CVE-2026-34758

moderate-risk
Published 2026-04-02

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.

Do I need to act?

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0.04% chance of exploitation
EPSS score — low exploit probability
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Not on CISA KEV list
No confirmed active exploitation reported to CISA
?
Patch status unknown
Check vendor advisories for fix availability and mitigation guidance
9
CVSS 9.1/10 Critical
NETWORK / LOW complexity

Affected Products (1)

Affected Vendors

Hackerbay

References (4)

Patch https://github.com/OneUptime/oneuptime/commit/9adbd04538714740506708d6fa610e433b...
Release Notes https://github.com/OneUptime/oneuptime/releases/tag/10.0.42
Exploit https://github.com/OneUptime/oneuptime/security/advisories/GHSA-q253-6wcm-h8hp
Exploit https://github.com/OneUptime/oneuptime/security/advisories/GHSA-q253-6wcm-h8hp
36
/ 100
moderate-risk
Severity 31/34 · Critical
Exploitability 0/34 · Minimal
Exposure 5/34 · Minimal