CVE-2026-56282 Capgo - Information Disclosure via Unauthenticated /replication Endpoint
Unauthenticated attackers can access the /replication endpoint to retrieve sensitive PostgreSQL replication telemetry and infrastructure details for reconnaissance.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2026-56282?
CVE-2026-56282 is a medium-severity vulnerability in Capgo, published on 20 Jun 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
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.
Weakness: CWE-200
Which versions are affected by CVE-2026-56282?
How do I fix CVE-2026-56282?
No fix has been published for CVE-2026-56282 yet. Limit exposure of the affected software until one is available.
Is CVE-2026-56282 being exploited?
It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-56282 exists.
Sources
Also known as GHSA-6fvp-3fgp-7pvf, GHSA-q6gm-xfwr-44f5.