# CVE-2026-119341: Tesseract: File-controlled pointers still reach `delete` in ADAPT_CLASS_STRUCT destructor

Status: published. Published: 2026-10-30. Updated: 2026-11-02.

Tesseract is an open source OCR engine. Prior to 5.5.4, ReadAdaptedClass in src/classify/adaptive.cpp raw-reads an ADAPT_CLASS_STRUCT from a pre-adapted-template .a file without neutralizing TempProtos and Config pointer fields before any destructor path. When the legacy engine is selected, classify_use_pre_adapted_templates is enabled, and an attacker can write the output-basename .a file, the success or rejection path can pass file-controlled pointers to ~ADAPT_CLASS_STRUCT and operator delete, causing memory corruption and denial of service. This issue is fixed in version 5.5.4.

## Remediation

No remediation reported in collected sources

## Affected products and versions

- tesseract-ocr / tesseract: < 5.5.3 (affected). Source: CNA: GitHub_M

## Severity and prioritization

- CVSS 3.1: 0 (none); CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:N; source: CNA: GitHub_M

- CVSS 3.1: 0 (none); CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:N; source: NVD: security-advisories@github.com

- CISA KEV: No listing in collected sources

- EPSS: 0.27% as of 2026-11-02; percentile 19.22%

- SSVC: exploitation poc; automatable yes; technical impact partial; source ADP: CISA-ADP

- Weaknesses: CWE-763

## Exploit evidence

- exploit: https://github.com/tesseract-ocr/tesseract/security/advisories/GHSA-357f-833m-3f83 (ADP: CISA-ADP)

## References

- https://github.com/tesseract-ocr/tesseract/security/advisories/GHSA-357f-833m-3f83 (CNA: GitHub_M; x_refsource_CONFIRM)

- https://github.com/tesseract-ocr/tesseract/pull/4645 (CNA: GitHub_M; x_refsource_MISC)

- https://github.com/tesseract-ocr/tesseract/commit/614e971036d2b95d521057ff63d68d6612429b23 (CNA: GitHub_M; x_refsource_MISC)

- https://github.com/tesseract-ocr/tesseract/releases/tag/5.5.4 (CNA: GitHub_M; x_refsource_MISC)

- https://github.com/tesseract-ocr/tesseract/security/advisories/GHSA-357f-833m-3f83 (ADP: CISA-ADP; exploit)

- https://github.com/tesseract-ocr/tesseract/commit/614e971036d2b95d521057ff63d68d6612429b23 (security-advisories@github.com)

- https://github.com/tesseract-ocr/tesseract/pull/4645 (security-advisories@github.com)

- https://github.com/tesseract-ocr/tesseract/releases/tag/5.5.4 (security-advisories@github.com)

- https://github.com/tesseract-ocr/tesseract/security/advisories/GHSA-357f-833m-3f83 (security-advisories@github.com)

- https://github.com/tesseract-ocr/tesseract/security/advisories/GHSA-357f-833m-3f83 (134c704f-9b21-4f2e-91b3-4a467353bcc0)

## Provenance

- CNA: GitHub_M: https://www.cve.org/CVERecord?id=CVE-2026-119341; retrieved 2026-11-02; source updated 2026-11-02

- NVD: https://nvd.nist.gov/vuln/detail/CVE-2026-119341; retrieved 2026-11-02; source updated 2026-11-02

- FIRST EPSS: https://api.first.org/data/v1/epss?cve=CVE-2026-119341; retrieved 2026-11-02; source updated Not reported

Revision: 9e636dc7127528a5c0eba91e9987ca009608c5b453c000aff8ac7df2b634487d

Canonical: https://y2.dev/cve/CVE-2026-119341

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