CVE-2025-66027

Rallly Information Disclosure Vulnerability in Participant API Leaks Names and Emails Despite Pro Privacy Settings

State: Published
Severity: 7.1 High
Published: Nov 29, 2025
Updated: Dec 1, 2025
Reserved: Nov 21, 2025

Description

Rallly is an open-source scheduling and collaboration tool. Prior to version 4.5.6, an information disclosure vulnerability exposes participant details, including names and email addresses through the /api/trpc/polls.get,polls.participants.list endpoint, even when Pro privacy features are enabled. This bypasses intended privacy controls that should prevent participants from viewing other users’ personal information. This issue has been patched in version 4.5.6.

Scores

CVSS	Score	Vector	Source
4.0	7.1 High	CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:N/VA:N/SC:L/SI:N/SA:N	GitHub_M

Weaknesses

CWE-200 Exposure of Sensitive Information to an Unauthorized Actor
CWE-284 Improper Access Control
CWE-359 Exposure of Private Personal Information to an Unauthorized Actor

Affected Products

Product	Versions
ralllylukevella	< 4.5.6Affected

References

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