Vulnerability · Published Sep 2, 2026 · Assigned by Sonatype

CVE-2026-77123Nexus Repository 3 - Webhook Secret Disclosure via Capability Read API

Medium 6.0

In plain English

A medium-severity security flaw 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 0.5% (higher than 40% of all known vulnerabilities).

Severity (CVSS 4.0)6.0Medium

Exploit odds (30 days)0.5%top 60.4% of all CVEs

Exploited in the wildNo reportsCISA SSVC: none

Attack toolingNoneno public tooling known

Official description

Nexus Repository 3 contains a sensitive information disclosure vulnerability in the capability read API. An account holding the nexus:capabilities:read privilege can retrieve the plaintext shared secret configured on a webhook capability, which is intended to be masked from all API responses. This issue affects Nexus Repository 3 versions 3.2.0 through 3.95.x, and is fixed in version 3.96.0.

Affected products (as reported)

Vendor	Product	Versions
Sonatype	Nexus Repository 3	3.2.0 – before 3.96.0

Weakness: CWE-201 · Vector: CVSS:4.0/AV:N/AC:L/AT:P/PR:L/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N

In plain English

Official description

Affected products (as reported)

References