NextScan 1.1.0 through 1.2.0 contains an authentication bypass vulnerability in ns-admin that allows unauthenticated attackers to forge administrator tokens using a hardcoded JWT signing key. Attackers can sign an HS256 X-Access-Token carrying the public super administrator role ID to gain full access to user management, scan tasks and stored vulnerability results.

Attack Vector Network

Attack Complexity Low

Privileges Required None

Attack Requirements None

User Interaction None

Vulnerable System Confidentiality Impact High

Vulnerable System Integrity Impact High

Vulnerable System Availability Impact High

Subsequent System Confidentiality Impact None

Subsequent System Integrity Impact None

Subsequent System Availability Impact None

Attack Vector Network

Attack Complexity Low

Privileges Required None

Scope Unchanged

Confidentiality Impact High

Integrity Impact High

Availability Impact High

User Interaction None

No CVSS v3.0

No CVSS v2

This CVE is not in the KEV list.

The EPSS score is 0.00615.

Key SSVC decision points have not yet been added.

Default status is the baseline for the product, each version can override it (e.g. patched versions marked unaffected).

Vendor Product Default status Versions
tongcheng-security-team NextScan unaffected
Version Status Constraints
1.1.0 affected ≤ 1.2.0

No data.

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Project Subscriptions

No data.

Advisories

No advisories yet.

Fixes

Solution

No solution given by the vendor.

Workaround

No workaround given by the vendor.

References
Link Providers
https://github.com/tongcheng-security-team/NextScan/blob/v1.2.0/docker/docker-compose.yaml cve-icon cve-icon
https://github.com/tongcheng-security-team/NextScan/issues/48 cve-icon cve-icon
https://hub.docker.com/r/lysec/ns-admin cve-icon cve-icon
https://vul.yulun.ac.cn/20261107/nextscan/ cve-icon cve-icon
https://www.vulncheck.com/advisories/nextscan-1.1.0-through-1.2.0-hardcoded-jwt-key-authentication-bypass-in-ns-admin cve-icon cve-icon
History

Wed, 11 Nov 2026 21:15:00 +0000

Type Values Removed Values Added
Description NextScan 1.1.0 through 1.2.0 contains an authentication bypass vulnerability in ns-admin that allows unauthenticated attackers to forge administrator tokens using a hardcoded JWT signing key. Attackers can sign an HS256 X-Access-Token carrying the public super administrator role ID to gain full access to user management, scan tasks and stored vulnerability results.
Title NextScan 1.1.0 through 1.2.0 Hardcoded JWT Key Authentication Bypass in ns-admin
Weaknesses CWE-321
References
Metrics cvssV3_1

{'score': 9.8, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H'}

cvssV4_0

{'score': 9.3, 'vector': 'CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N'}

Projects

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cve-icon MITRE

Status: PUBLISHED

Assigner: VulnCheck

Published:

Updated: 2026-11-11T20:53:02.665Z

Reserved: 2026-11-11T20:01:46.748Z

Link: CVE-2026-126797

cve-icon Vulnrichment

No data.

cve-icon NVD

Status : Received

Published: 2026-11-11T21:16:43.027

Modified: 2026-11-11T21:16:43.027

Link: CVE-2026-126797

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

Updated: 2026-11-12T18:15:04Z

Weaknesses