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Echo: jline-reader: security update to 3.30.15

medium Tenable Self-Hosted Container Security Plugin ID 473056

Description

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

 - JLine is a Java library for handling console input. From 3.0.0 until 3.30.15 and 4.3.1,
 DefaultHistory.matchPatterns(String patterns, String line) in
 reader/src/main/java/org/jline/reader/impl/history/DefaultHistory.java converts the HISTORY_IGNORE
 configuration value into a Java regular expression while escaping only part of its syntax, allowing other
 regex metacharacters to reach the backtracking engine. An attacker who can control application or user
 configuration can supply a nested-quantifier expression that is reevaluated whenever a command is added to
 history, consuming excessive CPU and indefinitely blocking the reader thread. This issue is fixed in
 versions 3.30.15 and 4.3.1. (CVE-2026-77420)

Solution

Update the jline-reader library and its related packages to version 3.30.15 or later.

See Also

https://advisory.echohq.com/cve/CVE-2026-77420

Plugin Details

Severity: Medium

ID: 473056

Version: Revision 1.1

Type: Local

Published: 10/6/2026

Updated: 10/6/2026

Risk Information

VPR

Risk Factor: Low

Score: 3

Percentile: 23.61

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-2026-77420

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

Vulnerability Information

Exploit Ease: No known exploits are available

Patch Publication Date: 10/6/2026

Vulnerability Publication Date: 9/23/2026

Reference Information

CVE: CVE-2026-77420