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.

oracle CPUOct2026: MySQL Cluster >=9.7.0|<=9.7.4

oracle CPUOct2026: MySQL Cluster >=8.0.0|<=8.0.38

oracle CPUOct2026: MySQL Cluster >=8.4.0|<=8.4.13

oracle CPUOct2026: MySQL Cluster >=8.0.0|<=8.0.50

oracle CPUOct2026: MySQL Cluster >=26.7.0|<=26.7.2

oracle CPUOct2026: MySQL Server >=8.4.0|<=8.4.13

oracle CPUOct2026: MySQL Server >=9.7.0|<=9.7.4

The 12.2.1.4.0 and 14.1.1.0.0 versions of Coherence installed on the remote host are affected by multiple vulnerabilities as referenced in the October 2026 CPU advisory.

  - Vulnerability in the Oracle Coherence product of Oracle Fusion Middleware (component: Centralized Thirdparty     Jars (jline)). Supported versions that are affected are 12.2.1.4.0 and 14.1.1.0.0. Easily exploitable     vulnerability allows unauthenticated attacker with network access via TCP to compromise Oracle Coherence.
    Successful attacks of this vulnerability can result in unauthorized ability to cause a hang or frequently     repeatable crash (complete DOS) of Oracle Coherence. (CVE-2026-56740, CVE-2026-56741, CVE-2026-77420,     CVE-2026-77421, CVE-2026-77422)

Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version number.

There are packages installed that are affected by a vulnerability referenced in the following CVE:

  - 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. (CVE-2026-77420)

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. 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. (CVE-2026-77420)

Note that Nessus relies on the presence of the package as reported by the vendor.

ID	Name	Product	Family	Type	Severity
373754	Oracle Coherence (October 2026 CPU)	Nessus	Misc.	Local	high
473056	Echo: org.jline:jline-reader: security update to 3.30.15	Tenable Cloud Security	Echo Local Security Checks	Local	medium
473056	Echo: org.jline:jline-reader: security update to 3.30.15	Tenable Self-Hosted Container Security	Echo Local Security Checks	Local	medium
350262	Linux Distros Unpatched Vulnerability : CVE-2026-77420	Nessus	Misc.	Local	medium

Detections

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CVE-2026-77420

medium

Tenable Plugins

Coming Soon

high

medium

medium

medium