by Kastro
Paper/Archive/CVE-2026-34758

CVE-2026-34758

OneUptime oneuptime — OneUptime: Missing Authentication on Notification Endpoints

EPSS 0.4%public exploitCVSS 9.1
critical.is priorityof 100
43
CVSS 9.1 (CNA)9.1 / 10 × 3027.3Not in CISA KEV+300.0EPSS percentile 29.1.291 × 205.8Exploit: SSVC poc+1010.0SSVC exploitation: poc+100.0
Description · from the CVE record

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.

Affected

ProductAffectedFixed inSource
oneuptime< 10.0.42–CNA

Scores by source

GitHub_M (CNA)9.1CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N
CISA ADPSSVCExploitation: poc · Automatable: yes · Technical impact: total

References

exploitgithub.com/OneUptime/oneuptime/security/advisories/GHSA-q253-6wcm-h8hprefgithub.com/OneUptime/oneuptime/commit/9adbd04538714740506708d6fa610e433be4d2a4refgithub.com/OneUptime/oneuptime/releases/tag/10.0.42