CVE-2026-34758
High
High exploit probability or critical severity with a known exploit.
CVSS base
9.1
CRITICAL
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N
EPSS — probability of exploitation (30 days)
0.3%
28.3th percentile
CISA KEV
Not listed
Weakness / dates
CWE-306
Published 2026-04-02 · modified 2026-07-24
CVSS breakdown
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N
| Attack Vector | N | Network |
| Attack Complexity | L | Low |
| Privileges Required | N | None |
| User Interaction | N | None |
| Scope | U | Unchanged |
| Confidentiality | H | High |
| Integrity | H | High |
| Availability | N | None |
Timeline
- 2026-04-02 — Published (NVD)
- 2026-07-24 — Last modified (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.
Affected
References
- https://github.com/OneUptime/oneuptime/commit/9adbd04538714740506708d6fa610e433be4d2a4
- 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