Sonatype Nexus Repository 3 allows a user account that can push manifests to a hosted OCI repository (a user account
Source GCVE Database
Not known to be exploited · CVSS 6.3 Medium : upgrade to 3.98.0 when convenient.
Data as of 4 Nov 2026, 22:53 UTC
Thin evidence
One scorer or none| CNA (Sonatype) | CVSS 4.0 | 6.3 |
|---|
- Patch
- Available – fixed in 3.98.0
CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:P/VC:N/VI:N/VA:N/SC:H/SI:H/SA:NExploitation evidence
Disclosed: evidence found.
CVE published 4 Nov 2026
Detectable: no evidence on record.
No public nuclei template indexed
Weaponized: no evidence on record.
No public exploit code indexed in Metasploit or Exploit-DB
Exploited in the wildExploited: no evidence on record.
Not in CISA KEV and no source reports exploitation
Observed by OffSeq MirageSeen by 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 4 Nov 2026.
What to do
Upgrade Nexus Repository 3 to 3.98.0.
Affected software
| Product | Affected | Fixed in |
|---|---|---|
| SonatypeNexus Repository 3 | Affected
| Fixed in
|
AI-suggested
Since the vulnerability requires a user with edit permissions to inject malicious content, restricting edit permissions to trusted users can reduce risk. Users should exercise caution when viewing the Attestations tab for OCI images from untrusted sources. Monitor vendor advisories for any forthcoming patches or official remediation guidance.
Description
A vulnerability in Sonatype Nexus Repository 3 allows a user with edit permissions on a hosted OCI repository to inject script content into the artifact type field of an OCI manifest. This script executes in the browser of any user who views the Attestations tab for the related image in the Browse UI, running with the permissions of the viewing user. This cross-site scripting (XSS) vulnerability can lead to unauthorized script execution in the context of the Nexus Repository web interface.