CVE-2026-77122: medium-severity vulnerability in Sonatype Nexus Repository 3
Nexus Repository 3 - Incorrect Authorization Allows Disclosure of Member Repository Metadata via Group Repository Permissions
Published
E-mail alert when it lands in KEV, gets a public PoC or its score goes up.
13Vexday Risk Score
No sign of exploitation. No public exploitation artifact known so far.
ssvc Trackcvss 5.3epss 0.3%
An authorization flaw in the REST API repository details endpoint (GET /service/rest/v1/repositories/{repositoryName}) in Sonatype Nexus Repository 3 allowed an account holding read or browse permission on a group repository to retrieve metadata for member repositories on which it held no direct permission, by requesting the endpoint directly for the member repository name. For proxy repositories, the disclosed metadata includes the configured remote URL, which may reveal internal upstream hostnames. This includes the anonymous user if it has been granted this permission; whether the anonymous user holds this permission depends on the role and permission configuration of the specific installation.
CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N
Affected products
Sonatype · Nexus Repository 3Related CVEs — Sonatype Nexus Repository 3
In the same product, most dangerous first.
CVE-2026-17594HIGHNexus Repository 3 - Authorization Bypass in Repository CreationEPSS 1.0%CVE-2026-17603HIGHNexus Repository 3 - HikariCP connectionInitSql Injection RCE via DataStore Configuration APIEPSS 0.9%CVE-2026-77124HIGHNexus Repository 3 - Script Execution Disable Setting Not EnforcedEPSS 0.7%CVE-2026-97666MEDIUMNexus Repository 3 - Unsafe Reflection in ExtDirect Repository EndpointEPSS 0.6%CVE-2026-14644HIGHNexus Repository 3 - Privilege EscalationEPSS 0.6%CVE-2026-17601HIGHNexus Repository 3 - Wildcard Privilege Update Self-Escalation to AdministratorEPSS 0.5%