Echo: tesseract: security update to 5.5.0-1+e6

medium Tenable Cloud Security Plugin ID 474769

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, RecodedCharID::DeSerialize in
src/ccutil/unicharcompress.h validates length_ but accepts negative code_ values from a crafted
.traineddata recoder component. UnicharCompress::ComputeCodeRange in src/ccutil/unicharcompress.cpp can
consequently produce code_range_ equal to zero, after which SetupDecoder indexes is_valid_start_ with the
negative code on a size-zero vector. The resulting out-of-bounds bit write uses a large wrapped index and
reliably causes a wild-address crash or allocation failure on the default LSTM engine. No fixed release is
available as of this review. (CVE-2026-88050)

Solution

Update the tesseract library and its related packages to version 5.5.0-1+e6 or later.

See Also

https://advisory.echohq.com/cve/CVE-2026-88050

Plugin Details

Severity: Medium

ID: 474769

Version: Revision 1.1

Type: Local

Published: 10/16/2026

Updated: 10/16/2026

Risk Information

VPR

Risk Factor: Low

Score: 3

Percentile: 23.65

CVSS v2

Risk Factor: Medium

Base Score: 4.6

Temporal Score: 3.4

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

CVSS Score Source: CVE-2026-88050

CVSS v3

Risk Factor: Medium

Base Score: 5.5

Temporal Score: 4.8

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:U/RL:O/RC:C

CVSS v4

Risk Factor: Medium

Base Score: 6.9

Threat Score: 4.6

Threat Vector: CVSS:4.0/E:U

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 Ease: No known exploits are available

Patch Publication Date: 9/12/2026

Vulnerability Publication Date: 9/10/2026

Reference Information

CVE: CVE-2026-88050