CVE-2026-72691

7.5 Élevée

Publiée le 10/08/2026 à 15:20 · Modifiée le 24/10/2026 à 17:10 · Analyse NVD reportée · Source : 309f9ea4-e3e9-4c6c-b79d-e8eb01244f2c

Description

An authentication bypass vulnerability in OpenSignLabs opensignserver through 2.37.0 allows an unauthenticated remote attacker to mint MASTER_KEY-signed file access tokens for arbitrary stored files via the getsignedurl Parse cloud function. The function skips its isAuthenticated check whenever any docId parameter is supplied, even one corresponding to no real document, allowing the authentication gate to be bypassed by supplying an arbitrary string as docId.

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Produits concernés

OpenSignLabs opensignserver

Scores CVSS

Version	Score	Source	Vecteur
3.1	7.5 Élevée	309f9ea4-e3e9-4c6c-b79d-e8eb01244f2c	`CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N`

Faiblesses (CWE)

CWE-288

Références

https://github.com/OpenSignLabs/OpenSign

Ailleurs

NVD
CVE.org
CIRCL Vulnerability-Lookup
CERT-FR
GitHub Advisories