VulnSocial

CVE-2026-89054Disclosure

LOWCVSS 8.2 · HIGH

Signal is active with 1 mentions in latest observed window

Immediate actions

  • Track advisory updates for patch or workaround availability

Recommended action window: Monitor and triage in normal cycle

NVD description

A missing authorization vulnerability in OpenNMS Horizon allows configuration changes without authentication. The Spring Security policy for the /api/v2 REST API defines authorization rules for every HTTP method except PATCH, so the shipped @PATCH configuration endpoints for event configuration and SNMP data collection (which enable and disable event definitions and data-collection sources) are reachable with no authorization enforced. An unauthenticated attacker able to reach the web UI can disable event definitions and SNMP data collection, suppressing event and alarm generation and stopping metric collection - silently degrading monitoring and detection - with the change persisted and reloaded into the running system. The solution is to upgrade to Horizon 36.0.4 or newer. Meridian and Horizon installation instructions state that they are intended for installation within an organization's private networks and should not be directly accessible from the Internet.

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0.0/ 10 priority

Sources & remediation

Other references
Weakness type (CWE)
CWE-862

Priority

LOW

Exploitation

NONE

PoC

NONE

Patch

NONE

Momentum

NONE

Threat summary

  • 1 mentions across 1 observed day

What's happening

  • Technical details provided in 1 signal
  • Disclosure: 1 classified signal
  • 1 total mentions across 1 day

Deep dive

Activity timeline1 mentions / 1d
00111Mentions · 2026-09-11: 1Technical Details · 2026-09-11: 109-11
Signal classification1 categories
Disclosure
1100.0%
Referenced assets1 URL
Full discourse1 post
  • NewNormal Security@NewScanTeam
    Disclosure

    NewNormal Security turns the last 24 hours of CVEs into new detections, every day. 𝗗𝗮𝗶𝗹𝘆 𝗖𝗩𝗘 𝗥𝗲𝗽𝗼𝗿𝘁 — 11 Sep 2026 𝗔𝗱𝗱𝗲𝗱 to NewScan 𝘁𝗼𝗱𝗮𝘆: 📦 Reverse proxy on a build named in this week's advisories — reach the protected backend with none of its auth, allowlist or rate-limit middleware (Traefik CVE-2026-88877, CVE-2026-88007, CVE-2026-88009, CVE-2026-88008, CVE-2026-88004, CVE-2026-88878, CVE-2026-88879, CVE-2026-88011, CVE-2026-88012) 🔓 Authorization written as a list of HTTP verbs, with one verb missing from the list — send the same request as PATCH and the access check never runs (OpenNMS CVE-2026-89054) 🕳️ Media-server plugin status page answering anonymously — read the host's binary paths, open ports and plugin log without logging in (WWBN AVideo CVE-2026-89248) Test your stack with NewScan — free, self-hosted: https://newnormalsecurity.com/newscan?utm_source=x&utm_medium=social&utm_campaign=daily-cve #infosec #AppSec #AuthBypass #CSO #REDTEAM

    Post summary

    The daily CVE report enumerates several new vulnerabilities in Traefik, OpenNMS, and WWBN AVideo, describing potential auth bypass and information disclosure vectors, but offers no evidence of active exploitation, PoC, or remediation.

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