Path Traversal in Aiven-Open Pghoard
CVE-2026-63120
pghoard is a PostgreSQL backup daemon and restore tooling that stores backup data in cloud object stores. Prior to version 2.7.2, an incomplete path traversal fix in pghoard allows an attacker with write access to the backup object storage (such as S3, GCS, or Azure) to execute arbitrary file writes and directory creation outside the designated PostgreSQL data directory (pgdata). When a database administrator executes a restore operation (via pghoard_restore get-basebackup), a maliciously crafted delta backup manifest with path traversal sequences (e.g., ../../../../etc/cron.d/backdoor) will write arbitrary payloads to the host system. This issue has been patched in version 2.7.2.
Vulnerability class: Path Traversal (Directory Traversal)
Published · last modified .
CVSS v3 metric
CVSS v3 base score 8.4 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:C/C:H/I:H/A:H.
EPSS exploit prediction
No EPSS score from FIRST.org yet. New CVEs usually get one within a few days; no score means no signal yet, not low risk. How EPSS works.
Affected products
- Aiven-Open Pghoard — versions < 2.7.2
Weakness classification (CWE)
References
Frequently asked questions
- What is CVE-2026-63120?
- CVE-2026-63120 is a high-severity vulnerability in Aiven-Open Pghoard, classified under Path Traversal. CVSS score: 8.4/10. Published 2026-10-23.
- How severe is CVE-2026-63120?
- High severity. CVSS v3 base score is 8.4 out of 10.