PT-2026-51152 · Cap Go · Cap-Go

Judel777 · Published 2026-06-20 · Updated 2026-06-20 · CVE-2026-56282

Positive Technologies (AI Summary)

CVSS v3.1

5.3

Medium

Base vector

AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N

Name of the Vulnerable Software and Affected Versions Capgo versions prior to 12.128.2

Description An information disclosure issue exists in the unauthenticated '/replication' endpoint. This allows attackers to retrieve internal PostgreSQL replication telemetry without authentication, exposing sensitive infrastructure details such as replication slot names, confirmed flush lsn, restart lsn values, and database error messages for reconnaissance purposes.

Recommendations Update to version 12.128.2 or later. As a temporary workaround, restrict access to the '/replication' endpoint to minimize the risk of exploitation.

Fix

Information Disclosure

Weakness Enumeration

CWE-200

Related Identifiers

CVE-2026-56282

Affected Products

Cap-Go

References · 5

• https://github.com/Cap-go/capgo/security/advisories/GHSA-q6gm-xfwr-44f5 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2026-56282 · Security Note
• https://twitter.com/CVEnew/status/2068380907744956758 · Twitter Post
• https://twitter.com/infoflowcloud/status/2068382480067899776 · Twitter Post
• https://vulncheck.com/advisories/capgo-information-disclosure-via-unauthenticated-replication-endpoint · Note