Heap-based Buffer Overflow Affecting postgresql package, versions [14.0,14.24)[15.0,15.19)[16.0,16.15)[17.0,17.11)[18.0,18.5)
Threat Intelligence
The probability is the direct output of the EPSS model, and conveys an overall sense of the threat of exploitation in the wild. The percentile measures the EPSS probability relative to all known EPSS scores. Note: This data is updated daily, relying on the latest available EPSS model version. Check out the EPSS documentation for more details.
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- published29 Aug 2026
- disclosed13 Aug 2026
- creditUnknown
Introduced: 13 Aug 2026
NewCVE-2026-14664 (opens in a new tab)How to fix?
Upgrade postgresql to version 14.24, 15.19, 16.15, 17.11, 18.5 or higher.
Overview
Affected versions of this package are vulnerable to Heap-based Buffer Overflow via the regexp process. An attacker can execute arbitrary code as the operating system user running the database by submitting specially crafted text that bypasses encoding validation, leading to unanticipated data growth when processed through pg_wchar.