abraxas/postgres-basebackup-symlink

PoC

PostgreSQL 18.6 - High - Remote - File write - pg_basebackup follows absolute tar symlink leftover of CVE-2026-6475

view exploit source poc_in_githubauthor abraxaspublished 2026-10-12catalog poc_in_github

exploited CVEs (1)

Known CVEs related to this entry.

ID	severity	EPSS	exploitable	published
CVE-2026-6475US	—	0.41% (35th)	Exploit	2026-05-14
Symlink following in PostgreSQL pg_basebackup plain format and in pg_rewind allows an origin superuser to overwrite local files, e.g. /var/lib/postgres/.bashrc, that hijack the ope…

scry

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