# CVE-2026-57307: Jenkins Zowe zDevOps Plugin missing permission check in connection endpoint

Source: https://junglewise.ai/threats/cve-2026-57307-jenkins-zowe-zdevops-plugin-missing-permission-check-in  
Publisher: Junglewise Threat Intelligence, https://junglewise.ai/threats  
Published: 2026-06-24. Updated: 2026-06-24  
License: CC BY 4.0 with a link back

CVE-2026-57307 · Severity: medium · CVSS 4.2 · Published 2026-06-24

The Jenkins Zowe zDevOps plugin, which integrates Jenkins with Zowe mainframe services, contains a security flaw where it fails to verify user permissions for certain actions. This allows an authorized Jenkins user to trick the system into connecting to a malicious server using existing credentials stored in Jenkins. An attacker could use this to steal sensitive login information or service credentials, potentially compromising connected mainframe systems.

Vendors: [Jenkins Project](https://junglewise.ai/threats/vendors/jenkins-project), [Maven](https://junglewise.ai/threats/vendors/maven).

## Quick answers

**Is CVE-2026-57307 exploited in the wild?** No. Junglewise Threat Intelligence has no report of CVE-2026-57307 being exploited in the wild.

**How severe is CVE-2026-57307?** Medium severity, with a CVSS score of 4.2, published 24 June 2026.

**Which products and versions are affected?** Jenkins Project Zowe zDevOps Plugin 1.1.3.50.ve350c9b_450b_1 and earlier; io.jenkins.plugins:zdevops (Maven) <= 1.1.3.50.ve350c9b, ECOSYSTEM:introduced=0,last_affected=1.1.3.50.ve350c9b.

**Is there a fix for CVE-2026-57307?** No fixed version is recorded yet. Check the vendor's advisory in the references below. If you run it, Junglewise drafts a mitigation that fits your setup and applies it once you approve, with senior security engineers behind it.

**How is CVE-2026-57307 attacked?** It is attacked over the network, in a software library.

**Am I affected by CVE-2026-57307?** Check whether you run Jenkins Project Zowe zDevOps Plugin or io.jenkins.plugins:zdevops (Maven) at an affected version. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.

## Technical details

A missing permission check in Jenkins Zowe zDevOps Plugin version 1.1.3.50.ve350c9b_450b_1 and earlier allows attackers with Overall/Read permission to trigger an outbound connection to an arbitrary URL. By specifying a malicious endpoint and a known credential ID (obtained through other means), the attacker can cause the plugin to transmit Jenkins-stored credentials to the external server. This is a classic credential capture vulnerability resulting from improper authorization on a diagnostic or connection-testing endpoint. As of the advisory date, users should check for updates to the Zowe zDevOps Plugin.

## Affected products

- Jenkins Project Zowe zDevOps Plugin 1.1.3.50.ve350c9b_450b_1 and earlier

## Identifiers

- CVE-2026-57307
- GHSA-xx59-jv36-5r44

## Timeline

- 2026-06-24: disclosed
- 2026-06-24: advisory

## References

- [https://www.jenkins.io/security/advisory/2026-06-24/](https://www.jenkins.io/security/advisory/2026-06-24/)

## Related threats

- [Jenkins Zowe zDevOps Plugin CSRF in credential connection endpoint](https://junglewise.ai/threats/cve-2026-57306-jenkins-zowe-zdevops-plugin-csrf-in-credential-connection)