Echo: tesseract: security update to 5.5.0-1+e7

high Tenable Self-Hosted Container Security Plugin ID 476079

Description

There are packages installed that are affected by a vulnerability referenced in the following CVE:

- 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 .traineddata file and uses those values as loop bounds without validating them
against MAX_NUM_CLASS_PRUNERS, MAX_NUM_CLASSES, and MAX_NUM_PROTO_SETS. The loops store heap pointers into
fixed-capacity ClassPruners and ProtoSets arrays in INT_TEMPLATES_STRUCT and INT_CLASS_STRUCT, so an
oversized count causes heap out-of-bounds pointer writes during legacy-classifier initialization before
OCR begins, resulting in heap corruption, a crash, or potentially controlled corruption. No fixed release
is available as of this review. (CVE-2026-88053)

Solution

Update the tesseract library and its related packages to version 5.5.0-1+e7 or later.

Plugin Details

Severity: High

ID: 476079

Version: Revision 1.1

Type: Local

Family: Echo Local Security Checks

Published: 10/16/2026

Updated: 10/16/2026

Risk Information

VPR

Risk Factor: Medium

Score: 4.9

Percentile: 58.21

CVSS v2

Risk Factor: Medium

Base Score: 6.8

Temporal Score: 5.3

Vector: CVSS2#AV:L/AC:L/Au:S/C:C/I:C/A:C

CVSS Score Source: CVE-2026-88053

CVSS v3

Risk Factor: High

Base Score: 7.8

Temporal Score: 7

Vector: CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Temporal Vector: CVSS:3.0/E:P/RL:O/RC:C

CVSS v4

Risk Factor: High

Base Score: 8.6

Threat Score: 7.3

Threat Vector: CVSS:4.0/E:P

Vector: CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N

Vulnerability Information

Exploit Available: true

Exploit Ease: Exploits are available

Patch Publication Date: 9/12/2026

Vulnerability Publication Date: 9/10/2026

Reference Information

CVE: CVE-2026-88053

Detections

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