CVE-2026-88054 - Tesseract: Denial of service via empty-stack dereference in Plumbing/Series at model load

CVE-2026-88054 - Tesseract: Denial of service via empty-stack dereference in Plumbing/Series at model load

https://cvefeed.io/rssfeed/latest.atom / Thu, 09/10/2026 - 22:31
CVE ID :CVE-2026-88054
Published : Sept. 10, 2026, 6:18 p.m. | 48 minutes ago
Description :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.
Severity: 6.9 | MEDIUM
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