Tesseract: Double free and use after free in the PAGE XML renderer on right-to-left pages

MITRE NVD CVE.ORG JSON API

Summary

CVECVE-2026-119338
StatePUBLISHED
AssignerGitHub_M
Source PriorityCVE Program / NVD first with legacy fallback
Published2026-10-30 21:16:51 UTC
Updated2026-11-05 03:17:19 UTC
DescriptionTesseract is an open source OCR engine. From 5.4.0 until 5.5.4, AppendLinePolygon in src/api/pagerenderer.cpp destroys the caller-owned right-to-left Pta accumulator while receiving it by value, leaving line_top_rtl_pts and line_bottom_rtl_pts dangling. On an upright Hebrew or Arabic page at the default PAGE XML level, POLYGONFLAG with a false skewed_flag enters the vulnerable calls, while LEVELFLAG greater than zero provides an alternative gate. The calls repeatedly read and free the stale object, causing a double free and use after free and allowing corrupted coordinates to reach RecalcPolygonline. This issue is fixed in version 5.5.4.

Risk And Classification

Primary CVSS: v4.0 6.9 MEDIUM from [email protected]

CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:P/VC:L/VI:L/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X

EPSS: 0.001380000 probability, percentile 0.031590000 (date 2026-11-02)

Problem Types: CWE-125 | CWE-415 | CWE-416 | CWE-125 CWE-125: Out-of-bounds Read | CWE-415 CWE-415: Double Free | CWE-416 CWE-416: Use After Free

VersionSourceTypeScoreSeverityVector
4.0[email protected]Secondary6.9MEDIUMCVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:P/VC:L/VI:L/VA:H/SC:N/SI:N/SA:N/E:X/C...
4.0CNADECLARED6.9MEDIUMCVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:P/VC:L/VI:L/VA:H/SC:N/SI:N/SA:N

CVSS v4.0 Breakdown

Attack Vector
Local
Attack Complexity
Low
Attack Requirements
None
Privileges Required
None
User Interaction
Passive
Confidentiality
Low
Integrity
Low
Availability
High
Sub Conf.
None
Sub Integrity
None
Sub Availability
None

CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:P/VC:L/VI:L/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X

Vendor Declared Affected Products

SourceVendorProductVersionPlatforms
CNA Tesseract-ocr Tesseract affected >= 5.4.0, < 5.5.4 Not specified

References

ReferenceSourceLinkTags
github.com/tesseract-ocr/tesseract/releases/tag/5.5.4 [email protected] github.com
github.com/tesseract-ocr/tesseract/security/advisories/GHSA-vf7v-2h4f-6f4j 134c704f-9b21-4f2e-91b3-4a467353bcc0 github.com
github.com/tesseract-ocr/tesseract/pull/4647 [email protected] github.com
github.com/tesseract-ocr/tesseract/commit/fa52414ff1fd13ae4b00048d2498f9... [email protected] github.com
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