Vulnerabilities in pkg:maven/org.apache.shenyu/shenyu

PACKAGE
Advisory Identifier: GHSA-cw56-j3fm-7w57
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Advisory Summary

CVE-2022-26650 is a HIGH (CVSS 7.5) denial of service vulnerability (CWE-1333: Inefficient Regular Expression Complexity) affecting Shenyu libraries in the Maven ecosystem. The issue involves regular expression denial of service in apache shenyu. Remediation is available by upgrading affected packages to version 2.4.3.

1 Known Advisory Record(s)
Package Vulnerability Intelligence

pkg:maven/org.apache.shenyu/shenyu

1 Known Advisory Record(s)

Vulnerability advisories affecting package pkg:maven/org.apache.shenyu/shenyu. Select an advisory below to view technical details or fixes.

Advisory ID CVE / NVD Severity Summary
GHSA-cw56-j3fm-7w57 CVE-2022-26650 HIGH Regular expression denial of service in Apache ShenYu

CVE-2022-26650 at a Glance

CVE Identifier CVE-2022-26650
GHSA Identifier GHSA-cw56-j3fm-7w57
Severity HIGH
CVSS v3.1 Base Score 7.5
CWE Classification CWE-1333: Inefficient Regular Expression Complexity
Affected Product Shenyu
Package Ecosystem Maven
Published Date
Last Updated

Security Impact

CVSS: 7.5

The security impact metrics below are parsed directly from the CVSS v3.1 vector string (CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H).

Attack Vector Network (AV:N)
Attack Complexity Low (AC:L)
Privileges Required None (PR:N)
User Interaction None (UI:N)
Scope Unchanged (S:U)
Confidentiality None (C:N)
Integrity None (I:N)
Availability High (A:H)

How to Fix CVE-2022-26650

To remediate this vulnerability, upgrade all affected Shenyu dependencies to a patched release. Both direct and transitive dependencies should be checked, as frameworks or security libraries may pull in vulnerable versions transitively.

org.apache.shenyu:shenyu fixed: 2.4.3 
<dependency>
    <groupId>org.apache.shenyu</groupId>
    <artifactId>shenyu</artifactId>
    <version>2.4.3</version>
</dependency>
org.apache.shenyu:shenyu-bootstrap fixed: 2.4.3 
<dependency>
    <groupId>org.apache.shenyu</groupId>
    <artifactId>shenyu-bootstrap</artifactId>
    <version>2.4.3</version>
</dependency>
Verify Direct and Transitive Dependencies

Run the following command in your project directory to verify that all resolved dependencies use the patched release: 

mvn dependency:tree -Dincludes=org.apache.shenyu

How to Check if You Are Affected

To determine whether your Java application is affected by CVE-2022-26650, inspect your build dependencies using the Maven Dependency Plugin:

mvn dependency:tree -Dincludes=org.apache.shenyu

Analyze the terminal output to locate any version of Shenyu in your dependency tree. If any resolved version matches the vulnerable ranges listed in the table below (for example, versions earlier than 2.4.3), your application is affected.

Note: The mvn dependency:tree -Dincludes=org.apache.shenyu command inspects the resolved dependency graph declared in your project's POM files; it does not perform automated security scanning or inspect runtime dynamic classpaths. Always verify runtime container classpaths and shaded JARs.

Technical Details

Vulnerability Mechanism & Technical Analysis

This vulnerability is classified under CWE-1333: Inefficient Regular Expression Complexity, where the product uses a regular expression with a worst-case computational complexity that is inefficient and possibly exponential. In Shenyu, software state validation or input boundaries are circumvented during processing. Review the official source advisory statement below for specific affected components, classes, and reproduction details.

Source Advisory Statement

In Apache ShenYui, ShenYu-Bootstrap, RegexPredicateJudge.java uses Pattern.matches(conditionData.getParamValue(), realData) to make judgments, where both parameters are controllable by the user. This can cause an attacker pass in malicious regular expressions and characters causing a resource exhaustion. This issue affects Apache ShenYu (incubating) 2.4.0, 2.4.1 and 2.4.2 and is fixed in 2.4.3.

CVE-2022-26650 Affected Shenyu Versions

2 component(s)
Fixed Versions:
2.4.3
Product / Package Ecosystem Affected Versions Fixed Version
org.apache.shenyu:shenyu
maven/org.apache.shenyu/shenyu
Maven
≥ 2.4.0
< 2.4.3
2.4.3
org.apache.shenyu:shenyu-bootstrap
maven/org.apache.shenyu/shenyu-bootstrap
Maven
≥ 2.4.0
< 2.4.3
2.4.3

References

NVD — CVE-2022-26650 NVD
https://nvd.nist.gov/vuln/detail/CVE-2022-26650
Shenyu Source Repository REPOSITORY
https://github.com/apache/incubator-shenyu
lists.apache.org/thread/8rp33m3nm4bw... WEB
https://lists.apache.org/thread/8rp33m3nm4bwtx3qx76mqynth3t3d673
Shenyu Security Information SECURITY
http://www.openwall.com/lists/oss-security/2022/05/17/3

Frequently Asked Questions

What is CVE-2022-26650?
CVE-2022-26650 is a security vulnerability in Shenyu involving Regular expression denial of service in Apache ShenYu under CWE-1333: Inefficient Regular Expression Complexity.
Which Shenyu versions are affected?
Affected versions include releases prior to 2.4.3 across affected packages: org.apache.shenyu:shenyu, org.apache.shenyu:shenyu-bootstrap.
What version fixes CVE-2022-26650?
Upgrading to 2.4.3 (or the latest patched release for your respective branch) resolves the vulnerability.
Is shenyu affected?
Yes, org.apache.shenyu:shenyu is affected in releases prior to 2.4.3. Upgrade your dependency to 2.4.3 or later.
Is shenyu-bootstrap affected?
Yes, org.apache.shenyu:shenyu-bootstrap is affected in releases prior to 2.4.3. Upgrade your dependency to 2.4.3 or later.
What is the CVSS score of CVE-2022-26650?
CVE-2022-26650 has a CVSS v3.1 base score of 7.5 (HIGH) with vector string CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H.
What CWE is associated with CVE-2022-26650?
CVE-2022-26650 is classified under CWE-1333: Inefficient Regular Expression Complexity (The product uses a regular expression with a worst-case computational complexity that is inefficient and possibly exponential.).
How can I check Maven dependencies for CVE-2022-26650?
Run the dependency tree command: 'mvn dependency:tree -Dincludes=org.apache.shenyu'. This command lists direct and transitive dependencies in your build configuration so you can verify if a vulnerable version is resolved.
Machine-readable OSV JSON OSV v1.5 Schema
Normalized schema output
View Raw JSON 
{
  "schema_version" : "1.4.0",
  "id" : "GHSA-cw56-j3fm-7w57",
  "modified" : "2023-07-11T16:35:32Z",
  "published" : "2022-05-18T00:00:47Z",
  "aliases" : [ "CVE-2022-26650" ],
  "summary" : "Regular expression denial of service in Apache ShenYu",
  "details" : "In Apache ShenYui, ShenYu-Bootstrap, RegexPredicateJudge.java uses Pattern.matches(conditionData.getParamValue(), realData) to make judgments, where both parameters are controllable by the user. This can cause an attacker pass in malicious regular expressions and characters causing a resource exhaustion. This issue affects Apache ShenYu (incubating) 2.4.0, 2.4.1 and 2.4.2 and is fixed in 2.4.3.",
  "severity" : [ {
    "type" : "CVSS_V3",
    "score" : "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H"
  } ],
  "affected" : [ {
    "package" : {
      "ecosystem" : "Maven",
      "name" : "org.apache.shenyu:shenyu"
    },
    "ranges" : [ {
      "type" : "ECOSYSTEM",
      "events" : [ {
        "introduced" : "2.4.0"
      }, {
        "fixed" : "2.4.3"
      } ]
    } ]
  }, {
    "package" : {
      "ecosystem" : "Maven",
      "name" : "org.apache.shenyu:shenyu-bootstrap"
    },
    "ranges" : [ {
      "type" : "ECOSYSTEM",
      "events" : [ {
        "introduced" : "2.4.0"
      }, {
        "fixed" : "2.4.3"
      } ]
    } ]
  } ],
  "references" : [ {
    "type" : "ADVISORY",
    "url" : "https://nvd.nist.gov/vuln/detail/CVE-2022-26650"
  }, {
    "type" : "PACKAGE",
    "url" : "https://github.com/apache/incubator-shenyu"
  }, {
    "type" : "WEB",
    "url" : "https://lists.apache.org/thread/8rp33m3nm4bwtx3qx76mqynth3t3d673"
  }, {
    "type" : "WEB",
    "url" : "http://www.openwall.com/lists/oss-security/2022/05/17/3"
  } ],
  "database_specific" : {
    "cwe_ids" : [ "CWE-1333", "CWE-862" ],
    "severity" : "HIGH",
    "github_reviewed" : true,
    "github_reviewed_at" : "2022-05-25T19:36:33Z",
    "nvd_published_at" : "2022-05-17T08:15:00Z"
  }
}