Detections
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Echo: tesseract: security update to 5.5.0-1+e5

medium Tenable Cloud Security Plugin ID 474842

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, 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. (CVE-2026-88054)

Solution

Update the tesseract library and its related packages to version 5.5.0-1+e5 or later.

See Also

https://advisory.echohq.com/cve/CVE-2026-88054

Plugin Details

Severity: Medium

ID: 474842

Version: Revision 1.1

Type: Local

Published: 10/16/2026

Updated: 10/16/2026

Risk Information

VPR

Risk Factor: Low

Score: 3

Percentile: 23.6

CVSS v2

Risk Factor: Medium

Base Score: 4.6

Temporal Score: 3.6

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

CVSS Score Source: CVE-2026-88054

CVSS v3

Risk Factor: Medium

Base Score: 5.5

Temporal Score: 5

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

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

CVSS v4

Risk Factor: Medium

Base Score: 6.9

Threat Score: 5.5

Threat Vector: CVSS:4.0/E:P

Vector: CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/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-2026-88054