CVE-2026-34758

CRITICAL EPSS 26.7%
Published Apr 2, 20262mo ago · Modified Jun 17, 20261w ago
9.1 CVSS 3.1
Critical
Find Similar
Published Apr 2, 2026 2mo ago
Last Modified Jun 17, 2026 1w ago

Description

OneUptime is an open-source monitoring and observability platform. Prior to version 10.0.42, unauthenticated access to Notification test and Phone Number management endpoints allows SMS/Call/Email/WhatsApp abuse and phone number purchase. This issue has been patched in version 10.0.42.

CVSS Details

Base Score
9.1
Exploitability
3.9
Impact
5.2
Vector string
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N
Attack Vector Network
Attack Complexity Low
Privileges Required None
User Interaction None
Scope Unchanged
Confidentiality High
Integrity High
Availability None

Threat Intelligence

EPSS Exploit Probability
26.7% percentile
Exploit & Patch Status
Public Exploit Known
Patch Available

Weaknesses 1

CWE-306 Missing Authentication for Critical Function Authentication

Affected Products 1

VendorProductVersionRange
hackerbayoneuptime* <10.0.40

References 3

  • github.com https://github.com/OneUptime/oneuptime/commit/9adbd04538714740506708d6fa610e433be4d2a4
    Patch
  • github.com https://github.com/OneUptime/oneuptime/releases/tag/10.0.42
    Release Notes
  • github.com https://github.com/OneUptime/oneuptime/security/advisories/GHSA-q253-6wcm-h8hp
    ExploitMitigationVendor Advisory

Remediation

  • github.com https://github.com/OneUptime/oneuptime/commit/9adbd04538714740506708d6fa610e433be4d2a4
    Patch