CVE-2026-18024 Affecting postgresql-18 package, versions <18.6-0ubuntu0.26.04.1
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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- published21 Aug 2026
- disclosed13 Aug 2026
Introduced: 13 Aug 2026
NewCVE-2026-18024 (opens in a new tab)How to fix?
Upgrade Ubuntu:26.04 postgresql-18 to version 18.6-0ubuntu0.26.04.1 or higher.
NVD Description
Note: Versions mentioned in the description apply only to the upstream postgresql-18 package and not the postgresql-18 package as distributed by Ubuntu.
See How to fix? for Ubuntu:26.04 relevant fixed versions and status.
Buffer over-read in PostgreSQL ascii() SQL function allows a user to disclose up to 3 bytes after the end of a specific allocation, via a crafted text value. This is the same class of defect that CVE-2026-2006 fixed, though this instance has less impact. Versions before PostgreSQL 18.6, 17.11, 16.15, 15.19, and 14.24 are affected.