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CVE-2026-0600VulnerabilityPublished

CVE-2026-0600: Sonatype Nexus Repository · Server-Side Request Forgery (SSRF)

Affects Sonatype Nexus RepositorySource CVE Database V5

0

Not known to be exploited · CVSS 6.2 Medium.

Data as of 26 Oct 2026, 07:57 UTC

CVSS 4.0 base score
6.2Medium
How severe the flaw is on the 0–10 CVSS scale.
EPSS
0.3% chance of exploitation in 30 days – higher than 23% of CVEsExploit Prediction Scoring System: the likelihood attackers will use this flaw soon.
CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:N/VC:N/VI:N/VA:N/SC:H/SI:L/SA:N

Exploitation evidence

  1. Disclosed: evidence found.

    CVE published 14 Jan 2026

  2. Detectable: no evidence on record.

    No public nuclei template indexed

  3. Weaponised: no evidence on record.

    No public exploit code indexed in Metasploit or Exploit-DB

  4. Exploited in the wild: no evidence on record.

    Not in CISA KEV and no source reports exploitation

  5. Observed by OffSeq Mirage: no evidence on record.

    No attack traffic recorded by OffSeq Mirage sensors

A missing step is not evidence of safety. Sources: cve.org (opens in a new tab), the Metasploit, Exploit-DB and nuclei-templates index as of 2026-10-26.

What to do

Affected software

ProductAffectedFixed in
SonatypeNexus RepositoryAffected
  • >=3.0.0
Fixed in–
Mavenorg.sonatype.nexus/nexus-repositorypkg:maven/org.sonatype.nexus/nexus-repositoryOther threatsAffected
  • =3.0.0
Fixed in–

CPE configurations (144)

  • 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:*:*:*:*:*:*:*

Check your own hosts for these packages with threat-finder (opens in a new tab), our free open-source scanner.

AI-suggested

1. Upgrade Nexus Repository to version 3.88.0 or later where the workaround configuration is available to restrict proxy repository URLs and prevent SSRF exploitation. 2. Implement strict validation and whitelisting of URLs used in proxy repository configurations to ensure only trusted destinations are accessible. 3. Enforce the principle of least privilege by limiting administrator access to Nexus Repository and regularly auditing administrative accounts and activities. 4. Segment the network to isolate Nexus Repository servers from sensitive internal resources and cloud metadata endpoints, reducing the attack surface. 5. Monitor Nexus Repository logs for unusual proxy repository configurations or access patterns indicative of SSRF attempts. 6. Employ multi-factor authentication (MFA) for administrative access to reduce the risk of credential compromise. 7. Conduct regular security assessments and penetration testing focused on SSRF and related vulnerabilities within development infrastructure. 8. Educate administrators about the risks of SSRF and the importance of secure configuration management.

Description

Server-Side Request Forgery (SSRF) vulnerability in Sonatype Nexus Repository 3 versions 3.0.0 and later allows authenticated administrators to configure proxy repositories with URLs that can access unintended network destinations, potentially including cloud metadata services and internal network resources. A workaround configuration is available starting in version 3.88.0, but the product remains vulnerable by default.

References

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