Description
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.
Affected products
| Vendor | Product | Affected | Fixed |
|---|---|---|---|
| jline | jline3 | >= 3.0.0, < 3.30.15, >= 4.0.0, < 4.3.1 | — |
Fixed in Linux distributions
Distributions backport fixes, so the version that fixes this vulnerability differs per release — upgrade to at least the version shown. From the distributions' security trackers and advisories.
Debian
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Debian 14 | jline3 | No fix yet | — |
| Debian 13 | jline3 | No fix yet | — |
| Debian 12 | jline3 | No fix yet | — |
Ubuntu
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Ubuntu 26.10 | jline +2 | No fix yet | — |
| Ubuntu 26.04 LTS | jline +2 | No fix yet | — |
| Ubuntu 24.04 LTS | jline +2 | No fix yet | — |
| Ubuntu 22.04 LTS | jline +2 | No fix yet | — |
| Ubuntu 20.04 LTS | jline +1 | No fix yet | — |
Show 3 more (older releases, extended support, other products)Fewer releases
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Ubuntu 18.04 LTS | jline +1 | No fix yet | — |
| Ubuntu 16.04 LTS | jline +1 | No fix yet | — |
| Ubuntu 14.04 LTS | jline +1 | No fix yet | — |
Wolfi
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Wolfi rolling | akhq | 0.28.0-r9 | — |
| Wolfi rolling | apache-pulsar-4.2 | 4.2.4-r6 | — |
| Wolfi rolling | druid | 37.0.0-r60 | — |
| Wolfi rolling | kafka-4.1 | 4.1.2-r9 | — |
| Wolfi rolling | kafka-4.2 | 4.2.1-r8 | — |
| Wolfi rolling | opensearch-3-ml-commons | 3.8.0-r4 | — |
| Wolfi rolling | scala-3.8 +5 | No fix yet | — |
| Wolfi rolling | sonarqube | 26.9.0.129388-r4 | — |
| Wolfi rolling | spark-4.0-scala-2.13 | 4.0.4-r6 | — |
| Wolfi rolling | spark-4.1-scala-2.13 | 4.1.3-r5 | — |
| Wolfi rolling | tez | 0.10.5-r38 | — |
| Wolfi rolling | zookeeper-3.9 | 3.9.6-r1 | — |
Affected packages
| Ecosystem | Package | Affected | Fixed | Record |
|---|---|---|---|---|
| Maven | org.jline:jline-reader | >= 4.0.0, < 4.3.1 | 4.3.1 | GHSA-5q95-hrpc-m3w3 |
| Maven | org.jline:jline-reader | >= 3.0.0, < 3.30.15 | 3.30.15 | GHSA-5q95-hrpc-m3w3 |
References
- https://github.com/jline/jline3/security/advisories/GHSA-5q95-hrpc-m3w3
- https://github.com/jline/jline3/pull/2012
- https://github.com/jline/jline3/pull/2018
- https://github.com/jline/jline3/commit/1d5fc3099e77938b971e197211cad2d4fbb17541
- https://github.com/jline/jline3/commit/341ee69ccc57b7733c1b40d6993219b64b3206ae
- https://github.com/jline/jline3/releases/tag/4.3.1
- https://github.com/jline/jline3/releases/tag/jline-3.30.15