CVE•Published 2026-04-02•Modified 2026-04-13•1 article on news•6 live references•NVD data

CVE-2026-34759Hackerbay · Oneuptime

Vulnerability data via NVD (ingested)

CVSS v3.1

8.1

HIGH

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

EPSS percentile

—

Weaknesses (CWE)

CWE-862Missing Authorization

Description

OneUptime is an open-source monitoring and observability platform. Prior to version 10.0.42, multiple notification API endpoints are registered without authentication middleware, while sibling endpoints in the same codebase correctly use ClusterKeyAuthorization.isAuthorizedServiceMiddleware. These endpoints are externally reachable via the Nginx proxy at /notification/. Combined with a projectId leak from the public Status Page API, an unauthenticated attacker can purchase phone numbers on the victim's Twilio account and delete all existing alerting numbers. This issue has been patched in version 10.0.42.

Timeline

Published 2026-04-02

Modified 2026-04-13

External references

NVD MITRE Exploit-DB GitHub PoC Sploitus VulnCheck

Search for exposed instances

Shodan + Censys queries derived from NVD's CPE data. The vuln tag catches assets Shodan has explicitly linked to this CVE; the product / banner fingerprints find exposed instances even when the vuln tag was never applied (which is common).

Shodan · vuln tag0 hosts

vuln:CVE-2026-34759

Hosts Shodan has explicitly fingerprinted as vulnerable.

Shodan · product

product:"Hackerbay Oneuptime"

All exposed Hackerbay Oneuptime instances — cross-reference with the CVE's affected-version range.

Shodan · banner/body mention

http.html:"Oneuptime"

HTTP body or banner mentions "Oneuptime" — catches deploys Shodan didn't identify as a product.

More intel sources (5)

Shodan report

vuln:CVE-2026-34759