CVE-2026-56337Capgo - Information Disclosure via Unauthenticated RPC Function exist_app_v2
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No exploitation reported and no EPSS estimate yet.
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Capgo before 12.128.2 contains an information disclosure vulnerability in the public.exist_app_v2 RPC function that allows unauthenticated attackers to enumerate app_ids by calling POST /rest/v1/rpc/exist_app_v2 with arbitrary appid parameters. Remote attackers can exploit this SECURITY DEFINER function to determine whether specific app_ids exist in the public.apps table, enabling cross-tenant app enumeration and privacy violations.
- CVSS
- 5.3 MEDIUM (v3.1, CNA)CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N
- Weakness (CWE)
- CWE-200
- Known exploited
- Not in CISA's KEV catalog
- EPSS (exploitation in the next 30 days)
- Not loaded for this CVE
- Assigned by
- VulnCheck
- NVD analysis
- Deferred
- Record last updated
- Jun 24, 2026
- First seen by InfoSec Signals
- Oct 9, 2026
Affected products
Capgo Capgo capgo:capgo (from the name) | before 12.128.2; 12.128.2 not affected | CNA record |
References
- https://github.com/Cap-go/capgo/security/advisories/GHSA-wjqr-gmx8-jj56vendor-advisory
- https://www.vulncheck.com/advisories/capgo-information-disclosure-via-unauthenticated-rpc-function-exist-app-v2third-party-advisory
The CVE record on cve.org NVD's entry
The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.