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Tracking
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| Source | ID | Title |
|---|---|---|
Github GHSA |
GHSA-47qp-hqvx-6r3f | JLine3 Telnet server: Unauthenticated Remote Memory Exhaustion via Unbounded Telnet NEW-ENVIRON Variables |
Mon, 20 Jul 2026 14:30:00 +0000
| Type | Values Removed | Values Added |
|---|---|---|
| Metrics |
ssvc
|
Fri, 17 Jul 2026 21:45:00 +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 limit the number of environment variables a client may inject via the Telnet NEW-ENVIRON option, and TelnetIO.readNEVariables() in TelnetIO.java:1127-1180 stores each variable pair in a HashMap held by ConnectionData, allowing an unauthenticated attacker to flood unique variable pairs before the terminating IAC SE byte and exhaust JVM heap memory with an OutOfMemoryError. This issue is fixed in versions 3.30.14, 4.0.16, and 4.2.1. | |
| Title | JLine: Unauthenticated Remote Memory Exhaustion via Unbounded Telnet NEW-ENVIRON Variables | |
| Weaknesses | CWE-400 | |
| References |
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| Metrics |
cvssV3_1
|
Subscriptions
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Status: PUBLISHED
Assigner: GitHub_M
Published:
Updated: 2026-07-20T13:58:00.902Z
Reserved: 2026-06-22T19:17:28.959Z
Link: CVE-2026-56740
Updated: 2026-07-20T13:57:28.578Z
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OpenCVE Enrichment
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Github GHSA