onyx

onyx --cves cve-2026-6475

CVE-2026-6475

HIGHPOCPostgreSQL
score
0.6
cvss
8.8
epss
0.3%
published
2026-05-14
kev added
—
first seen

PostgreSQL < 18.4, 17.10, 16.14, 15.18, and 14.23 contains a symlink following vulnerability in pg_basebackup plain format and pg_rewind, caused by origin superuser ability to overwrite local files, letting origin superuser hijack OS account, exploit requires action between commands and server start.

Timeline

How this CVE moved toward exploitation. Chart: last 30 days — trend score, EPSS, community mentions per day; hover the event lane.

events2026-05-14 — PublishedP2026-10-21 — Tracked by OnyxT2026-10-21 — Public PoCXscore2026-10-21: score 0.60.6epss2026-09-22: epss 0.3%2026-09-23: epss 0.3%2026-09-24: epss 0.5%2026-09-25: epss 0.3%2026-09-26: epss 0.3%2026-09-27: epss 0.3%2026-09-29: epss 0.3%2026-09-30: epss 0.3%2026-10-01: epss 0.3%2026-10-02: epss 0.3%2026-10-03: epss 0.3%2026-10-04: epss 0.3%2026-10-05: epss 0.3%2026-10-06: epss 0.3%2026-10-07: epss 0.3%2026-10-08: epss 0.3%2026-10-09: epss 0.3%2026-10-10: epss 0.3%2026-10-11: epss 0.3%2026-10-12: epss 0.3%2026-10-13: epss 0.3%2026-10-14: epss 0.3%2026-10-15: epss 0.3%2026-10-16: epss 0.3%2026-10-18: epss 0.3%2026-10-19: epss 0.3%2026-10-20: epss 0.3%2026-10-21: epss 0.3%0.3%mentions/day0no mentions in 30 days2026-09-22today
  1. Published
  2. Tracked by Onyx
  3. Public PoC

Exploit availability

Public PoC flagged by vulnx; no direct exploit link among the citations.

Weaknesses

CWE-61

References 1