SUSE-SU-2026:22856-1: important: Security update for jline3

[SLE-SECURITY-UPDATES]

# Security update for jline3

Announcement ID: SUSE-SU-2026:22856-1  
Release Date: 2026-07-22T16:48:17Z  
Rating: important  
References:

  * bsc#1269021
  * bsc#1270083

  
Cross-References:

  * CVE-2026-56740
  * CVE-2026-56741

  
CVSS scores:

  * CVE-2026-56740 ( SUSE ):  7.5 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
  * CVE-2026-56740 ( NVD ):  7.5 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
  * CVE-2026-56741 ( SUSE ):  7.5 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
  * CVE-2026-56741 ( NVD ):  7.5 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

  
Affected Products:

  * SUSE Linux Enterprise Server 16.0
  * SUSE Linux Enterprise Server for SAP applications 16.0

  
  
An update that solves two vulnerabilities can now be installed.

## Description:

This update for jline3 fixes the following issues:

  * CVE-2026-56740: unauthenticated remote memory exhaustion via unbounded
    Telnet `NEW-ENVIRON` variables (bsc#1269021).
  * CVE-2026-56741: unauthenticated remote DoS via Unbounded Telnet NAWS
    Terminal Geometry (bsc#1270083).

Changes for jline3:

  * Update to upstream version 3.30.15

  * fix: guard regex matching against catastrophic backtracking (ReDoS) (#2018,
    backport of #2012):

  * Adds SafeRegex utility with TimeoutCharSequence to enforce wall-clock
    deadlines during regex matching
  * Fixes 8 locations across terminal, reader, and builtins where user-
    controlled input could trigger catastrophic backtracking
  * Addresses GHSA-r2xf-8xr9-62gw, GHSA-2v9w-34q6-wpqx, GHSA-ph9c-7hw9-vhhw,
    GHSA-5q95-hrpc-m3w3
  * fix: backport security hardening (#1986, #1995):
  * Create persisted history file with owner-only permissions
  * Use exclusive create for extracted native library temp files
  * fix: warn on insecure permissions when history file created concurrently

## Patch Instructions:

To install this SUSE update use the SUSE recommended installation methods like
YaST online_update or "zypper patch".  
Alternatively you can run the command listed for your product:

  * SUSE Linux Enterprise Server 16.0  
    zypper in -t patch SUSE-SLES-16.0-1334=1

  * SUSE Linux Enterprise Server for SAP applications 16.0  
    zypper in -t patch SUSE-SLES-16.0-1334=1

## Package List:

  * SUSE Linux Enterprise Server for SAP applications 16.0 (noarch)
    * jline3-terminal-jansi-3.30.15-160000.1.1
    * jline3-reader-3.30.15-160000.1.1
    * jline3-console-ui-3.30.15-160000.1.1
    * jline3-console-3.30.15-160000.1.1
    * jline3-remote-telnet-3.30.15-160000.1.1
    * jline3-curses-3.30.15-160000.1.1
    * jline3-builtins-3.30.15-160000.1.1
    * jline3-terminal-jna-3.30.15-160000.1.1
    * jline3-jansi-core-3.30.15-160000.1.1
    * jline3-terminal-3.30.15-160000.1.1
    * jline3-terminal-jni-3.30.15-160000.1.1
    * jline3-javadoc-3.30.15-160000.1.1
    * jline3-style-3.30.15-160000.1.1
  * SUSE Linux Enterprise Server for SAP applications 16.0 (ppc64le x86_64)
    * jline3-native-debuginfo-3.30.15-160000.1.1
    * jline3-native-3.30.15-160000.1.1
    * jline3-3.30.15-160000.1.1
    * jline3-debugsource-3.30.15-160000.1.1
    * jline3-jansi-3.30.15-160000.1.1
  * SUSE Linux Enterprise Server 16.0 (aarch64 ppc64le s390x x86_64)
    * jline3-native-debuginfo-3.30.15-160000.1.1
    * jline3-native-3.30.15-160000.1.1
    * jline3-3.30.15-160000.1.1
    * jline3-debugsource-3.30.15-160000.1.1
    * jline3-jansi-3.30.15-160000.1.1
  * SUSE Linux Enterprise Server 16.0 (noarch)
    * jline3-terminal-jansi-3.30.15-160000.1.1
    * jline3-reader-3.30.15-160000.1.1
    * jline3-console-ui-3.30.15-160000.1.1
    * jline3-console-3.30.15-160000.1.1
    * jline3-remote-telnet-3.30.15-160000.1.1
    * jline3-curses-3.30.15-160000.1.1
    * jline3-builtins-3.30.15-160000.1.1
    * jline3-terminal-3.30.15-160000.1.1
    * jline3-terminal-jni-3.30.15-160000.1.1
    * jline3-jansi-core-3.30.15-160000.1.1
    * jline3-terminal-jna-3.30.15-160000.1.1
    * jline3-javadoc-3.30.15-160000.1.1
    * jline3-style-3.30.15-160000.1.1

## References:

  * https://www.suse.com/security/cve/CVE-2026-56740.html
  * https://www.suse.com/security/cve/CVE-2026-56741.html
  * https://bugzilla.suse.com/show_bug.cgi?id=1269021
  * https://bugzilla.suse.com/show_bug.cgi?id=1270083

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