CVE-2026-14664: PostgreSQL regexp heap buffer overflow executes arbitrary code
Postgresql · PostgreSQL
Vendor fix available · Affected: PostgreSQL · Exploitation: unlikely (under 1%)
Not in CyberSIXT coverage yet: no article names this CVE. This page shows the public record.
Higher than 38% of scored CVEs
DescriptionCVE.org
Heap buffer overflow in PostgreSQL regexp allows the query author to execute arbitrary code as the operating system user running the database, via text that would not pass encoding validation. This shares heritage with CVE-2026-2006, but this case involved unanticipated data growth when round-tripped through pg_wchar. Versions before PostgreSQL 18.6, 17.11, 16.15, 15.19, and 14.24 are affected.
Affected products1
From the CVE record. A product or version that is not listed is unknown, not unaffected.
- PostgreSQLfrom 18 before 18.6; from 17 before 17.11; from 16 before 16.15; from 15 before 15.19; before 14.24
On the Atlas
Every published CVE is on the CyberSIXT Atlas, grouped by weakness, vendor and month.
- Exploitation
- Unlikely (under 1%). EPSS under 1%, or no score yet.
- CISA KEV
- Not listed
- Public check
- No public nuclei template
- Vendor
- Postgresql
- Published
- August 2026
CoverageNo articles yet
No CyberSIXT article names CVE-2026-14664 yet, so there is no coverage timeline, action brief or change log for it. Everything on this page comes from the public CVE record, CISA KEV, EPSS and the nuclei template index. Search the archive or see the CVEs in the news.