PostgreSQL to_char heap buffer overflow executes arbitrary code
41Vexday Risk Score
No sign of exploitation. It has a public proof of concept.
ssvc Attendcvss 8.8epss 0.6%
from disclosure to weapon5 days
Published on NVDAug 13
1st PoC+5d
exploitation probability
0.6%top 55% of all CVEs
observed exploitation
nono source reports it
1 public exploit(s)
Heap buffer overflow in PostgreSQL to_char(timestamptz) allows the party choosing the timezone to execute arbitrary code as the operating system user running the database, via a long POSIX timezone abbreviation. Versions before PostgreSQL 18.5, 17.11, 16.15, 15.19, and 14.24 are affected.
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Affected products
n/a · PostgreSQLpublic PoCs found — 1
githubgithub.com/HackSpeak/CVE-2026-14669★ 2⚠ Public resources, to assess the exposure of systems you control or are authorized to test. Test only with authorization.