CVE-2026-7494 Sonatype CVE debrief

Who should care

Defenders and administrators of Nexus Repository 3 instances should assess their exposure and take necessary actions to mitigate the vulnerability. This includes verifying the version of Nexus Repository 3, reviewing user permissions, and ensuring that only authorized users have the nexus:ssl-truststore:read permission. Additionally, defenders should monitor network connections and logs for suspicious outbound requests that could indicate exploitation.

Why it matters

This SSRF vulnerability in Nexus Repository 3 allows users with specific permissions to initiate outbound connections to internal or restricted network hosts, potentially leading to unauthorized access or data breaches. Defenders should verify their exposure, assess the impact, and consider patching or mitigating the vulnerability.

• Potential unauthorized network connections
• Possible data breaches or system compromise
• Need for version verification and patching
• Importance of monitoring network activity for suspicious requests

Technical summary

The vulnerability exists in the SSL Certificate Retrieval endpoint of Nexus Repository 3, allowing users with specific permissions to cause the server to make outbound connections to internal or restricted hosts. This issue affects Nexus Repository 3.0.0 through versions prior to 3.94.0. A user holding the nexus:ssl-truststore:read permission could cause the server to initiate outbound connections to internal or otherwise restricted network hosts, potentially leading to unauthorized access or data breaches. Defenders should verify their exposure, assess the impact, and consider patching or mitigating the vulnerability.

Defensive priority

Defenders should prioritize verifying exposure and assessing the impact of this vulnerability on their systems, especially those with Nexus Repository 3 deployments.

Recommended defensive actions

• Verify Nexus Repository 3 version and check if it falls within the affected range (3.0.0 to before 3.94.0).
• Review user permissions and ensure that only authorized users have the nexus:ssl-truststore:read permission.
• Monitor network connections and logs for suspicious outbound requests that could indicate exploitation attempts.
• Consider upgrading to Nexus Repository 3.94.0 or later to patch the vulnerability.
• Review compensating controls for exposed systems while remediation is scheduled and verified.
• Check relevant monitoring, detection, and logs for exposed assets that need extra review.
• Track exceptions, retest remediated assets, and close the item only after evidence is documented.

Evidence notes

The CVE record and NVD entry provide details on the vulnerability, including its description, CVSS score, and affected versions. However, specific details about exploitation or victim impact are not provided.

Sources and references

Methodology and review provenance

AI-assisted synthesis based on stored public vulnerability evidence. System validation, approval state, and publication status do not by themselves establish human review of this revision. PatchSiren helps prioritize defensive review and does not prove exposure or remediation on any system.