CVE-2026-34758
OneUptime: Missing Authentication on Notification Endpoints
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.
INFO
Published Date :
April 2, 2026, 7:21 p.m.
Last Modified :
April 3, 2026, 7:52 p.m.
Remotely Exploit :
Yes !
Source :
[email protected]
CVSS Scores
| Score | Version | Severity | Vector | Exploitability Score | Impact Score | Source |
|---|---|---|---|---|---|---|
| CVSS 3.1 | CRITICAL | [email protected] |
Solution
- Update OneUptime to version 10.0.42.
- Ensure Notification test and Phone Number endpoints are secured.
References to Advisories, Solutions, and Tools
Here, you will find a curated list of external links that provide in-depth
information, practical solutions, and valuable tools related to
CVE-2026-34758.
| URL | Resource |
|---|---|
| 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 | Exploit Mitigation Vendor Advisory |
| https://github.com/OneUptime/oneuptime/security/advisories/GHSA-q253-6wcm-h8hp | Exploit Mitigation Vendor Advisory |
CWE - Common Weakness Enumeration
While CVE identifies
specific instances of vulnerabilities, CWE categorizes the common flaws or
weaknesses that can lead to vulnerabilities. CVE-2026-34758 is
associated with the following CWEs:
Common Attack Pattern Enumeration and Classification (CAPEC)
Common Attack Pattern Enumeration and Classification
(CAPEC)
stores attack patterns, which are descriptions of the common attributes and
approaches employed by adversaries to exploit the CVE-2026-34758
weaknesses.
We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).
Results are limited to the first 15 repositories due to potential performance issues.
The following list is the news that have been mention
CVE-2026-34758 vulnerability anywhere in the article.
The following table lists the changes that have been made to the
CVE-2026-34758 vulnerability over time.
Vulnerability history details can be useful for understanding the evolution of a vulnerability, and for identifying the most recent changes that may impact the vulnerability's severity, exploitability, or other characteristics.
-
Initial Analysis by [email protected]
Apr. 03, 2026
Action Type Old Value New Value Added CPE Configuration OR *cpe:2.3:a:hackerbay:oneuptime:*:*:*:*:*:*:*:* versions up to (excluding) 10.0.40 Added Reference Type GitHub, Inc.: https://github.com/OneUptime/oneuptime/commit/9adbd04538714740506708d6fa610e433be4d2a4 Types: Patch Added Reference Type GitHub, Inc.: https://github.com/OneUptime/oneuptime/releases/tag/10.0.42 Types: Release Notes Added Reference Type CISA-ADP: https://github.com/OneUptime/oneuptime/security/advisories/GHSA-q253-6wcm-h8hp Types: Exploit, Mitigation, Vendor Advisory Added Reference Type GitHub, Inc.: https://github.com/OneUptime/oneuptime/security/advisories/GHSA-q253-6wcm-h8hp Types: Exploit, Mitigation, Vendor Advisory -
CVE Modified by 134c704f-9b21-4f2e-91b3-4a467353bcc0
Apr. 03, 2026
Action Type Old Value New Value Added Reference https://github.com/OneUptime/oneuptime/security/advisories/GHSA-q253-6wcm-h8hp -
New CVE Received by [email protected]
Apr. 02, 2026
Action Type Old Value New Value Added 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. Added CVSS V3.1 AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N Added CWE CWE-306 Added Reference https://github.com/OneUptime/oneuptime/commit/9adbd04538714740506708d6fa610e433be4d2a4 Added Reference https://github.com/OneUptime/oneuptime/releases/tag/10.0.42 Added Reference https://github.com/OneUptime/oneuptime/security/advisories/GHSA-q253-6wcm-h8hp