CVE-2026-63101: open-event-server 0 through 1.19.1

CVE-2026-63101. CVSS 3.1 base score 7.5 (HIGH, Vendor/CNA). EPSS 0.0052 (percentile 0.43386), scored 24-Oct-2026.

Affected technology

open-event-server · 0 through 1.19.1
fossasia

Description’s affected range: through 1.19.1

Component: Not specified by the source

Attack conditions (Vendor/CNA, CVSS 4.0): Network (remote) · No privileges required · No user interaction required

What an attacker can do

Unauthenticated attackers can export the complete member roster of any group, including email addresses, names, join dates, and roles, by submitting requests to the group followers CSV export endpoint which lacks any authentication decorator. Vendor/CNA’s CVSS 4.0 assessment (base score 8.7/10) rates confidentiality impact as high; integrity and availability impact as none.

Published 25-Oct-2026 01:30 UTC

CWE: CWE-306
CCR priority: 30.1 /100 (P4)
CVSS 3.1: 7.5 /10 · CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N · Vendor/CNA
EPSS: 0.0052 · percentile 0.43386 · 2026-10-24
KEV: no

Provenance

NVD CVE API 2.0 · Source record · observed 2026-10-25 01:28:19.133527+00:00 UTC

Stable permalink: https://cybercodered.org/item/cve-cve-2026-63101.html