Insertion of Sensitive Information Into Sent Data in Nexus Repository Manager - CVE-2026-77123
Published: September 7, 2026
Vulnerability identifier: #VU147240
CSH Severity: Low
CVSS v4: 7.1 [CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N]
CVE-ID: CVE-2026-77123
CWE-ID: CWE-201
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vulnerability details
The vulnerability allows a remote user to disclose a webhook shared secret.
The vulnerability exists due to insertion of sensitive information into sent data in the capability read API when handling capability read requests. A remote user can query the API to retrieve a plaintext shared secret configured on a webhook capability.
Exploitation requires the nexus:capabilities:read privilege and a webhook capability configured with a shared secret.
Affected software
Nexus Repository Manager
How to mitigate CVE-2026-77123
Install security update from vendor's website.
Nexus Repository Manager - update to 3.96.0-09