PGHoard: Incomplete Path Traversal fix in restore.py allows Arbitrary File Write

CISA KEV is observed exploitation evidence. FIRST EPSS is a dated prediction of exploitation in the next 30 days. Missing scores are unknown. This collector requests predictions only for explicit CVE aliases in the public NuGet archive; Microsoft release views retain their existing prediction scope.

No collected risk observation for these identifiers. This does not establish absence of exploitation or a zero probability.

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.

Source published

23 Oct 2026 12:16:36 UTC

Source modified

23 Oct 2026 14:59:26 UTC

Observed here

23 Oct 2026 16:48:20 UTC

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CVSS 3.1 · 8.4 CVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:C/C:H/I:H/A:H