Pre-Account Hijacking Vulnerability in Lagarto Chivato by Grayback
CVE-2026-126815

8.1HIGH

Key Information:

Vendor

Xauendevs

Status
Lagarto Chivato
Vendor
CVE Published:
11 November 2026

What is CVE-2026-126815?

A security flaw exists in Lagarto Chivato versions 0.4.1 and earlier that can be exploited by remote unauthenticated attackers. This issue allows them to take control of accounts by planting a malicious password associated with unregistered email addresses. When a victim performs their first passwordless login, the attacker's planted credentials are utilized, compromising the victim's account.

Affected Version(s)

Lagarto Chivato 0.1.0 <= 0.4.2

Lagarto Chivato 0.4.4

References

https://www.grayback.es/advisories
patch
https://www.grayback.es/en/advisories
patch

CVSS V3.1

Score:
8.1
Severity:
HIGH
Confidentiality:
High
Integrity:
High
Availability:
High
Attack Vector:
Network
Attack Complexity:
Low
Privileges Required:
None
User Interaction:
Required
Scope:
Unchanged

Timeline

  • Vulnerability published

  • Vulnerability Reserved

Credit

Daniel Hidalgo (hidalg0d)
.