Vulnerability-Lookup

CVE-2026-86206 (GCVE-0-2026-86206)

Vulnerability from cvelistv5 – Published: 2026-09-05 19:17 – Updated: 2026-09-08 10:35

Previdian

Title

Access control filter bypass allows unauthorised access to APIs

Summary

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

Severity

6.9 (Medium)


                        
                          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

SSVC

Exploitation: none Automatable: yes Technical Impact: partial

CISA Coordinator · CISA-ADP (v2.0.3)

Decision recorded 2026-09-08 10:29 UTC

CWE

CWE-791 - Incomplete filtering of special elements

Assigner

N-able mitre root

References

2 references

URL	Tags
https://documentation.n-able.com/N-central/Releas…	release-notes
https://me.n-able.com/s/security-advisory/aArVy00…	vendor-advisory

Impacted products

1 product

Vendor	Product	Version	CPE status
N-able	N-central	Affected: 0 , < 2026.3.1.13 (custom)	guessed

Date Public

2026-09-05 19:16

Credits

Michael Tigges of Huntress Stephen Fewer, Senior Principal Researcher, Rapid7

Previdian

Known Exploited Vulnerability - GCVE BCP-07 Compliant

KEV entry ID: ac041c27-50bd-43dd-ad90-377593198745

Vulnerability ID: CVE-2026-86206

Status: Confirmed

Status Updated: 2026-09-10 06:32 UTC

Exploited: Yes

Timestamps

First Seen: 2026-09-10

Asserted: 2026-09-10

Scope

Evidence

Type: Public Report

Signal: Successful Exploitation

Confidence: 70%

Source: previdian

Details

Feed	Previdian (previdian.com)
Title	Access control filter bypass allows unauthorised access to APIs
Cve Id	CVE-2026-86206
Vendor	N-able
Ghsa Id	None
Product	N-central
Added Date	2026-09-10T06:32:55.151Z
Cvss Score	6.9
Epss Score	0.00676
Previous Ids
Cvss Severity	MEDIUM
Virtual Patch	False
Cvss Estimated	False
Epss Percentile	0.50174
Used In Malware	unknown
Vulnerability Id	CVE-2026-86206
Ahead Of Cisa Kev	None
Not Yet In Cisa Kev	True

References

Created: 2026-09-11 07:00 UTC | Updated: 2026-09-11 07:00 UTC

Show details on NVD website

JSON

To clipboard

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FKIE_CVE-2026-86206

Vulnerability from fkie_nvd - Published: 2026-09-05 20:17 - Updated: 2026-09-08 19:16

Previdian

Severity

6.9 (Medium) - 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

Summary

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

References

	URL	Tags
	a5532a13-c4dd-4202-bef1-e0b8f2f8d12b	https://documentation.n-able.com/N-central/Release_Notes/GA/Content/N-central_2026.3_HF3_Release_Notes.htm
	a5532a13-c4dd-4202-bef1-e0b8f2f8d12b	https://me.n-able.com/s/security-advisory/aArVy0000002LTNKA2/cve202686206-access-control-filter-bypass-allows-unauthorised-access-to-apis

Impacted products

	Vendor	Product	Version

JSON

To clipboard

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    {
      "source": "a5532a13-c4dd-4202-bef1-e0b8f2f8d12b",
      "url": "https://documentation.n-able.com/N-central/Release_Notes/GA/Content/N-central_2026.3_HF3_Release_Notes.htm"
    },
    {
      "source": "a5532a13-c4dd-4202-bef1-e0b8f2f8d12b",
      "url": "https://me.n-able.com/s/security-advisory/aArVy0000002LTNKA2/cve202686206-access-control-filter-bypass-allows-unauthorised-access-to-apis"
    }
  ],
  "sourceIdentifier": "a5532a13-c4dd-4202-bef1-e0b8f2f8d12b",
  "vulnStatus": "Awaiting Analysis",
  "weaknesses": [
    {
      "description": [
        {
          "lang": "en",
          "value": "CWE-791"
        }
      ],
      "source": "a5532a13-c4dd-4202-bef1-e0b8f2f8d12b",
      "type": "Secondary"
    }
  ]
}

GHSA-9X6X-W4XQ-RW3G

Vulnerability from github – Published: 2026-09-05 21:31 – Updated: 2026-09-05 21:31

Details

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

Severity

6.9 (Medium)


                  
                    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

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{
  "affected": [],
  "aliases": [
    "CVE-2026-86206"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-791"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2026-09-05T20:17:18Z",
    "severity": "MODERATE"
  },
  "details": "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",
  "id": "GHSA-9x6x-w4xq-rw3g",
  "modified": "2026-09-05T21:31:20Z",
  "published": "2026-09-05T21:31:20Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-86206"
    },
    {
      "type": "WEB",
      "url": "https://documentation.n-able.com/N-central/Release_Notes/GA/Content/N-central_2026.3_HF3_Release_Notes.htm"
    },
    {
      "type": "WEB",
      "url": "https://me.n-able.com/s/security-advisory/aArVy0000002LTNKA2/cve202686206-access-control-filter-bypass-allows-unauthorised-access-to-apis"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "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/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X",
      "type": "CVSS_V4"
    }
  ]
}

WID-SEC-W-2026-3205

Vulnerability from csaf_certbund - Published: 2026-09-06 22:00 - Updated: 2026-09-08 22:00

Summary

N-able N-Central: Mehrere Schwachstellen ermöglichen Offenlegung von Informationen

Severity

Kritisch

Scope

3 vulnerabilities in this advisory, including CVE-2026-86206.

CVE-2026-86206

Known affected: 1 product

Open the full advisory

Sightings

Author	Source	Type	Date	Other

Nomenclature

Seen: The vulnerability was mentioned, discussed, or observed by the user.
Confirmed: The vulnerability has been validated from an analyst's perspective.
Published Proof of Concept: A public proof of concept is available for this vulnerability.
Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
Not confirmed: The user expressed doubt about the validity of the vulnerability.
Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.

The MITRE ATT&CK techniques below are AI-generated suggestions, inferred from the description of the vulnerability by the CIRCL/vulnerability-attack-technique-classification-roberta-base model, served locally by ML-Gateway. They have not been verified by an analyst and are provided for guidance only.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
Browse all ATT&CK techniques and the vulnerabilities related to each.

Related by attack behaviour

Vulnerabilities whose description is nearest to this one in the vector space of the CIRCL/vulnerability-attack-technique-biencoder model. This is a similarity search over the bi-encoder space (plain cosine), not a classification, and it has no measured accuracy.

Action not permitted

CVE-2026-86206 (GCVE-0-2026-86206)

Previdian

Known Exploited Vulnerability - GCVE BCP-07 Compliant

Timestamps

Scope

Evidence

Public Report Successful Exploitation Confidence: 70% Source: previdian

Details

References

FKIE_CVE-2026-86206

GHSA-9X6X-W4XQ-RW3G

WID-SEC-W-2026-3205

Tags

Sightings

Nomenclature

Related by attack behaviour