CVE-2026-84476

HIGHPre-NVD 7.57.5—
EchelonGraph scoreHIGH confidence

Score 7.5 from GitHub Security Advisory (severity: HIGH) published 2026-09-02. a secondary CVSS source baseline 7.5; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, secondary
Trending — 3 sources updated this weekElevated
7.5EG
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS PROB: 0%CVSS: 7.5Exploit: Elevated riskExposed: 0

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

WWBN AVideo fails to validate trusted proxies before accepting X-Real-IP and X-Forwarded-For headers, allowing attackers to spoof the client address used by enforceRateLimit(). Attackers can rotate the header value per request to bypass login rate limiting and perform unlimited credential guessing attacks.

CVSS v3
7.5
EG Score
7.5(high)
EG Risk
65(Attend)
EG Risk 65/100SSVC: Attend

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
Severity75% × 45%
Exploitation40% × 40%
Automatability100% × 15%
Action: Remediate soon — notable exploitation risk.
EPSS PROB
0%
EPSS %ILE
18%
KEV
Not listed

Published

September 1, 2026

Last Modified

September 8, 2026

Advisory Details (2)

Auto-updated Sep 1, 2026
🔬 Proof of concept available. Patch available. Sources: github.
generic

WWBN AVideo Authentication Bypass via X-Real-IP Header | Advisories | VulnCheck

https://www.vulncheck.com/advisories/wwbn-avideo-authentication-bypass-via-x-real-ip-header
github Patch Available🟡 PoC Available

Client-supplied X-Real-IP / X-Forwarded-For is trusted without any trusted-proxy check, letting a caller choose the address enforceRateLimit() keys on and defeat the login rate limit · Advisory · WWBN/AVideo · GitHub

https://github.com/WWBN/AVideo/security/advisories/GHSA-gg65-574p-h4wc

Vendor Advisories for CVE-2026-84476(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 27× in last 7d / 75× 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. 2026-09-19 21:04 UTCEG score recompute
  2. 2026-09-19 21:04 UTCGHSA enrichment
  3. 2026-09-19 09:14 UTCGHSA enrichment
  4. 2026-09-18 21:24 UTCEG score recompute
  5. 2026-09-18 21:24 UTCGHSA enrichment
  6. 2026-09-18 19:28 UTCEPSS rescore
  7. 2026-09-18 09:20 UTCGHSA enrichment
  8. 2026-09-17 21:31 UTCEG score recompute
  9. 2026-09-17 21:31 UTCGHSA enrichment
  10. 2026-09-17 19:32 UTCEPSS rescore
  11. 2026-09-17 09:42 UTCGHSA enrichment
  12. 2026-09-16 21:53 UTCEG score recompute
  13. 2026-09-16 21:53 UTCGHSA enrichment
  14. 2026-09-16 14:09 UTCEPSS rescore
  15. 2026-09-16 10:04 UTCEG score recompute
  16. 2026-09-16 10:04 UTCGHSA enrichment
  17. 2026-09-16 05:15 UTCEPSS rescore
  18. 2026-09-15 22:14 UTCGHSA enrichment
  19. 2026-09-15 10:24 UTCEG score recompute
  20. 2026-09-15 10:23 UTCGHSA enrichment
  21. 2026-09-15 03:12 UTCEPSS rescore
  22. 2026-09-15 03:12 UTCEPSS rescore
  23. 2026-09-14 22:31 UTCGHSA enrichment
  24. 2026-09-14 10:42 UTCGHSA enrichment
  25. 2026-09-13 22:53 UTCEG score recompute
Show 50 more
  1. 2026-09-13 22:53 UTCGHSA enrichment
  2. 2026-09-13 11:04 UTCGHSA enrichment
  3. 2026-09-12 23:15 UTCEG score recompute
  4. 2026-09-12 23:15 UTCGHSA enrichment
  5. 2026-09-12 11:25 UTCGHSA enrichment
  6. 2026-09-11 23:36 UTCEG score recompute
  7. 2026-09-11 23:36 UTCGHSA enrichment
  8. 2026-09-11 14:53 UTCEPSS rescore
  9. 2026-09-11 14:53 UTCEPSS rescore
  10. 2026-09-11 11:46 UTCEG score recompute
  11. 2026-09-11 11:46 UTCGHSA enrichment
  12. 2026-09-10 23:20 UTCGHSA enrichment
  13. 2026-09-10 11:30 UTCEG score recompute
  14. 2026-09-10 11:30 UTCGHSA enrichment
  15. 2026-09-09 23:35 UTCGHSA enrichment
  16. 2026-09-09 08:40 UTCEG score recompute
  17. 2026-09-09 08:40 UTCGHSA enrichment
  18. 2026-09-08 22:01 UTCEPSS rescore
  19. 2026-09-08 20:50 UTCGHSA enrichment
  20. 2026-09-08 11:52 UTCGHSA enrichment
  21. 2026-09-07 23:58 UTCEG score recompute
  22. 2026-09-07 23:58 UTCGHSA enrichment
  23. 2026-09-07 12:09 UTCGHSA enrichment
  24. 2026-09-07 00:17 UTCEG score recompute
  25. 2026-09-07 00:17 UTCGHSA enrichment
  26. 2026-09-06 13:48 UTCEPSS rescore
  27. 2026-09-06 12:25 UTCGHSA enrichment
  28. 2026-09-06 00:36 UTCEG score recompute
  29. 2026-09-06 00:36 UTCGHSA enrichment
  30. 2026-09-05 15:31 UTCEPSS rescore
  31. 2026-09-05 12:47 UTCGHSA enrichment
  32. 2026-09-05 00:56 UTCEG score recompute
  33. 2026-09-05 00:55 UTCGHSA enrichment
  34. 2026-09-04 13:03 UTCEG score recompute
  35. 2026-09-04 13:03 UTCGHSA enrichment
  36. 2026-09-04 05:07 UTCEPSS rescore
  37. 2026-09-04 01:11 UTCGHSA enrichment
  38. 2026-09-03 13:22 UTCGHSA enrichment
  39. 2026-09-03 01:24 UTCEG score recompute
  40. 2026-09-03 01:24 UTCGHSA enrichment
  41. 2026-09-02 14:12 UTCEPSS rescore
  42. 2026-09-02 13:34 UTCEG score recompute
  43. 2026-09-02 13:34 UTCGHSA enrichment
  44. 2026-09-02 13:16 UTCEG score recompute
  45. 2026-09-02 13:16 UTCGHSA enrichment
  46. 2026-09-02 11:14 UTCEG score recompute
  47. 2026-09-02 11:14 UTCGHSA enrichment
  48. 2026-09-01 23:25 UTCEG score recompute
  49. 2026-09-01 22:28 UTCEG score recompute
  50. 2026-09-01 22:27 UTCMITRE cvelistV5first tracked

Frequently asked(5)

What is CVE-2026-84476?
CVE-2026-84476 is a high vulnerability published on September 1, 2026. WWBN AVideo fails to validate trusted proxies before accepting X-Real-IP and X-Forwarded-For headers, allowing attackers to spoof the client address used by enforceRateLimit(). Attackers can rotate the header value per request to bypass login rate limiting and perform unlimited credential guessing…
When was CVE-2026-84476 disclosed?
CVE-2026-84476 was first published in the National Vulnerability Database on September 1, 2026, with the most recent update 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-2026-84476 actively exploited?
CVE-2026-84476 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 81.7% of all scored CVEs.
What is the CVSS score of CVE-2026-84476?
CVE-2026-84476 has a CVSS v3 base score of 7.5 (NVD).
How do I remediate CVE-2026-84476?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-84476, 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

Explore the affected products and dependency analysis for CVE-2026-84476

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