Detections
Analytics

Echo: nltk: security update to 3.10.0

high Tenable Cloud Security Plugin ID 465504

Description

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

 - NLTK versions before 3.10.0 contain a regular expression denial of service vulnerability in Text.findall()
 and TokenSearcher.findall() methods that accept user-supplied regular expressions without validation or
 timeout. Attackers can supply crafted regex patterns that cause catastrophic backtracking, resulting in
 indefinite CPU saturation and denial of service to all users of the Python process. (CVE-2026-80205)

Solution

Update the nltk library and its related packages to version 3.10.0 or later.

See Also

https://advisory.echohq.com/cve/CVE-2026-80205

Plugin Details

Severity: High

ID: 465504

Version: Revision 1.1

Type: Local

Published: 10/2/2026

Updated: 10/3/2026

Supported Sensors: Tenable Cloud Security, Tenable Self-Hosted Container Security

Risk Information

VPR

Risk Factor: Medium

Score: 5

Percentile: 93.48

CVSS v2

Risk Factor: High

Base Score: 7.8

Temporal Score: 6.1

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

CVSS Score Source: CVE-2026-80205

CVSS v3

Risk Factor: High

Base Score: 7.5

Temporal Score: 6.7

Vector: CVSS:3.0/AV:N/AC:L/PR:N/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: High

Base Score: 8.7

Threat Score: 7.7

Threat Vector: CVSS:4.0/E:P

Vector: CVSS:4.0/AV:N/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: 9/10/2026

Vulnerability Publication Date: 8/26/2026

Reference Information

CVE: CVE-2026-80205