Vulnerability · Published Nov 4, 2026 · Assigned by VulDB

CVE-2026-1220196amTech 6valley Social Login Flow existing-account-check existingAccountCheck authorization

High 7.3

In plain English

A high-severity authorization bypass via user-controlled key in 6valley from 6amTech. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.3% (higher than 22% of all known vulnerabilities).

Severity (CVSS 3.1)7.3High

Exploit odds (30 days)0.3%top 78.1% of all CVEs

Exploited in the wildNo reportsnot in CISA KEV

Attack toolingNoneno public tooling known

Official description

A vulnerability was identified in 6amTech 6valley 16.0. Impacted is the function existingAccountCheck of the file /api/v1/auth/existing-account-check of the component Social Login Flow. Such manipulation of the argument user_response leads to authorization bypass. The attack may be launched remotely. The exploit is publicly available and might be used.

Affected products (as reported)

Vendor	Product	Versions
6amTech	6valley	16.0

Weakness: CWE-639, CWE-285 · Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L/E:P/RL:X/RC:C

References

VDB-431085 | 6amTech 6valley Social Login Flow existing-account-check existingAccountCheck authorization vdb-entry, technical-description
VDB-431085 | CTI Indicators (IOB, IOC, IOA) signature, permissions-required
CVE-2026-122019 | CVE Analysis and Report third-party-advisory
Submit #1024992 | 6amTech 6valley 16.0 Authorization Bypass third-party-advisory
https://github.com/oscar2744/CVE-Submit/issues/3 exploit, issue-tracking