CVE-2026-14646: CWE-918 Server-Side Request Forgery (SSRF) in Sonatype Nexus Repository 3
CVE-2026-14646 is a Server-Side Request Forgery (SSRF) vulnerability in Sonatype Nexus Repository 3 version 3.0.0. The product failed to apply SSRF protections to HTTP redirect targets from proxy repository upstream servers. This allows any user with read access to a proxy repository, including anonymous users if enabled, to receive responses from internal network addresses or cloud metadata endpoints as repository content. This could potentially expose sensitive information such as cloud IAM credentials. The vulnerability has a medium severity with a CVSS score of 4.9.
AI Analysis
Technical Summary
Sonatype Nexus Repository 3 version 3.0.0 contains a Server-Side Request Forgery (SSRF) vulnerability (CWE-918) because it does not apply existing SSRF protections to HTTP redirect targets returned by proxy repository upstream servers. An attacker controlling or compromising an upstream server can cause users with read access to receive responses from internal network addresses or cloud metadata endpoints, potentially exposing sensitive data like cloud IAM credentials. This affects users with read access, including anonymous users if anonymous access is enabled. There is no official remediation or patch currently documented.
Potential Impact
An attacker controlling or compromising an upstream proxy server can exploit this SSRF vulnerability to cause the Nexus Repository 3 server to fetch and return data from internal network resources or cloud metadata endpoints. This can lead to exposure of sensitive information such as cloud IAM credentials. The vulnerability affects users with read access to the proxy repository, including anonymous users if anonymous access is enabled, increasing the risk of unauthorized information disclosure.
Mitigation Recommendations
Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. Until an official fix is available, consider restricting read access to proxy repositories, disabling anonymous access if enabled, and carefully controlling upstream proxy repository sources to trusted servers only.
CVE-2026-14646: CWE-918 Server-Side Request Forgery (SSRF) in Sonatype Nexus Repository 3
Description
CVE-2026-14646 is a Server-Side Request Forgery (SSRF) vulnerability in Sonatype Nexus Repository 3 version 3.0.0. The product failed to apply SSRF protections to HTTP redirect targets from proxy repository upstream servers. This allows any user with read access to a proxy repository, including anonymous users if enabled, to receive responses from internal network addresses or cloud metadata endpoints as repository content. This could potentially expose sensitive information such as cloud IAM credentials. The vulnerability has a medium severity with a CVSS score of 4.9.
CVSS v4.0
Score 4.9medium
Affected software
cpe:2.3:a:sonatype:nexus_repository_manager:3.0.0:*:*:*:*:*:*:*cpe:2.3:a:sonatype:nexus_repository_manager:3.0.1:*:*:*:*:*:*:*cpe:2.3:a:sonatype:nexus_repository_manager:3.0.2:*:*:*:*:*:*:*cpe:2.3:a:sonatype:nexus_repository_manager:3.1.0:*:*:*:*:*:*:*cpe:2.3:a:sonatype:nexus_repository_manager:3.2.0:*:*:*:*:*:*:*cpe:2.3:a:sonatype:nexus_repository_manager:3.2.1:*:*:*:*:*:*:*Weaknesses
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
Sonatype Nexus Repository 3 version 3.0.0 contains a Server-Side Request Forgery (SSRF) vulnerability (CWE-918) because it does not apply existing SSRF protections to HTTP redirect targets returned by proxy repository upstream servers. An attacker controlling or compromising an upstream server can cause users with read access to receive responses from internal network addresses or cloud metadata endpoints, potentially exposing sensitive data like cloud IAM credentials. This affects users with read access, including anonymous users if anonymous access is enabled. There is no official remediation or patch currently documented.
Potential Impact
An attacker controlling or compromising an upstream proxy server can exploit this SSRF vulnerability to cause the Nexus Repository 3 server to fetch and return data from internal network resources or cloud metadata endpoints. This can lead to exposure of sensitive information such as cloud IAM credentials. The vulnerability affects users with read access to the proxy repository, including anonymous users if anonymous access is enabled, increasing the risk of unauthorized information disclosure.
Mitigation Recommendations
Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. Until an official fix is available, consider restricting read access to proxy repositories, disabling anonymous access if enabled, and carefully controlling upstream proxy repository sources to trusted servers only.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- Sonatype
- Date Reserved
- 2026-07-03T18:06:29.314Z
- Cvss Version
- 4.0
- State
- PUBLISHED
- Remediation Level
- null
Threat ID: 6a566f6568715ace43e6b26f
Added to database: 07/14/2026, 17:18:29 UTC
Last enriched: 07/15/2026, 02:18:11 UTC
Last updated: 07/15/2026, 02:18:11 UTC
Views: 3
Community Reviews
0 reviewsCrowdsource mitigation strategies, share intel context, and vote on the most helpful responses. Sign in to add your voice and help keep defenders ahead.
Want to contribute mitigation steps or threat intel context? Sign in or create an account to join the community discussion.
Actions
Updates to AI analysis require Pro Console access. Upgrade inside Console → Billing.
Need more coverage?
Upgrade to Pro Console for AI refresh and higher limits.
For incident response and remediation, OffSeq services can help resolve threats faster.
Latest Threats
Check if your credentials are on the dark web
Instant breach scanning across billions of leaked records. Free tier available.