CVE-2026-126815
Pre-account hijacking via planted password
Pre-account hijacking in the authentication flow in Lagarto Chivato 0.4.1 and earlier on Web allows remote unauthenticated attackers to take over arbitrary accounts via a password planted on an unregistered email address that becomes valid upon the victim’s first passwordless login.
Fixes and workarounds
Fix
The reporting source identifies this reference as a patch. Check the advisory for affected versions and supported release branches.
Source: CNA: GraybackFix
The reporting source identifies this reference as a patch. Check the advisory for affected versions and supported release branches.
Source: CNA: GraybackAffected products and versions
| Product | Versions | Authority |
|---|---|---|
| Lagarto Chivato XauenDevs |
≥ 0.1.0; ≤ 0.4.2 (affected, custom) 0.4.4 (unaffected) Other versions: unaffected |
CNA: Grayback |
Version ranges are source assertions. Check the vendor advisory and your installed configuration before determining exposure.
CVSS assessments
| Version / score | Vector | Authority |
|---|---|---|
| 3.1 / 8.1 high |
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:N | CNA: Grayback |
Exploit evidence
No exploit evidence in collected sources. This is not proof of no exploitation.
References
- https://www.grayback.es/advisoriesCNA: Grayback · patch
- https://www.grayback.es/en/advisoriesCNA: Grayback · patch
For agents and automation
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