CVE-2026-72691: opensignserver 0 through 2.37.0

CVE-2026-72691. CVSS 3.1 base score 7.5 (HIGH, Source advisory). EPSS 0.00647 (percentile 0.50355), scored 22-Oct-2026.

Affected technology

opensignserver · 0 through 2.37.0
OpenSignLabs

Description’s affected range: through 2.37.0

Component: Not specified by the source
Function: skips

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

What an attacker can do

An unauthenticated remote attacker can mint MASTER_KEY-signed file access tokens for arbitrary stored files via the getsignedurl Parse cloud function. Source advisory’s CVSS 3.1 assessment (base score 7.5/10) rates confidentiality impact as high; integrity and availability impact as none.

Published 24-Oct-2026 01:43 UTC

CWE: CWE-288
CCR priority: 30.2 /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 · Source advisory
EPSS: 0.00647 · percentile 0.50355 · 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-2026-72691.html