Vulnerability · Published Oct 30, 2026 · Assigned by GitHub_M

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

None 0.0

In plain English

A security flaw in tesseract from tesseract-ocr. Proof-of-concept exploit code is public. The chance it is exploited in the next 30 days is estimated at 0.3% (higher than 19% of all known vulnerabilities).

Severity (CVSS 3.1)0.0None

Exploit odds (30 days)0.3%top 80.7% of all CVEs

Exploited in the wildNo reportsCISA SSVC: poc

Attack toolingNoneno public tooling known

Official description

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.

Affected packages & fixed versions

Ecosystem	Package	Fixed in	Advisory
Debian:12	tesseract	no fix listed	DEBIAN-CVE-2026-119341
Debian:13	tesseract	no fix listed	DEBIAN-CVE-2026-119341
Debian:14	tesseract	no fix listed	DEBIAN-CVE-2026-119341
Ubuntu:26.10	tesseract	no fix listed	UBUNTU-CVE-2026-119341

Affected products (as reported)

Vendor	Product	Versions
tesseract-ocr	tesseract	< 5.5.3

Weakness: CWE-763 · Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:N

References

https://github.com/tesseract-ocr/tesseract/security/advisories/GHSA-357f-833m-3f83 x_refsource_CONFIRM
https://github.com/tesseract-ocr/tesseract/pull/4645 x_refsource_MISC
https://github.com/tesseract-ocr/tesseract/commit/614e971036d2b95d521057ff63d68d6612429b23 x_refsource_MISC
https://github.com/tesseract-ocr/tesseract/releases/tag/5.5.4 x_refsource_MISC