Vulnerability · Published Jul 11, 2026 · Assigned by VulnCheck

CVE-2026-56240Capgo - Billing Authorization Bypass via Exhausted Usage Credits

Medium 4.3

In plain English

A medium-severity security flaw in Capgo from Capgo. Proof-of-concept exploit code is public. The chance it is exploited in the next 30 days is estimated at 0.2% (higher than 14% of all known vulnerabilities).

Severity (CVSS 3.1)4.3Medium

Exploit odds (30 days)0.2%top 86.3% of all CVEs

Exploited in the wildNo reportsCISA SSVC: poc

Attack toolingNoneno public tooling known

Official description

Capgo before 12.128.12 contains a billing authorization bypass vulnerability in the plan_valid calculation that allows organizations with exhausted or expired usage credit grants to bypass billing gates. Attackers can exploit the divergence between the plugin hot-path plan_valid expression and the authoritative billing gate to gain continued access to /updates, /stats, /channel_self, and attachment upload endpoints after credit depletion.

Affected products (as reported)

Vendor	Product	Versions
Capgo	Capgo	0 – before 12.128.12

Weakness: CWE-285 · Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N

References

GitHub Security Advisory (GHSA-g9fc-82c2-p2r6) vendor-advisory
VulnCheck Advisory: Capgo - Billing Authorization Bypass via Exhausted Usage Credits third-party-advisory