CVE-2016-0789: Jenkins core Jenkins Has CRLF Injection Vulnerability Vulnerability

MODERATE
Advisory Identifier: GHSA-8p3c-m625-wh83
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CVSS 6.1
CWE-113 CWE-20
Published
Advisory Summary

CVE-2016-0789 is a MODERATE (CVSS 6.1) jenkins has crlf injection vulnerability vulnerability (CWE-113: Improper Neutralization of CRLF Sequences in HTTP Headers ('HTTP Request/Response Splitting')) affecting Jenkins core libraries in the Maven ecosystem. The issue involves jenkins has crlf injection vulnerability in the cli. Remediation is available by upgrading affected packages to version 1.650, 1.642.2.

CVE-2016-0789 at a Glance

CVE Identifier CVE-2016-0789
GHSA Identifier GHSA-8p3c-m625-wh83
Severity MODERATE
CVSS v3.1 Base Score 6.1
CWE Classification CWE-113: Improper Neutralization of CRLF Sequences in HTTP Headers ('HTTP Request/Response Splitting')
Affected Product Jenkins core
Package Ecosystem Maven
Published Date
Last Updated

Security Impact

CVSS: 6.1

The security impact metrics below are parsed directly from the CVSS v3.1 vector string (CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N).

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

How to Fix CVE-2016-0789

To remediate this vulnerability, upgrade all affected Jenkins core 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.jenkins-ci.main:jenkins-core fixed: 1.650 
<dependency>
    <groupId>org.jenkins-ci.main</groupId>
    <artifactId>jenkins-core</artifactId>
    <version>1.650</version>
</dependency>
org.jenkins-ci.main:jenkins-core fixed: 1.642.2 
<dependency>
    <groupId>org.jenkins-ci.main</groupId>
    <artifactId>jenkins-core</artifactId>
    <version>1.642.2</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.jenkins-ci.main

How to Check if You Are Affected

To determine whether your Java application is affected by CVE-2016-0789, inspect your build dependencies using the Maven Dependency Plugin:

mvn dependency:tree -Dincludes=org.jenkins-ci.main

Analyze the terminal output to locate any version of Jenkins core in your dependency tree. If any resolved version matches the vulnerable ranges listed in the table below (for example, versions earlier than 1.650), your application is affected.

Note: The mvn dependency:tree -Dincludes=org.jenkins-ci.main 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-113: Improper Neutralization of CRLF Sequences in HTTP Headers ('HTTP Request/Response Splitting'), where the product receives data from an http agent/component (e.g., web server, proxy, browser, etc.), but it does not neutralize or incorrectly neutralizes cr and lf characters before the data is included in outgoing http headers. In Jenkins core, 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

CRLF injection vulnerability in the CLI command documentation in Jenkins before 1.650 and LTS before 1.642.2 allows remote attackers to inject arbitrary HTTP headers and conduct HTTP response splitting attacks via unspecified vectors.

CVE-2016-0789 Affected Jenkins core Versions

2 component(s)
Fixed Versions:
1.6501.642.2
Product / Package Ecosystem Affected Versions Fixed Version
org.jenkins-ci.main:jenkins-core
maven/org.jenkins-ci.main/jenkins-core
Maven
≥ 1.643
< 1.650
1.650
org.jenkins-ci.main:jenkins-core
maven/org.jenkins-ci.main/jenkins-core
Maven
< 1.642.2
1.642.2

References

NVD — CVE-2016-0789 NVD
https://nvd.nist.gov/vuln/detail/CVE-2016-0789
Security Fix Commit FIX COMMIT
https://github.com/jenkinsci/jenkins/commit/f5c51fbad2b62b81dc1e0402aeee058a4a478046
access.redhat.com/errata/rhsa-2016:07... WEB
https://access.redhat.com/errata/RHSA-2016:0711
Jenkins core Source Repository REPOSITORY
https://github.com/jenkinsci/jenkins
Jenkins core Security Information SECURITY
https://wiki.jenkins-ci.org/display/SECURITY/Jenkins+Security+Advisory+2016-02-24
rhn.redhat.com/errata/rhsa-2016-17... WEB
http://rhn.redhat.com/errata/RHSA-2016-1773.html

Frequently Asked Questions

What is CVE-2016-0789?
CVE-2016-0789 is a security vulnerability in Jenkins core involving Jenkins has CRLF Injection Vulnerability in the CLI under CWE-113: Improper Neutralization of CRLF Sequences in HTTP Headers ('HTTP Request/Response Splitting').
Which Jenkins core versions are affected?
Affected versions include releases prior to 1.650, 1.642.2 across affected packages: org.jenkins-ci.main:jenkins-core.
What version fixes CVE-2016-0789?
Upgrading to 1.650, 1.642.2 (or the latest patched release for your respective branch) resolves the vulnerability.
Is jenkins-core affected?
Yes, org.jenkins-ci.main:jenkins-core is affected in releases prior to 1.650, 1.642.2. Upgrade your dependency to 1.650, 1.642.2 or later.
What is the CVSS score of CVE-2016-0789?
CVE-2016-0789 has a CVSS v3.1 base score of 6.1 (MODERATE) with vector string CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N.
What CWE is associated with CVE-2016-0789?
CVE-2016-0789 is classified under CWE-113: Improper Neutralization of CRLF Sequences in HTTP Headers ('HTTP Request/Response Splitting') (The product receives data from an HTTP agent/component (e.g., web server, proxy, browser, etc.), but it does not neutralize or incorrectly neutralizes CR and LF characters before the data is included in outgoing HTTP headers.).
How can I check Maven dependencies for CVE-2016-0789?
Run the dependency tree command: 'mvn dependency:tree -Dincludes=org.jenkins-ci.main'. 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-8p3c-m625-wh83",
  "modified" : "2025-03-13T19:03:59Z",
  "published" : "2022-05-14T03:58:16Z",
  "aliases" : [ "CVE-2016-0789" ],
  "summary" : "Jenkins has CRLF Injection Vulnerability in the CLI",
  "details" : "CRLF injection vulnerability in the CLI command documentation in Jenkins before 1.650 and LTS before 1.642.2 allows remote attackers to inject arbitrary HTTP headers and conduct HTTP response splitting attacks via unspecified vectors.",
  "severity" : [ {
    "type" : "CVSS_V3",
    "score" : "CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N"
  } ],
  "affected" : [ {
    "package" : {
      "ecosystem" : "Maven",
      "name" : "org.jenkins-ci.main:jenkins-core"
    },
    "ranges" : [ {
      "type" : "ECOSYSTEM",
      "events" : [ {
        "introduced" : "1.643"
      }, {
        "fixed" : "1.650"
      } ]
    } ]
  }, {
    "package" : {
      "ecosystem" : "Maven",
      "name" : "org.jenkins-ci.main:jenkins-core"
    },
    "ranges" : [ {
      "type" : "ECOSYSTEM",
      "events" : [ {
        "introduced" : "0"
      }, {
        "fixed" : "1.642.2"
      } ]
    } ]
  } ],
  "references" : [ {
    "type" : "ADVISORY",
    "url" : "https://nvd.nist.gov/vuln/detail/CVE-2016-0789"
  }, {
    "type" : "WEB",
    "url" : "https://github.com/jenkinsci/jenkins/commit/f5c51fbad2b62b81dc1e0402aeee058a4a478046"
  }, {
    "type" : "WEB",
    "url" : "https://access.redhat.com/errata/RHSA-2016:0711"
  }, {
    "type" : "PACKAGE",
    "url" : "https://github.com/jenkinsci/jenkins"
  }, {
    "type" : "WEB",
    "url" : "https://wiki.jenkins-ci.org/display/SECURITY/Jenkins+Security+Advisory+2016-02-24"
  }, {
    "type" : "WEB",
    "url" : "http://rhn.redhat.com/errata/RHSA-2016-1773.html"
  } ],
  "database_specific" : {
    "cwe_ids" : [ "CWE-113", "CWE-20" ],
    "severity" : "MODERATE",
    "github_reviewed" : true,
    "github_reviewed_at" : "2025-03-13T19:03:59Z",
    "nvd_published_at" : "2016-04-07T23:59:00Z"
  }
}