CVE-2026-86720

HIGHPre-NVD 8.18.1—
EchelonGraph scoreHIGH confidence

Score 8.1 from GitHub Security Advisory (severity: HIGH) published 2026-09-08. a secondary CVSS source baseline 8.1; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, secondary
Trending — 3 sources updated this weekElevated
8.1EG
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS PROB: 0%CVSS: 8.1Exploit: Elevated riskExposed: 0

No vendor fix yet — apply a workaround or compensating control (WAF / firewall / segmentation) and watch for a patch.

WWBN AVideo through commit c3edcc274c389816d434acadac07ee78eaf330c1 fails to validate ownership of live_restreams_id in resendRestreamer.json.php, allowing authenticated users with canStream to access other users' restream destinations. Attackers can broadcast their live stream to victim-configured restream destinations by supplying arbitrary live_restreams_id values, hijacking YouTube, Facebook, or Twitch streams using victim stream keys.

CVSS v3
8.1
EG Score
8.1(high)
EG Risk
52(Track*)
EG Risk 52/100SSVC: Track*

EG Risk is EchelonGraph's 0–100 priority score: it fuses intrinsic severity with real-world exploitation and automatability so you can rank equal-severity CVEs and fix the most dangerous first. Higher = act sooner. Distinct from the 0–10 EG Score (severity).

How it’s computed
Severity81% × 45%
Exploitation40% × 40%
Automatability0% × 15%
Action: Watch closely — could escalate to Attend.
EPSS PROB
0%
EPSS %ILE
19%
KEV
Not listed

Published

September 8, 2026

Last Modified

September 8, 2026

Advisory Details (2)

Auto-updated Sep 8, 2026
🔬 Proof of concept available. Patch available. Sources: github.
generic

WWBN AVideo Missing Authorization via resendRestreamer.json.php | Advisories | VulnCheck

https://www.vulncheck.com/advisories/wwbn-avideo-missing-authorization-via-resendrestreamer-json-php
github Patch Available🟡 PoC Available

Missing authorization: Live resendRestreamer.json.php uses another user's live_restreams_id / stream key · Advisory · WWBN/AVideo · GitHub

https://github.com/WWBN/AVideo/security/advisories/GHSA-7c8r-rj82-c8fv

Vendor Advisories for CVE-2026-86720(1)

These vendors published their own advisory mentioning this CVE — often with vendor-specific remediation steps + affected product lists not in NVD.

Weakness Classification(1)

MITRE Common Weakness Enumeration — the root-cause categories this CVE belongs to.

Data Freshness Timeline

(refreshed 28× in last 7d / 51× in last 30d)

Each row is a source pipeline that fetched or updated this CVE on that date, with what changed. For example, "NVD update" means NVD published or revised its analysis for this CVE; "MITRE cvelistV5" means we ingested or refreshed it from the CNA feed. Most recent first.

  1. 2026-09-20 23:49 UTCEG score recompute
  2. 2026-09-20 23:49 UTCGHSA enrichment
  3. 2026-09-20 20:16 UTCEPSS rescore
  4. 2026-09-20 11:54 UTCGHSA enrichment
  5. 2026-09-19 23:36 UTCEG score recompute
  6. 2026-09-19 23:36 UTCGHSA enrichment
  7. 2026-09-19 11:41 UTCGHSA enrichment
  8. 2026-09-18 23:47 UTCEG score recompute
  9. 2026-09-18 23:47 UTCGHSA enrichment
  10. 2026-09-18 19:28 UTCEPSS rescore
  11. 2026-09-18 11:50 UTCGHSA enrichment
  12. 2026-09-17 23:55 UTCEG score recompute
  13. 2026-09-17 23:55 UTCGHSA enrichment
  14. 2026-09-17 19:32 UTCEPSS rescore
  15. 2026-09-17 11:02 UTCGHSA enrichment
  16. 2026-09-16 23:07 UTCEG score recompute
  17. 2026-09-16 23:07 UTCGHSA enrichment
  18. 2026-09-16 14:09 UTCEPSS rescore
  19. 2026-09-16 11:13 UTCEG score recompute
  20. 2026-09-16 11:13 UTCGHSA enrichment
  21. 2026-09-16 05:15 UTCEPSS rescore
  22. 2026-09-15 23:19 UTCGHSA enrichment
  23. 2026-09-15 10:58 UTCEG score recompute
  24. 2026-09-15 10:58 UTCGHSA enrichment
  25. 2026-09-15 03:12 UTCEPSS rescore
Show 26 more
  1. 2026-09-15 03:12 UTCEPSS rescore
  2. 2026-09-14 22:39 UTCGHSA enrichment
  3. 2026-09-14 10:45 UTCGHSA enrichment
  4. 2026-09-13 22:51 UTCEG score recompute
  5. 2026-09-13 22:51 UTCGHSA enrichment
  6. 2026-09-13 10:57 UTCGHSA enrichment
  7. 2026-09-12 23:03 UTCEG score recompute
  8. 2026-09-12 23:03 UTCGHSA enrichment
  9. 2026-09-12 11:08 UTCGHSA enrichment
  10. 2026-09-11 23:13 UTCEG score recompute
  11. 2026-09-11 23:13 UTCGHSA enrichment
  12. 2026-09-11 14:53 UTCEPSS rescore
  13. 2026-09-11 14:53 UTCEPSS rescore
  14. 2026-09-11 10:58 UTCEG score recompute
  15. 2026-09-11 10:58 UTCGHSA enrichment
  16. 2026-09-10 23:03 UTCGHSA enrichment
  17. 2026-09-10 11:09 UTCEG score recompute
  18. 2026-09-10 11:08 UTCGHSA enrichment
  19. 2026-09-09 23:09 UTCGHSA enrichment
  20. 2026-09-09 08:05 UTCGHSA enrichment
  21. 2026-09-08 20:11 UTCEG score recompute
  22. 2026-09-08 20:11 UTCGHSA enrichment
  23. 2026-09-08 16:44 UTCEG score recompute
  24. 2026-09-08 15:50 UTCEG score recompute
  25. 2026-09-08 15:26 UTCEG score recompute
  26. 2026-09-08 15:24 UTCMITRE cvelistV5first tracked

Related CVEs(same CWE)

Frequently asked(5)

What is CVE-2026-86720?
CVE-2026-86720 is a high vulnerability published on September 8, 2026. WWBN AVideo through commit c3edcc274c389816d434acadac07ee78eaf330c1 fails to validate ownership of liverestreamsid in resendRestreamer.json.php, allowing authenticated users with canStream to access other users' restream destinations. Attackers can broadcast their live stream to victim-configured…
When was CVE-2026-86720 disclosed?
CVE-2026-86720 was first published in the National Vulnerability Database on September 8, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-86720 actively exploited?
CVE-2026-86720 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 0% probability of exploitation in the next 30 days, which ranks it in the top 81.5% of all scored CVEs.
What is the CVSS score of CVE-2026-86720?
CVE-2026-86720 has a CVSS v3 base score of 8.1 (NVD).
How do I remediate CVE-2026-86720?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-86720, EchelonGraph cross-links them in the Vendor Advisories panel below — those typically contain the canonical remediation steps, fixed version numbers, and any vendor-specific mitigations.

Dependency Blast Radius

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