CVE-2026-56230
HIGHCapgo - Broken Object Level Authorization via x-limited-key-id Header
Title source: cnaDescription
Capgo before 12.128.2 contains a broken object level authorization vulnerability in middlewareKey() that accepts the client-controlled x-limited-key-id header without validating ownership, allowing authenticated users to adopt cross-tenant limited keys. Attackers can supply another tenant's limited key ID to bypass authorization checks and access unauthorized cross-tenant resources across multiple API endpoints.
References (2)
Core 2
Core References
Vendor Advisory vendor-advisory
GitHub Security Advisory (GHSA-cppm-733w-hg86)
https://github.com/Cap-go/capgo/security/advisories/GHSA-cppm-733w-hg86
Third Party Advisory third-party-advisory
VulnCheck Advisory: Capgo - Broken Object Level Authorization via x-limited-key-id Header
https://www.vulncheck.com/advisories/capgo-broken-object-level-authorization-via-x-limited-key-id-header
Scores
CVSS v3
8.8
EPSS
0.0032
EPSS Percentile
24.7%
Attack Vector
NETWORK
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
CISA SSVC
Vulnrichment
Exploitation
none
Automatable
no
Technical Impact
total
Details
CWE
CWE-639
Status
published
Products (2)
Capgo/Capgo
< 12.128.2
Capgo/Capgo
12.128.2
Published
Jun 30, 2026
Tracked Since
Jul 01, 2026