Vulnerability · Published Nov 4, 2026 · Assigned by Sonatype

CVE-2026-113369Nexus Repository 3 - Stored Cross-Site Scripting in OCI Attestations Tab

Medium 6.3

In plain English

A medium-severity cross-site scripting in Nexus Repository 3 from Sonatype. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.2% (higher than 16% of all known vulnerabilities).

Severity (CVSS 4.0)6.3Medium

Exploit odds (30 days)0.2%top 84.4% of all CVEs

Exploited in the wildNo reportsnot in CISA KEV

Attack toolingNoneno public tooling known

Official description

Sonatype Nexus Repository 3 allows a user account that can push manifests to a hosted OCI repository (a user account that holds the edit permission on that repository) to store script content in the artifact type field of an OCI manifest. The script runs in the browser of a user who opens the Attestations tab for the related image in the Browse user interface, with the permissions of the viewing user.

Affected products (as reported)

Vendor	Product	Versions
Sonatype	Nexus Repository 3	3.94.0 – before 3.98.0

Weakness: CWE-79 · Vector: CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:P/VC:N/VI:N/VA:N/SC:H/SI:H/SA:N

In plain English

Official description

Affected products (as reported)

References