CVE-2026-34758 | oneuptime up to 10.0.41 Notification missing authentication (GHSA-q253-6wcm-h8hp)

VDB-355017 · CVE-2026-34758 · GHSA-Q253-6WCM-H8HP ONEUPTIME UP TO 10.0.41 NOTIFICATION MISSING AUTHENTICATION HISTORYDIFFRELATEJSONXMLCTI CVSS Meta Temp Score Current Exploit Price (≈) CTI Interest Score 8.0 $0-$5k 0.26+ Summaryinfo A vulnerability was found in oneuptime up to 10.0.41. It has been classified as critical. This vulnerability affects unknown code of the component Notification Handler. Performing a manipulation results in missing authentication. This vulnerability is reported as CVE-2026-34758. The attack is possible to be carried out remotely. No exploit exists. Upgrading the affected component is recommended. Detailsinfo A vulnerability, which was classified as critical, was found in oneuptime up to 10.0.41. This affects an unknown code block of the component Notification Handler. The manipulation with an unknown input leads to a missing authentication vulnerability. CWE is classifying the issue as CWE-306. The product does not perform any authentication for functionality that requires a provable user identity or consumes a significant amount of resources. This is going to have an impact on confidentiality, integrity, and availability. The summary by CVE is: 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. The advisory is shared at github.com. This vulnerability is uniquely identified as CVE-2026-34758 since 03/30/2026. The exploitability is told to be easy. It is possible to initiate the attack remotely. No form of authentication is needed for exploitation. Neither technical details nor an exploit are publicly available. Upgrading to version 10.0.42 eliminates this vulnerability. The upgrade is hosted for download at github.com. Applying the patch 9adbd04538714740506708d6fa610e433be4d2a4 is able to eliminate this problem. The bugfix is ready for download at github.com. The best possible mitigation is suggested to be upgrading to the latest version. Productinfo Name oneuptime Version 10.0.0 10.0.1 10.0.2 10.0.3 10.0.4 10.0.5 10.0.6 10.0.7 10.0.8 10.0.9 10.0.10 10.0.11 10.0.12 10.0.13 10.0.14 10.0.15 10.0.16 10.0.17 10.0.18 10.0.19 10.0.20 10.0.21 10.0.22 10.0.23 10.0.24 10.0.25 10.0.26 10.0.27 10.0.28 10.0.29 10.0.30 10.0.31 10.0.32 10.0.33 10.0.34 10.0.35 10.0.36 10.0.37 10.0.38 10.0.39 10.0.40 10.0.41 License open-source Website Product: https://github.com/OneUptime/oneuptime/ CPE 2.3info 🔒 🔒 🔒 CPE 2.2info 🔒 🔒 🔒 CVSSv4info VulDB Vector: 🔒 VulDB Reliability: 🔍 CVSSv3info VulDB Meta Base Score: 8.2 VulDB Meta Temp Score: 8.0 VulDB Base Score: 7.3 VulDB Temp Score: 7.0 VulDB Vector: 🔒 VulDB Reliability: 🔍 CNA Base Score: 9.1 CNA Vector (GitHub_M): 🔒 CVSSv2info Vector Complexity Authentication Confidentiality Integrity Availability Unlock Unlock Unlock Unlock Unlock Unlock Unlock Unlock Unlock Unlock Unlock Unlock Unlock Unlock Unlock Unlock Unlock Unlock VulDB Base Score: 🔒 VulDB Temp Score: 🔒 VulDB Reliability: 🔍 Exploitinginfo Class: Missing authentication CWE: CWE-306 / CWE-287 CAPEC: 🔒 ATT&CK: 🔒 Physical: No Local: No Remote: Yes Availability: 🔒 Status: Not defined Price Prediction: 🔍 Current Price Estimation: 🔒 0-Day Unlock Unlock Unlock Unlock Today Unlock Unlock Unlock Unlock Threat Intelligenceinfo Interest: 🔍 Active Actors: 🔍 Active APT Groups: 🔍 Countermeasuresinfo Recommended: Upgrade Status: 🔍 0-Day Time: 🔒 Upgrade: oneuptime 10.0.42 Patch: 9adbd04538714740506708d6fa610e433be4d2a4 Timelineinfo 03/30/2026 CVE reserved 04/02/2026 +3 days Advisory disclosed 04/02/2026 +0 days VulDB entry created 04/03/2026 +0 days VulDB entry last update Sourcesinfo Product: github.com Advisory: GHSA-q253-6wcm-h8hp Status: Confirmed CVE: CVE-2026-34758 (🔒) GCVE (CVE): GCVE-0-2026-34758 GCVE (VulDB): GCVE-100-355017 Entryinfo Created: 04/03/2026 00:02 Changes: 04/03/2026 00:02 (67) Complete: 🔍 Cache ID: 99:34D:101 Discussion No comments yet. Languages: en. Please log in to comment. ◂ PreviousOverviewNext ▸