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Unauthorized access to a user account with known email and username

Critical
s3inlc published GHSA-g82f-3w53-p6x5 Feb 20, 2026

Package

Hashtopolis

Affected versions

<= 0.14.6, <= 1.0.0-rainbow4

Patched versions

0.14.7, 1.0.0-rainbow5

Description

Impact

A critical vulnerability was identified that allows a remote, unauthenticated attacker to fully compromise an account. To compromise an account a valid username and email address combination is required.

Patches

Release version 0.14.7 fixes this issue. In the pre-releases, the fix is included from version 1.0.0-rainbow5 on.

Because of the low complexity of this vulnerability, it is strongly advised to apply the available patch immediately.

Severity

Critical

CVSS overall score

This score calculates overall vulnerability severity from 0 to 10 and is based on the Common Vulnerability Scoring System (CVSS).
/ 10

CVSS v3 base metrics

Attack vector
Network
Attack complexity
Low
Privileges required
None
User interaction
None
Scope
Unchanged
Confidentiality
High
Integrity
High
Availability
Low

CVSS v3 base metrics

Attack vector: More severe the more the remote (logically and physically) an attacker can be in order to exploit the vulnerability.
Attack complexity: More severe for the least complex attacks.
Privileges required: More severe if no privileges are required.
User interaction: More severe when no user interaction is required.
Scope: More severe when a scope change occurs, e.g. one vulnerable component impacts resources in components beyond its security scope.
Confidentiality: More severe when loss of data confidentiality is highest, measuring the level of data access available to an unauthorized user.
Integrity: More severe when loss of data integrity is the highest, measuring the consequence of data modification possible by an unauthorized user.
Availability: More severe when the loss of impacted component availability is highest.
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:L

CVE ID

No known CVE

Weaknesses

No CWEs

Credits