CVE-2026-77420mediumCWE-1333

CVE-2026-77420: falha de média gravidade em jline3

JLine: ReDoS via `HISTORY_IGNORE` Configuration Variable

Publicada em · Atualizada em

Seguir esta CVE+ Monitorar jline3+ Monitorar jline3

Aviso por e-mail quando ela entrar no KEV, ganhar PoC pública ou subir de nota.

13Vexday Risk Score

Sem sinal de exploração. Nenhum artefato público de exploração conhecido até agora.

ssvc Trackcvss 5.5epss 0.2%
JLine is a Java library for handling console input. From 3.0.0 until 3.30.15 and 4.3.1, DefaultHistory.matchPatterns(String patterns, String line) in reader/src/main/java/org/jline/reader/impl/history/DefaultHistory.java converts the HISTORY_IGNORE configuration value into a Java regular expression while escaping only part of its syntax, allowing other regex metacharacters to reach the backtracking engine. An attacker who can control application or user configuration can supply a nested-quantifier expression that is reevaluated whenever a command is added to history, consuming excessive CPU and indefinitely blocking the reader thread. This issue is fixed in versions 3.30.15 and 4.3.1.
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Produtos afetados
jline · jline3
CVEs relacionadas — jline3

No mesmo produto, das mais perigosas para as menos.

CVE-2026-77422HIGHJLine: ReDoS in Built-in grep Command Amplified by Automatic `.*` WrappingEPSS 0.6%CVE-2026-56741HIGHJLine: Unauthenticated Remote DoS via Unbounded Telnet NAWS Terminal GeometryEPSS 0.6%CVE-2026-56740HIGHJLine: Unauthenticated Remote Memory Exhaustion via Unbounded Telnet NEW-ENVIRON VariablesEPSS 0.6%CVE-2026-77423HIGHJLine: ReDoS in Built-in Less Viewer SearchEPSS 0.5%CVE-2026-77421MEDIUMJLine: ReDoS in Nano Editor Regex Search ModeEPSS 0.4%