What is CVE-2026-86186?

CVE-2026-86186 is a medium-severity vulnerability in Wwbn Avideo, classified under Improper Restriction of Excessive Authentication Attempts. CVSS score: 6.5/10. Published 2026-09-05.

How severe is CVE-2026-86186?

Medium severity. CVSS v3 base score is 6.5 out of 10.

Vulnerability in Wwbn Avideo

CVE-2026-86186

AVideo API fails to enforce rate limits when clients send a bot User-Agent header, allowing attackers to bypass all eight protected operations including login brute-force protection. Attackers can send requests with a bot User-Agent to disable rate limiting and perform unlimited password guessing attempts against any account from a single IP address.

Published 2026-09-05 · last modified 2026-09-08.

CVSS v3 metric

CVSS v3 base score 6.5 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N.

EPSS exploit prediction

EPSS: 0.003 (21.4th percentile), scored 2026-10-21.

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 21st percentile — 21.4% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.002 · newest: 0.003 · change: +0.001

Affected products

Wwbn Avideo

Weakness classification (CWE)

CWE-307 — Improper Restriction of Excessive Authentication Attempts

References

github.com/WWBN/AVideo/security/advisories/GHSA-qmmw-hmm4-xxp7 (vendor-advisory)
www.vulncheck.com/advisories/avideo-api-rate-limit-bypass-via-bot-user-agent-he… (third-party-advisory)

Frequently asked questions

What is CVE-2026-86186?: CVE-2026-86186 is a medium-severity vulnerability in Wwbn Avideo, classified under Improper Restriction of Excessive Authentication Attempts. CVSS score: 6.5/10. Published 2026-09-05.
How severe is CVE-2026-86186?: Medium severity. CVSS v3 base score is 6.5 out of 10.