CVE-2026-72549: OpenSign 0 through 2.37.0

CVE-2026-72549. CVSS 3.1 base score 5.3 (MEDIUM, Source advisory). EPSS 0.00479 (percentile 0.40404), scored 22-Oct-2026.

Affected technology

OpenSign · 0 through 2.37.0
OpenSignLabs

Description’s affected range: through 2.37.0

Component: Not specified by the source
Function: performs

Attack conditions (Source advisory, CVSS 3.1): Network (remote) · No privileges required · No user interaction required

What an attacker can do

Unauthenticated remote attackers can map any email address or username to its internal user objectId via the getUserId Parse cloud function. Source advisory’s CVSS 3.1 assessment (base score 5.3/10) rates confidentiality impact as low; integrity and availability impact as none.

Published 24-Oct-2026 01:44 UTC

CWE: CWE-200
CCR priority: 21.3 /100 (P4)
CVSS 3.1: 5.3 /10 · CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N · Source advisory
EPSS: 0.00479 · percentile 0.40404 · 2026-10-22
KEV: no

Provenance

NVD CVE API 2.0 · Source record · observed 2026-10-24 01:40:49.068977+00:00 UTC

Stable permalink: https://cybercodered.org/item/cve-cve-2026-72549.html