Linux Distros Unpatched Vulnerability : CVE-2026-56741

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - JLine is a Java library for handling console input. Prior to 3.30.14, 4.0.16, and 4.2.1, the JLine3 Telnet server remote-telnet module does not apply an upper...

DEBIAN-CVE-2026-56740

JLine is a Java library for handling console input. Prior to 3.30.14, 4.0.16, and 4.2.1, the JLine3 Telnet server remote-telnet module does not limit the number of environment variables a client may inject via the Telnet NEW-ENVIRON option, and TelnetIO.readNEVariables in TelnetIO.java:1127-1180...

DEBIAN-CVE-2026-56741

JLine is a Java library for handling console input. Prior to 3.30.14, 4.0.16, and 4.2.1, the JLine3 Telnet server remote-telnet module does not apply an upper bound to terminal dimensions received via the Telnet NAWS option, and TelnetIO.handleNAWS in TelnetIO.java:856-879 reads client-supplied...

CVE-2026-56740

JLine is a Java library for handling console input. Prior to 3.30.14, 4.0.16, and 4.2.1, the JLine3 Telnet server remote-telnet module does not limit the number of environment variables a client may inject via the Telnet NEW-ENVIRON option, and TelnetIO.readNEVariables in TelnetIO.java:1127-1180...

CVE-2026-56741

JLine is a Java library for handling console input. Prior to 3.30.14, 4.0.16, and 4.2.1, the JLine3 Telnet server remote-telnet module does not apply an upper bound to terminal dimensions received via the Telnet NAWS option, and TelnetIO.handleNAWS in TelnetIO.java:856-879 reads client-supplied...

CVE-2026-56740 JLine: Unauthenticated Remote Memory Exhaustion via Unbounded Telnet NEW-ENVIRON Variables

JLine is a Java library for handling console input. Prior to 3.30.14, 4.0.16, and 4.2.1, the JLine3 Telnet server remote-telnet module does not limit the number of environment variables a client may inject via the Telnet NEW-ENVIRON option, and TelnetIO.readNEVariables in TelnetIO.java:1127-1180...

CVE-2026-56740

JLine is a Java library for handling console input. Prior to 3.30.14, 4.0.16, and 4.2.1, the JLine3 Telnet server remote-telnet module does not limit the number of environment variables a client may inject via the Telnet NEW-ENVIRON option, and TelnetIO.readNEVariables in TelnetIO.java:1127-1180...

CVE-2026-56740 JLine: Unauthenticated Remote Memory Exhaustion via Unbounded Telnet NEW-ENVIRON Variables

JLine is a Java library for handling console input. Prior to 3.30.14, 4.0.16, and 4.2.1, the JLine3 Telnet server remote-telnet module does not limit the number of environment variables a client may inject via the Telnet NEW-ENVIRON option, and TelnetIO.readNEVariables in TelnetIO.java:1127-1180...

CVE-2026-56740

JLine is a Java library for handling console input. Prior to 3.30.14, 4.0.16, and 4.2.1, the JLine3 Telnet server remote-telnet module does not limit the number of environment variables a client may inject via the Telnet NEW-ENVIRON option, and TelnetIO.readNEVariables in TelnetIO.java:1127-1180...

CVE-2026-56740

JLine3 Telnet server remote-telnet module in JLine prior to versions 3.30.14, 4.0.16, and 4.2.1 does not limit the number of environment variables injected via Telnet NEW-ENVIRON. TelnetIO.readNEVariables() stores each variable pair in a HashMap within ConnectionData (lines 1127-1180), allowing a...

CVE-2026-56741 JLine: Unauthenticated Remote DoS via Unbounded Telnet NAWS Terminal Geometry

JLine is a Java library for handling console input. Prior to 3.30.14, 4.0.16, and 4.2.1, the JLine3 Telnet server remote-telnet module does not apply an upper bound to terminal dimensions received via the Telnet NAWS option, and TelnetIO.handleNAWS in TelnetIO.java:856-879 reads client-supplied...

CVE-2026-56741

JLine is a Java library for handling console input. Prior to 3.30.14, 4.0.16, and 4.2.1, the JLine3 Telnet server remote-telnet module does not apply an upper bound to terminal dimensions received via the Telnet NAWS option, and TelnetIO.handleNAWS in TelnetIO.java:856-879 reads client-supplied...

CVE-2026-56741

JLine3 Telnet server's remote-telnet module did not bound NAWS-terminal dimensions, reading width/height as 16-bit values and passing 65535x65535 to setTerminalGeometry. This allowed an unauthenticated remote attacker to induce repeated heavy rendering, causing CPU exhaustion Denial of Service. A...

CVE-2026-56741 JLine: Unauthenticated Remote DoS via Unbounded Telnet NAWS Terminal Geometry

JLine is a Java library for handling console input. Prior to 3.30.14, 4.0.16, and 4.2.1, the JLine3 Telnet server remote-telnet module does not apply an upper bound to terminal dimensions received via the Telnet NAWS option, and TelnetIO.handleNAWS in TelnetIO.java:856-879 reads client-supplied...

SUSE-SU-2026:22562-1 Security update for jline3

This update for jline3 fixes the following issues: Changes in jline3: unauthenticated remote memory exhaustion via unbounded Telnet 'NEW-ENVIRON variables bsc1269021...

OPENSUSE-SU-2026:21221-1 Security update for jline3

This update for jline3 fixes the following issues: Changes in jline3: unauthenticated remote memory exhaustion via unbounded Telnet 'NEW-ENVIRON variables bsc1269021...

openSUSE 16: jline3 / jline3-builtins / jline3-console / jline3-console-ui / etc (openSUSE-SU-2026:21221-1)

The remote openSUSE 16 host has packages installed that are affected by a vulnerability as referenced in the openSUSE- SU-2026:21221-1 advisory. Changes in jline3: unauthenticated remote memory exhaustion via unbounded Telnet 'NEW-ENVIRON variables bsc1269021 Tenable has extracted the preceding...

CVE-2026-13589

A vulnerability was identified in seladb PcapPlusPlus 25.05. This affects the function pcpp::TelnetLayer::getSubCommand of the file Packet++/src/TelnetLayer.cpp of the component Telnet Subnegotiation Packet Handler. The manipulation leads to heap-based buffer overflow. The attack can be initiated...

EUVD-2026-40150

A vulnerability was identified in seladb PcapPlusPlus 25.05. This affects the function pcpp::TelnetLayer::getSubCommand of the file Packet++/src/TelnetLayer.cpp of the component Telnet Subnegotiation Packet Handler. The manipulation leads to heap-based buffer overflow. The attack can be initiated...

CVE-2026-13589

A vulnerability was identified in seladb PcapPlusPlus 25.05. This affects the function pcpp::TelnetLayer::getSubCommand of the file Packet++/src/TelnetLayer.cpp of the component Telnet Subnegotiation Packet Handler. The manipulation leads to heap-based buffer overflow. The attack can be initiated...