tongcheng-security-team NextScan up to 1.2.0 AuthAgent /agent/config hard-coded credentials

Summaryinfo

A vulnerability, which was classified as critical, has been found in tongcheng-security-team NextScan up to 1.2.0. The impacted element is an unknown function of the file /agent/config of the component AuthAgent. This manipulation causes hard-coded credentials. This vulnerability appears as CVE-2026-126802. The attack may be initiated remotely. There is no available exploit.

Detailsinfo

A vulnerability was found in tongcheng-security-team NextScan up to 1.2.0. It has been declared as critical. Affected by this vulnerability is an unknown functionality of the file /agent/config of the component AuthAgent. The manipulation with an unknown input leads to a hard-coded credentials vulnerability. The CWE definition for the vulnerability is CWE-798. The product contains hard-coded credentials, such as a password or cryptographic key. As an impact it is known to affect confidentiality, integrity, and availability. The summary by CVE is:

NextScan 1.1.0 through 1.2.0 contains hardcoded HTTP Basic Auth credentials in ns-admin's AuthAgent and AuthExternal routers that allow unauthenticated attackers to access protected APIs. Attackers can call /agent/config to obtain Redis passwords, etcd details and the server token, and impersonate scan nodes via registration, heartbeat and logging endpoints.

It is possible to read the advisory at github.com. This vulnerability is known as CVE-2026-126802 since 11/11/2026. The exploitation appears to be easy. The attack can be launched remotely. The exploitation doesn't need any form of authentication. Technical details of the vulnerability are known, but there is no available exploit. The pricing for an exploit might be around USD $0-$5k at the moment (estimation calculated on 11/11/2026). The attack technique deployed by this issue is T1110.001 according to MITRE ATT&CK.

There is no information about possible countermeasures known. It may be suggested to replace the affected object with an alternative product.

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Productinfo

Vendor

• tongcheng-security-team

Name

• NextScan

Version

• 1.0
• 1.1
• 1.2.0

Website

• Product: https://github.com/tongcheng-security-team/NextScan/

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