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TI-2026-41240 Aliases CVE-2026-57303GHSA-2q27-6p2h-q6r3

Server-side request forgery in Jenkins Assembla Plugin

Priority LOW 31CWE-918Published · Updated

Key facts

Attack vector
Network
Privileges required
Low
User interaction
None
Attack complexity
Low
Impact type
—
Confidentiality · integrity · availability
High · Low · None
Fix status
No fix listed

Attack profile from CVSS 3.1 · CISA ADP. Fix status from CNA and GitHub.

Summary

Jenkins Assembla Plugin 1.4 and earlier does not configure its XML parser to prevent XML external entity (XXE) attacks, allowing attackers able to control the responses of the configured Assembla server to extract secrets from the Jenkins controller or perform server-side request forgery.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.00359 29th percentileScored 2026-11-07
Fix No fix listed No fixed version in the sources yet

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation
None
Automatable
No
Technical impact
Partial

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

VendorProductAffected versionsFixed inStatusSource
JenkinsJenkins Assembla Pluginup to 1.4—No fix listedCNA
—org.jenkins-ci.plugins:assembla (Maven)up to 1.4—No fix listedGHSA-2q27-6p2h-q6r3
  • Jenkins Assembla Plugin VendorJenkins Affected up to 1.4 Fixed in — No fix listed CNA
  • org.jenkins-ci.plugins:assembla (Maven) Vendor— Affected up to 1.4 Fixed in — No fix listed GHSA-2q27-6p2h-q6r3

CPE configurations NVD · 1

CPEVersionsRoleVendor
cpe:2.3:a:jenkins:assembla:*:*:*:*:*:jenkins:*:*up to 1.4VulnerableJenkins
  • cpe:2.3:a:jenkins:assembla:*:*:*:*:*:jenkins:*:* Versions up to 1.4 Vulnerable ·Jenkins

Remediation

No fixed version listed by the sources yet.

Fixed in the same release

Records fixed by the same vendor advisory or release, as the CNA lists them.

  • Advisory ·

    Jenkins Assembla Plugin — Jenkins Security Advisory 2026-06-24

    3 records Highest priority Priority LOW 3 LOW

    Other records, highest priority first

    • TI-2026-41242 Cross-site request forgery in Jenkins Assembla PluginPriority LOW 24
    • TI-2026-41241 Missing authorization in Jenkins Assembla PluginPriority LOW 24
    Show all 3 records → Advisory →

Timeline

  1. 2026-10-02 Threatist record created from CVE-2026-57303
  2. 2026-10-03 Alias added: GHSA-2q27-6p2h-q6r3

References

Advisory 2

Other 1

  • TI-2023-19393 Cross-site request forgery in Jenkins Assembla Auth Plugin CVSS 3.1HIGH 8.8
  • TI-2019-07729 Insufficiently protected credentials in Jenkins Assembla Plugin CVSS 3.1MEDIUM 5.5
  • TI-2026-41242 Cross-site request forgery in Jenkins Assembla Plugin CVSS 3.1MEDIUM 5.4
  • TI-2026-41241 Missing authorization in Jenkins Assembla Plugin CVSS 3.1MEDIUM 5.4

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences