CVE-2026-48923: Jenkinsci appspider plugin Jenkins AppSpider Plugin Does Not Vulnerability

MODERATE
Advisory Identifier: GHSA-9wm7-8qf3-9v98
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CVSS 4.3
CWE-269
Published
Advisory Summary

CVE-2026-48923 is a MODERATE (CVSS 4.3) jenkins appspider plugin does not vulnerability (CWE-269: Improper Privilege Management) affecting Jenkinsci appspider plugin libraries in the Maven ecosystem. The issue involves jenkins appspider plugin does not perform a permission check in a method implementing form validation. Remediation is available by upgrading affected packages to version 1.0.18.

CVE-2026-48923 at a Glance

CVE Identifier CVE-2026-48923
GHSA Identifier GHSA-9wm7-8qf3-9v98
Severity MODERATE
CVSS v3.1 Base Score 4.3
CWE Classification CWE-269: Improper Privilege Management
Affected Product Jenkinsci appspider plugin
Package Ecosystem Maven
Published Date
Last Updated

Security Impact

CVSS: 4.3

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

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

How to Fix CVE-2026-48923

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

com.rapid7:jenkinsci-appspider-plugin fixed: 1.0.18 
<dependency>
    <groupId>com.rapid7</groupId>
    <artifactId>jenkinsci-appspider-plugin</artifactId>
    <version>1.0.18</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=com.rapid7

How to Check if You Are Affected

To determine whether your Java application is affected by CVE-2026-48923, inspect your build dependencies using the Maven Dependency Plugin:

mvn dependency:tree -Dincludes=com.rapid7

Analyze the terminal output to locate any version of Jenkinsci appspider plugin in your dependency tree. If any resolved version matches the vulnerable ranges listed in the table below (for example, versions earlier than 1.0.18), your application is affected.

Note: The mvn dependency:tree -Dincludes=com.rapid7 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-269: Improper Privilege Management, where the product does not properly assign, modify, track, or check privileges for an actor, creating an unintended sphere of control for that actor. In Jenkinsci appspider plugin, 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

Jenkins AppSpider Plugin 1.0.17 and earlier does not perform a permission check in a method implementing form validation. This allows attackers with Overall/Read permission to connect to an attacker-specified URL. AppSpider Plugin 1.0.18 requires Overall/Administer permission to use the affected method implementing form validation.

CVE-2026-48923 Affected Jenkinsci appspider plugin Versions

1 component(s)
Fixed Versions:
1.0.18
Product / Package Ecosystem Affected Versions Fixed Version
com.rapid7:jenkinsci-appspider-plugin
maven/com.rapid7/jenkinsci-appspider-plugin
Maven
< 1.0.18
1.0.18

References

NVD — CVE-2026-48923 NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-48923
Jenkinsci appspider plugin Source Repository REPOSITORY
https://github.com/rapid7/jenkinsci-appspider-plugin
Jenkinsci appspider plugin Security Information SECURITY
https://www.jenkins.io/security/advisory/2026-05-27/#SECURITY-3671

Frequently Asked Questions

What is CVE-2026-48923?
CVE-2026-48923 is a security vulnerability in Jenkinsci appspider plugin involving Jenkins AppSpider Plugin does not perform a permission check in a method implementing form validation under CWE-269: Improper Privilege Management.
Which Jenkinsci appspider plugin versions are affected?
Affected versions include releases prior to 1.0.18 across affected packages: com.rapid7:jenkinsci-appspider-plugin.
What version fixes CVE-2026-48923?
Upgrading to 1.0.18 (or the latest patched release for your respective branch) resolves the vulnerability.
Is jenkinsci-appspider-plugin affected?
Yes, com.rapid7:jenkinsci-appspider-plugin is affected in releases prior to 1.0.18. Upgrade your dependency to 1.0.18 or later.
What is the CVSS score of CVE-2026-48923?
CVE-2026-48923 has a CVSS v3.1 base score of 4.3 (MODERATE) with vector string CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N.
What CWE is associated with CVE-2026-48923?
CVE-2026-48923 is classified under CWE-269: Improper Privilege Management (The product does not properly assign, modify, track, or check privileges for an actor, creating an unintended sphere of control for that actor.).
How can I check Maven dependencies for CVE-2026-48923?
Run the dependency tree command: 'mvn dependency:tree -Dincludes=com.rapid7'. 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-9wm7-8qf3-9v98",
  "modified" : "2026-07-01T19:43:17Z",
  "published" : "2026-05-27T15:33:27Z",
  "aliases" : [ "CVE-2026-48923" ],
  "summary" : "Jenkins AppSpider Plugin does not perform a permission check in a method implementing form validation",
  "details" : "Jenkins AppSpider Plugin 1.0.17 and earlier does not perform a permission check in a method implementing form validation.\n\nThis allows attackers with Overall/Read permission to connect to an attacker-specified URL.\n\nAppSpider Plugin 1.0.18 requires Overall/Administer permission to use the affected method implementing form validation.",
  "severity" : [ {
    "type" : "CVSS_V3",
    "score" : "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N"
  } ],
  "affected" : [ {
    "package" : {
      "ecosystem" : "Maven",
      "name" : "com.rapid7:jenkinsci-appspider-plugin"
    },
    "ranges" : [ {
      "type" : "ECOSYSTEM",
      "events" : [ {
        "introduced" : "0"
      }, {
        "fixed" : "1.0.18"
      } ]
    } ],
    "database_specific" : {
      "last_known_affected_version_range" : "<= 1.0.17"
    }
  } ],
  "references" : [ {
    "type" : "ADVISORY",
    "url" : "https://nvd.nist.gov/vuln/detail/CVE-2026-48923"
  }, {
    "type" : "PACKAGE",
    "url" : "https://github.com/rapid7/jenkinsci-appspider-plugin"
  }, {
    "type" : "WEB",
    "url" : "https://www.jenkins.io/security/advisory/2026-05-27/#SECURITY-3671"
  } ],
  "database_specific" : {
    "cwe_ids" : [ "CWE-269" ],
    "severity" : "MODERATE",
    "github_reviewed" : true,
    "github_reviewed_at" : "2026-07-01T19:43:17Z",
    "nvd_published_at" : "2026-05-27T15:16:31Z"
  }
}