CVE-2026-34758CRITICAL 9.1EPSS p26.5%

CVE-2026-34758CVE-2026-34758

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.

Scoring

CVSS 3.19.1 (CRITICAL)
VectorCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N
EPSS0.35% probability of exploitation · percentile 26.5% · 2026-06-19T12:03:05Z
Published2026-04-02
Last modified2026-04-03

Underlying weaknesses· 1

CWE-306

References

  1. https://github.com/OneUptime/oneuptime/commit/9adbd04538714740506708d6fa610e433be4d2a4
  2. https://github.com/OneUptime/oneuptime/releases/tag/10.0.42
  3. https://github.com/OneUptime/oneuptime/security/advisories/GHSA-q253-6wcm-h8hp
  4. https://github.com/OneUptime/oneuptime/security/advisories/GHSA-q253-6wcm-h8hp

1

TypeTargetConfidenceTier
WeaknessMissing Authentication for Critical Functioncwe-3060%live

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Sourced from NVD + FIRST.org EPSS. Curated for EU compliance use cases by Adam Lundqvist, Founder at SQUR.