Capgo - Cross-App Build Job Access via app_id/job_id Mismatch in /build/status and /build/logs
Key facts
- Attack vector
- Network
- Privileges required
- Low
- User interaction
- None
- Attack complexity
- Low
- Attack requirements
- None
- Impact type
- Security bypass
- Confidentiality · integrity · availability
- High · None · None
- Fix status
- Fixed
Attack profile from CVSS 4.0 · CNA. Fix status from CNA. Impact type from CWE-639.
Summary
Capgo before 12.128.2 contains an authorization bypass vulnerability in the /build/status and /build/logs endpoints that allows attackers to access build jobs belonging to different applications by supplying a mismatched app_id and job_id combination. Limited API keys restricted to a single app can retrieve build status and logs from other apps by providing an authorized app_id while using a job_id from an unauthorized app, exposing sensitive build information including logs, metadata, and potentially credentials.
Why it matters now
SSVC decision points
CISA ADP · SSVC 2.0.3
- Exploitation
- Poc
- Automatable
- No
- Technical impact
- Partial
The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.
Affected products
Remediation
- Fix · CNA Capgo (Capgo) Fixed in 12.128.2
Fixed in the same release
Records fixed by the same vendor advisory or release, as the CNA lists them.
- Release ·
Capgo 12.128.2
6 records Highest priority Priority HIGH 3 HIGH, 1 MEDIUM, 2 LOW
Other records, highest priority first
- TI-2026-40618 Capgo - Unauthenticated Organization Member Email Disclosure via get_org_members RPCPriority HIGH 77
- TI-2026-40607 Capgo - Unauthenticated API Key Validity Oracle and User Identity Disclosure via get_identity_apikey_only RPCPriority HIGH 77
- TI-2026-40604 Capgo - Privilege Escalation via SECURITY DEFINER Function apply_usage_overagePriority HIGH 65
Timeline
- 2026-10-02 Threatist record created from CVE-2026-56229
- 2026-10-03 Alias added: GHSA-fp2v-g9f3-6fwg
References
More Capgo vulnerabilities
- TI-2026-40602 Capgo - Unauthenticated API Key Generation via Client-Side Parameter Manipulation CVSS 4.0CRITICAL 9.3
- TI-2026-40473 Cap-go - Account Lockout via 2FA Misconfiguration on Unverified Email CVSS 4.0CRITICAL 9.3
- TI-2026-40465 Cap-go - OTP Bypass via Response Manipulation in Email Verification CVSS 4.0CRITICAL 9.3
- TI-2026-64782 capgo.app through 12.129.0 Cache Restoration of Deleted Bundles CVSS 4.0HIGH 8.7
- TI-2026-40704 Capgo - Unauthenticated Organization Existence Enumeration via rescind_invitation RPC CVSS 4.0HIGH 8.7
- TI-2026-40689 Capgo - Rate Limit Bypass via User-Controlled device_id Parameter CVSS 4.0HIGH 8.8
Sources
- CVE-2026-56229 · CVE Program
- CVE-2026-56229 · NVD
- FIRST EPSS
- GHSA-fp2v-g9f3-6fwg · GitHub Advisory Database · CC BY 4.0
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