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Vulnerability record · CVE-2026-34758 · published 2 April 2026

CVE-2026-34758: Hackerbay oneuptime missing authentication for critical function vulnerability

Hackerbay · Oneuptime

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.

9.1 CVSS 3.1 Critical EPSS 0.50% · top 60.0% CWE-306 · Missing authentication for critical function
9.1CVSS 3.1 base score
0.50%EPSS exploitation probability, 30 days
NoNot in CISA KEV
1Affected product versions listed by NVD
4References, 2 tagged exploit
24 Jul 2026Last modified by NVD

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:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N

Affected products

1 vulnerable configurations from NVD's CPE data, grouped by vendor and product.

References

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

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Related vulnerabilities

Same products first, then exploited flaws of the same weakness class.

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Source: NIST National Vulnerability Database (record CVE-2026-34758), CISA KEV, FIRST EPSS (scores of 2026-09-26). This page is refreshed as NVD updates the record.