Path Traversal Vulnerability in pghoard Backup Tool
CVE-2026-63120

8.4HIGH

Key Information:

Vendor

Aiven-open

Status
Pghoard
Vendor
CVE Published:
23 October 2026

What is CVE-2026-63120?

The pghoard backup and restore tool, utilized for PostgreSQL databases, contains a vulnerability that stems from an incomplete path traversal fix. This issue allows attackers with write access to the backup object storage (such as Amazon S3, Google Cloud Storage, or Microsoft Azure) to perform unauthorized file writes and create directories outside the specified PostgreSQL data directory. Specifically, when a database administrator executes a restore operation using a maliciously crafted delta backup manifest, they may inadvertently expose the system to arbitrary file writes, which can lead to severe security breaches. This vulnerability has been addressed in version 2.7.2.

Affected Version(s)

pghoard < 2.7.2

References

https://github.com/Aiven-Open/pghoard/security/advisories...
x_refsource_CONFIRM
https://github.com/Aiven-Open/pghoard/releases/tag/2.7.2
x_refsource_MISC

CVSS V3.1

Score:
8.4
Severity:
HIGH
Confidentiality:
High
Integrity:
High
Availability:
High
Attack Vector:
Network
Attack Complexity:
Low
Privileges Required:
High
User Interaction:
Required
Scope:
Changed

Timeline

  • Vulnerability published

  • Vulnerability Reserved

.