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

Severity: high (CVSS 7.5 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 0.5% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2026-07-14 · updated 2026-10-24
Weakness: CWE-331

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

Sonatype Nexus Repository 3: from 3.0.0 before 3.93.0 — fixed in 3.93.0

How to fix

Upgrade to a fixed version: Sonatype Nexus Repository 3 3.93.0. Check the vendor advisory for mitigations.

References

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