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Echo: jline-builtins: security update to 3.30.15

medium Tenable Self-Hosted Container Security Plugin ID 473054

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, the JLine built-in
 nano editor's regex search mode passes a user-controlled search term from doSearch(String text) in
 builtins/src/main/java/org/jline/builtins/Nano.java to Java's backtracking regular expression engine
 without a timeout or backtracking bound. A nested-quantifier expression evaluated against non-matching
 buffer content can consume excessive CPU and indefinitely block the editor session thread, and remote
 multi-user deployments can lose a worker thread for each affected session. This issue is fixed in versions
 3.30.15 and 4.3.1. (CVE-2026-77421)

Solution

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

See Also

https://advisory.echohq.com/cve/CVE-2026-77421

Plugin Details

Severity: Medium

ID: 473054

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: 6.8

Temporal Score: 5

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

CVSS Score Source: CVE-2026-77421

CVSS v3

Risk Factor: Medium

Base Score: 6.5

Temporal Score: 5.7

Vector: CVSS:3.0/AV:N/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-2026-77421