Vulnerability · Published Jul 14, 2026 · Assigned by Sonatype

CVE-2026-11403Nexus Repository Manager - Insufficient Entropy in Format-Specific API Key Generation

High 8.7

In plain English

A high-severity security flaw in Nexus Repository Manager 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 45% of all known vulnerabilities).

Severity (CVSS 4.0)8.7High

Exploit odds (30 days)0.5%top 55.3% of all CVEs

Exploited in the wildNo reportsCISA SSVC: none

Attack toolingNoneno public tooling known

Official description

A vulnerability in Sonatype Nexus Repository Manager's format-specific API key generation may allow a remote attacker to gain unauthorized access to repository operations as a targeted user. A format-specific API key realm (NuGet API Key, Docker Bearer Token, or npm Bearer Token) must be enabled and the targeted user must have an active API key for this vulnerability to be exploitable.

Affected products (as reported)

Vendor	Product	Versions
Sonatype	Nexus Repository Manager	3.0.0 – before 3.93.0

Weakness: CWE-331 · Vector: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N

In plain English

Official description

Affected products (as reported)

References