CVE-2026-56240
MEDIUMCapgo - Billing Authorization Bypass via Exhausted Usage Credits
Title source: cnaDescription
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.
References (2)
Core 2
Core References
Vendor Advisory vendor-advisory
GitHub Security Advisory (GHSA-g9fc-82c2-p2r6)
https://github.com/Cap-go/capgo/security/advisories/GHSA-g9fc-82c2-p2r6
Third Party Advisory third-party-advisory
VulnCheck Advisory: Capgo - Billing Authorization Bypass via Exhausted Usage Credits
https://www.vulncheck.com/advisories/capgo-billing-authorization-bypass-via-exhausted-usage-credits
Scores
CVSS v3
4.3
EPSS
0.0018
EPSS Percentile
8.1%
Attack Vector
NETWORK
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N
CISA SSVC
Vulnrichment
Exploitation
poc
Automatable
no
Technical Impact
partial
Details
CWE
CWE-285
Status
published
Products (2)
Capgo/Capgo
< 12.128.12
Capgo/Capgo
12.128.12
Published
Jul 11, 2026
Tracked Since
Jul 11, 2026