CVE-2026-72544

OpenSignLabs OpenSign - Insufficient Verification of Data Authenticity

State
Published
Severity
7.5 High
Published
Aug 11, 2026
Updated
Aug 11, 2026
Reserved
Aug 10, 2026

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Description

An integrity verification vulnerability in OpenSignLabs OpenSign through 2.37.0 allows unauthenticated remote attackers to forge document audit-trail entries via the triggerevent Parse cloud function. The function accepts viewer identity and IP address as caller-supplied parameters without authentication, allowing fabrication of arbitrary audit log entries. An attacker can tamper with the legal audit trail of any signed document, undermining non-repudiation.

Scores

CVSSScoreVectorSource
3.17.5 HighCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:NTuranSec

Weaknesses

  • CWE-345 Insufficient Verification of Data Authenticity

Affected Products

ProductVersions
OpenSignOpenSignLabs
  • 2.37.0 and earlierAffected

References

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