CVE-2026-33716

CRITICALPre-NVD 9.49.4—
EchelonGraph scoreMEDIUM confidence

Score 9.4 from GitHub Security Advisory (severity: CRITICAL) published 2026-03-25. a secondary CVSS source baseline 9.4; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, secondary
9.4EG
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS PROB: 0%CVSS: 9.4Exploit: None knownExposed: 0

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

WWBN AVideo is an open source video platform. In versions up to and including 26.0, the standalone live stream control endpoint at plugin/Live/standAloneFiles/control.json.php accepts a user-supplied streamerURL parameter that overrides where the server sends token verification requests. An attacker can redirect token verification to a server they control that always returns {"error": false}, completely bypassing authentication. This grants unauthenticated control over any live stream on the platform, including dropping active publishers, starting/stopping recordings, and probing stream existence. Commit 388fcd57dbd16f6cb3ebcdf1d08cf2b929941128 contains a patch.

CVSS v3
9.4
EG Score
9.4(medium)
EG Risk
47(Track)
EG Risk 47/100SSVC: 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
Severity94% × 45%
Exploitation0% × 40%
Automatability30% × 15%
Action: Routine — remediate on your standard cadence.
EPSS PROB
0%
EPSS %ILE
37%
KEV
Not listed

Published

March 23, 2026

Last Modified

June 17, 2026

Advisory Details (2)

Auto-updated Sep 14, 2026
🔬 Proof of concept available. Patch available. Sources: github_commit, github.
github Patch Available🟡 PoC Available

Unauthenticated Live Stream Control via Token Verification URL Override in control.json.php · Advisory · WWBN/AVideo · GitHub

https://github.com/WWBN/AVideo/security/advisories/GHSA-9hv9-gvwm-95f2
github_commit Patch Available

commit 388fcd57dbd1 (WWBN/AVideo)

Patch available: WWBN/AVideo 29.0 (contains commit 388fcd57dbd1)

https://github.com/WWBN/AVideo/commit/388fcd57dbd16f6cb3ebcdf1d08cf2b929941128

Patch Availability(1)

Vendor / EcosystemFixed in / PatchReleasedSource
composerwwbn/avideo—ghsa

Patches are aggregated from vendor advisories (Red Hat, Microsoft, Cisco, GitHub) and package ecosystems (OSV, GHSA). Multiple rows for the same upstream release have been deduplicated.

Affected Packages

(1 across 1 ecosystem)
Packagist(1)
PackageVulnerable rangeFixed inDependents
wwbn/avideo10.4 ... 26.0 (17 versions)——

Weakness Classification(1)

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

Data Freshness Timeline

(refreshed 7× in last 7d / 32× 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. 2026-09-15 03:11 UTCEPSS rescore
  2. 2026-09-13 16:47 UTCEPSS rescore
  3. 2026-09-12 15:01 UTCEPSS rescore
  4. 2026-09-11 14:53 UTCEPSS rescore
  5. 2026-09-11 09:37 UTCEPSS rescore
  6. 2026-09-10 09:34 UTCEPSS rescore
  7. 2026-09-08 22:00 UTCEPSS rescore
  8. 2026-09-07 16:01 UTCEPSS rescore
  9. 2026-09-06 13:47 UTCEPSS rescore
  10. 2026-09-04 05:06 UTCEPSS rescore
  11. 2026-09-02 16:08 UTCOSV refresh
  12. 2026-09-02 14:11 UTCEPSS rescore
  13. 2026-09-01 13:53 UTCEPSS rescore
  14. 2026-09-01 04:39 UTCEPSS rescore
  15. 2026-09-01 04:39 UTCEPSS rescore
  16. 2026-08-30 19:17 UTCEPSS rescore
  17. 2026-08-30 01:22 UTCEPSS rescore
  18. 2026-08-28 21:41 UTCEPSS rescore
  19. 2026-08-27 14:25 UTCEPSS rescore
  20. 2026-08-26 14:46 UTCEPSS rescore
  21. 2026-08-25 13:49 UTCEPSS rescore
  22. 2026-08-24 14:17 UTCEPSS rescore
  23. 2026-08-23 00:19 UTCEPSS rescore
  24. 2026-08-21 23:49 UTCEPSS rescore
  25. 2026-08-20 22:55 UTCEPSS rescore
Show 71 more
  1. 2026-08-20 22:55 UTCEPSS rescore
  2. 2026-08-19 17:03 UTCEPSS rescore
  3. 2026-08-18 13:48 UTCEPSS rescore
  4. 2026-08-17 13:47 UTCEPSS rescore
  5. 2026-08-16 14:56 UTCEPSS rescore
  6. 2026-08-16 10:45 UTCEG score recompute
  7. 2026-08-16 10:45 UTCGHSA enrichment
  8. 2026-08-16 02:14 UTCEPSS rescore
  9. 2026-08-15 01:30 UTCEPSS rescore
  10. 2026-08-14 23:22 UTCGHSA enrichment
  11. 2026-08-14 19:45 UTCGHSA enrichment
  12. 2026-08-14 14:13 UTCGHSA enrichment
  13. 2026-08-14 10:36 UTCGHSA enrichment
  14. 2026-08-14 06:56 UTCEG score recompute
  15. 2026-08-14 06:56 UTCGHSA enrichment
  16. 2026-08-13 22:00 UTCEPSS rescore
  17. 2026-08-13 04:53 UTCGHSA enrichment
  18. 2026-08-13 01:16 UTCGHSA enrichment
  19. 2026-08-12 21:39 UTCEG score recompute
  20. 2026-08-12 21:39 UTCGHSA enrichment
  21. 2026-08-12 13:50 UTCEPSS rescore
  22. 2026-08-12 00:49 UTCGHSA enrichment
  23. 2026-08-11 21:13 UTCEG score recompute
  24. 2026-08-11 21:13 UTCGHSA enrichment
  25. 2026-08-11 07:53 UTCGHSA enrichment
  26. 2026-08-11 04:16 UTCEG score recompute
  27. 2026-08-11 04:16 UTCGHSA enrichment
  28. 2026-08-11 00:00 UTCEPSS rescore
  29. 2026-08-10 12:12 UTCGHSA enrichment
  30. 2026-08-10 07:25 UTCGHSA enrichment
  31. 2026-08-10 03:48 UTCGHSA enrichment
  32. 2026-08-10 00:10 UTCGHSA enrichment
  33. 2026-08-09 20:33 UTCGHSA enrichment
  34. 2026-08-09 16:56 UTCEG score recompute
  35. 2026-08-09 16:56 UTCGHSA enrichment
  36. 2026-08-09 13:46 UTCEPSS rescore
  37. 2026-08-09 13:18 UTCGHSA enrichment
  38. 2026-08-09 06:33 UTCEG score recompute
  39. 2026-08-09 06:33 UTCGHSA enrichment
  40. 2026-08-08 16:37 UTCEPSS rescore
  41. 2026-08-08 11:25 UTCGHSA enrichment
  42. 2026-08-08 07:24 UTCGHSA enrichment
  43. 2026-08-08 03:47 UTCGHSA enrichment
  44. 2026-08-08 00:08 UTCGHSA enrichment
  45. 2026-08-07 20:31 UTCGHSA enrichment
  46. 2026-08-07 16:54 UTCEG score recompute
  47. 2026-08-07 16:54 UTCGHSA enrichment
  48. 2026-08-06 19:11 UTCEG score recompute
  49. 2026-08-06 19:11 UTCGHSA enrichment
  50. 2026-08-06 13:46 UTCEPSS rescore
  51. 2026-08-06 08:31 UTCGHSA enrichment
  52. 2026-08-06 04:53 UTCGHSA enrichment
  53. 2026-08-06 01:16 UTCEG score recompute
  54. 2026-08-06 01:16 UTCGHSA enrichment
  55. 2026-08-05 19:17 UTCEPSS rescore
  56. 2026-08-04 15:10 UTCEPSS rescore
  57. 2026-08-04 10:38 UTCEPSS rescore
  58. 2026-08-04 04:09 UTCGHSA enrichment
  59. 2026-08-04 00:00 UTCEG score recompute
  60. 2026-08-04 00:00 UTCGHSA enrichment
  61. 2026-08-03 10:36 UTCEPSS rescore
  62. 2026-08-02 23:08 UTCGHSA enrichment
  63. 2026-08-02 19:31 UTCGHSA enrichment
  64. 2026-08-02 15:54 UTCEG score recompute
  65. 2026-08-02 15:54 UTCGHSA enrichment
  66. 2026-08-02 02:27 UTCEPSS rescore
  67. 2026-08-01 04:16 UTCEPSS rescore
  68. 2026-07-30 16:28 UTCEPSS rescore
  69. 2026-07-30 01:30 UTCEPSS rescore
  70. 2026-07-27 14:32 UTCEG score recompute
  71. 2026-07-27 14:32 UTCGHSA enrichment

Related CVEs(same product + same CWE)

Frequently asked(5)

What is CVE-2026-33716?
CVE-2026-33716 is a critical vulnerability published on March 23, 2026. WWBN AVideo is an open source video platform. In versions up to and including 26.0, the standalone live stream control endpoint at plugin/Live/standAloneFiles/control.json.php accepts a user-supplied streamerURL parameter that overrides where the server sends token verification requests. An…
When was CVE-2026-33716 disclosed?
CVE-2026-33716 was first published in the National Vulnerability Database on March 23, 2026, with the most recent update on June 17, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-33716 actively exploited?
CVE-2026-33716 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 63.0% of all scored CVEs.
What is the CVSS score of CVE-2026-33716?
CVE-2026-33716 has a CVSS v3 base score of 9.4 (NVD).
How do I remediate CVE-2026-33716?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-33716, 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

See which npm, PyPI, Go, and Maven packages are affected by CVE-2026-33716

Explore →

Is Your Infrastructure Affected by CVE-2026-33716?

EchelonGraph automatically scans your cloud infrastructure and maps CVE exposure using blast radius analysis.

Start Free Scan →Browse All CVEs