Resource exhaustion in Capgo
CVE-2026-56324
Capgo before 12.128.2 contains a rate limit bypass vulnerability in the channel_self endpoint that allows attackers to circumvent rate limiting by rotating the user-controlled device_id parameter. Attackers can send multiple requests per second by changing device_id values to flood the channel_devices table and cause database exhaustion.
Published · last modified .
CVSS v3 metric
CVSS v3 base score 8.2 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:H.
EPSS exploit prediction
EPSS: 0.005 (38.0th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 38th percentile — 38.0% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.005 · newest: 0.005 · change: 0.000
Affected products
- Capgo — versions 0, 12.128.2
Weakness classification (CWE)
References
- github.com/Cap-go/capgo/security/advisories/GHSA-77p2-9rcr-5w27 (vendor-advisory)
- www.vulncheck.com/advisories/capgo-rate-limit-bypass-via-user-controlled-device… (third-party-advisory)
Frequently asked questions
- What is CVE-2026-56324?
- CVE-2026-56324 is a high-severity vulnerability in Capgo, classified under Allocation of Resources Without Limits or Throttling. CVSS score: 8.2/10. Published 2026-06-22.
- How severe is CVE-2026-56324?
- High severity. CVSS v3 base score is 8.2 out of 10.