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Tracking
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| Source | ID | Title |
|---|---|---|
Github GHSA |
GHSA-2r2c-cx56-8933 | JLine3 Telnet server: Unauthenticated Remote DoS via Unbounded Telnet NAWS Terminal Geometry |
Mon, 20 Jul 2026 16:30:00 +0000
| Type | Values Removed | Values Added |
|---|---|---|
| Metrics |
ssvc
|
Fri, 17 Jul 2026 21:30:00 +0000
| Type | Values Removed | Values Added |
|---|---|---|
| Description | 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 width and height as 16-bit unsigned integers and passes values such as 65535x65535 to setTerminalGeometry(), allowing an unauthenticated remote attacker to repeatedly alternate values and trigger continuous expensive rendering work that causes CPU exhaustion and denial of service. This issue is fixed in versions 3.30.14, 4.0.16, and 4.2.1. | |
| Title | JLine: Unauthenticated Remote DoS via Unbounded Telnet NAWS Terminal Geometry | |
| Weaknesses | CWE-400 | |
| References |
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| Metrics |
cvssV3_1
|
Subscriptions
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Status: PUBLISHED
Assigner: GitHub_M
Published:
Updated: 2026-07-20T15:21:23.382Z
Reserved: 2026-06-22T19:17:28.959Z
Link: CVE-2026-56741
Updated: 2026-07-20T15:21:18.349Z
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OpenCVE Enrichment
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Github GHSA