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Vulnerability record · CVE-2026-56303 · published 11 July 2026

CVE-2026-56303: Information exposure vulnerability

Capgo before 12.128.2 contains an information disclosure vulnerability in the find_apikey_by_value PostgreSQL function marked SECURITY DEFINER and executable by the anon role. Unauthenticated attackers can call this function via the /rest/v1/rpc/find_apikey_by_value endpoint to retrieve sensitive API key metadata including user_id, mode, org scoping, and expiration details when supplied a valid key value.

8.7 CVSS 4.0 High EPSS 0.46% · top 62.7% CWE-200 · Information exposure Deferred
8.7CVSS 4.0 base score
0.46%EPSS exploitation probability, 30 days
NoNot in CISA KEV
0Affected product versions listed by NVD
3References
13 Jul 2026Last modified by NVD

Description

Capgo before 12.128.2 contains an information disclosure vulnerability in the find_apikey_by_value PostgreSQL function marked SECURITY DEFINER and executable by the anon role. Unauthenticated attackers can call this function via the /rest/v1/rpc/find_apikey_by_value endpoint to retrieve sensitive API key metadata including user_id, mode, org scoping, and expiration details when supplied a valid key value.

CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:

References

LinkTags
https://github.com/Cap-go/capgo/security/advisories/GHSA-2xjq-h43m-592f
https://www.vulncheck.com/advisories/capgo-unauthenticated-api-key-metadata-disclosure-via-security-definer-rpc-function
https://github.com/Cap-go/capgo/security/advisories/GHSA-2xjq-h43m-592f

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Source: NIST National Vulnerability Database (record CVE-2026-56303), CISA KEV, FIRST EPSS (scores of 2026-09-27). This page is refreshed as NVD updates the record.