica linked library (v1.79.0) allows attackers to cause an arithmetic exception leading to a Denial of Service (DoS) via a crafted JPEG file.
An issue in the Leptonica linked library (v1.79.0) allows attackers to cause an arithmetic exception leading to a Denial of Service (DoS) via a crafted JPEG file.
CVE-2021-36081High· 7.8Tesseract OCR 5.0.0-alpha-20201231 has a one_ell_conflict use-after-free during a strpbrk call.
Tesseract OCR 5.0.0-alpha-20201231 has a one_ell_conflict use-after-free during a strpbrk call.
CVE-2011-1136Medium· 4.7In tesseract 2.03 and 2.04, an attacker can rewrite an arbitrary user file by guessing the PID and creating a link to the user's file.
In tesseract 2.03 and 2.04, an attacker can rewrite an arbitrary user file by guessing the PID and creating a link to the user's file.