CVE-2026-56282
MEDIUMCapgo - Information Disclosure via Unauthenticated /replication Endpoint
Title source: cnaDescription
Capgo before 12.128.2 contains an information disclosure vulnerability in the unauthenticated /replication endpoint that exposes internal PostgreSQL replication telemetry including slot names and WAL LSN positions. Attackers can access this endpoint without authentication to retrieve sensitive infrastructure details such as replication slot names, confirmed_flush_lsn, restart_lsn values, and database error messages for reconnaissance purposes.
References (2)
Core 2
Core References
Vendor Advisory vendor-advisory
GHSA Advisory GHSA-q6gm-xfwr-44f5
https://github.com/Cap-go/capgo/security/advisories/GHSA-q6gm-xfwr-44f5
Third Party Advisory third-party-advisory
VulnCheck Advisory: Capgo - Information Disclosure via Unauthenticated /replication Endpoint
https://www.vulncheck.com/advisories/capgo-information-disclosure-via-unauthenticated-replication-endpoint
Scores
CVSS v3
5.3
EPSS
0.0024
EPSS Percentile
14.8%
Attack Vector
NETWORK
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N
CISA SSVC
Vulnrichment
Exploitation
poc
Automatable
yes
Technical Impact
partial
Details
CWE
CWE-200
Status
published
Products (2)
Capgo/Capgo
< 12.128.2
Capgo/Capgo
12.128.2
Published
Jun 20, 2026
Tracked Since
Jun 20, 2026