Aiven-Open pghoard up to 2.7.1 path traversal

Summaryinfo

A vulnerability marked as problematic has been reported in Aiven-Open pghoard up to 2.7.1. The affected element is an unknown function. This manipulation causes path traversal. This vulnerability is registered as CVE-2026-63120. Remote exploitation of the attack is possible. No exploit is available. It is suggested to upgrade the affected component.

Detailsinfo

A vulnerability has been found in Aiven-Open pghoard up to 2.7.1 and classified as problematic. Affected by this vulnerability is an unknown code. The manipulation with an unknown input leads to a path traversal vulnerability. The CWE definition for the vulnerability is CWE-22. The product uses external input to construct a pathname that is intended to identify a file or directory that is located underneath a restricted parent directory, but the product does not properly neutralize special elements within the pathname that can cause the pathname to resolve to a location that is outside of the restricted directory. As an impact it is known to affect confidentiality, integrity, and availability. The summary by CVE is:

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.

It is possible to read the advisory at github.com. This vulnerability is known as CVE-2026-63120 since 07/15/2026. The exploitation appears to be easy. The attack can be launched remotely. The exploitation requires an enhanced level of successful authentication. It demands that the victim is doing some kind of user interaction. The technical details are unknown and an exploit is not publicly available. The attack technique deployed by this issue is T1006 according to MITRE ATT&CK.

Upgrading to version 2.7.2 eliminates this vulnerability.

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Productinfo

Vendor

• Aiven-Open

Name

• pghoard

Version

• 2.7.0
• 2.7.1

Website

• Product: https://github.com/Aiven-Open/pghoard/

CPE 2.3info

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CPE 2.2info

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