Nexus Repository 3 contained an endpoint used to change the administrator account password during initial onboarding. (CVE-2026-17599)
Nexus Repository 3 includes an endpoint intended for changing the administrator password during initial onboarding. This endpoint does not verify that onboarding is still in progress and relies only on the presence of a local onboarding artifact. Consequently, any account with the nexus:* permission can invoke this endpoint outside the onboarding process to change the administrator password. Additionally, existing sessions are not invalidated after the password change, potentially allowing continued access with old credentials.
AI Analysis
Technical Summary
CVE-2026-17599 describes a vulnerability in Nexus Repository 3 where an endpoint used to change the administrator password during initial onboarding lacks proper verification that onboarding is active. Instead, it relies on a local onboarding artifact's presence. This flaw allows an attacker with nexus:* permissions to change the administrator password outside the intended onboarding flow. The vulnerability also fails to invalidate existing sessions after the password change, which could allow continued unauthorized access.
Potential Impact
An attacker with nexus:* permissions can change the administrator password at any time, not just during onboarding, potentially gaining full administrative control. Since existing sessions are not invalidated, attackers or legitimate users with active sessions may retain access even after the password change, increasing the risk of unauthorized persistent access.
Mitigation Recommendations
Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. Until a fix is available, restrict nexus:* permissions to trusted users only and monitor for unauthorized use of the password change endpoint. Consider manual invalidation of sessions after password changes if possible.
Nexus Repository 3 contained an endpoint used to change the administrator account password during initial onboarding. (CVE-2026-17599)
Description
Nexus Repository 3 includes an endpoint intended for changing the administrator password during initial onboarding. This endpoint does not verify that onboarding is still in progress and relies only on the presence of a local onboarding artifact. Consequently, any account with the nexus:* permission can invoke this endpoint outside the onboarding process to change the administrator password. Additionally, existing sessions are not invalidated after the password change, potentially allowing continued access with old credentials.
CVSS v4.0
Weaknesses
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
CVE-2026-17599 describes a vulnerability in Nexus Repository 3 where an endpoint used to change the administrator password during initial onboarding lacks proper verification that onboarding is active. Instead, it relies on a local onboarding artifact's presence. This flaw allows an attacker with nexus:* permissions to change the administrator password outside the intended onboarding flow. The vulnerability also fails to invalidate existing sessions after the password change, which could allow continued unauthorized access.
Potential Impact
An attacker with nexus:* permissions can change the administrator password at any time, not just during onboarding, potentially gaining full administrative control. Since existing sessions are not invalidated, attackers or legitimate users with active sessions may retain access even after the password change, increasing the risk of unauthorized persistent access.
Mitigation Recommendations
Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. Until a fix is available, restrict nexus:* permissions to trusted users only and monitor for unauthorized use of the password change endpoint. Consider manual invalidation of sessions after password changes if possible.
Technical Details
- Gcve Source
- db.gcve.eu
- Osv Id
- GHSA-jffj-qrgg-8qm5
- Osv Schema Version
- 1.4.0
- Aliases
- ["CVE-2026-17599"]
- Ecosystems
- []
- Database Specific Severity
- MODERATE
- Cvss Version
- 4.0
Threat ID: 6a77433fbf8831d539b4780e
Added to database: 08/08/2026, 14:54:55 UTC
Last enriched: 08/08/2026, 14:57:36 UTC
Last updated: 08/09/2026, 03:40:59 UTC
Views: 7
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