CVE-2026-126797

critical

NextScan 1.1.0 through 1.2.0 contains an authentication bypass vulnerability in ns-admin that allows unauthenticated attackers to forge administrator tokens us…

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.

CVSS

9.8

9.8 (CVSS v3.1)

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Severity source: NVD CVSS v3.1 (disclosure@vulncheck.com)

Timeline (UTC)

Published: 2026-11-11 21:16

Modified: 2026-11-11 21:16

NVD status: Received

Last synced 5 hours ago

Verified against the source API 2026-11-11 21:41 UTC

Exploitation

Not listed in CISA KEV (as of last catalog sync)

Absence from KEV does not mean a CVE is not exploited. Exploitation status: unknown (no authoritative evidence in our sources).

Affected products

Not reported by the source (unknown — not "none").

Weakness classification (CWE)

CWE-321

Source: NVD / CISA. “NVD-CWE-Other” and “NVD-CWE-noinfo” mean NVD could not assign a specific weakness.

Mitigation & advisories

No vendor advisory or patch reference tagged by NVD. Check the references below.

References

https://github.com/tongcheng-security-team/NextScan/blob/v1.2.0/docker/docker-compose.yaml disclosure@vulncheck.com
https://github.com/tongcheng-security-team/NextScan/issues/48 disclosure@vulncheck.com
https://hub.docker.com/r/lysec/ns-admin disclosure@vulncheck.com
https://vul.yulun.ac.cn/20261107/nextscan/ disclosure@vulncheck.com
https://www.vulncheck.com/advisories/nextscan-1.1.0-through-1.2.0-hardcoded-jwt-key-authen... disclosure@vulncheck.com

Data sources

NVD CVE API 2.0 — fetched 2026-11-11 21:41 UTC · record ↗

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