CVE-2026-16241 Affecting postgresql15-server package, versions <0:15.19-1.amzn2023.0.1
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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- published1 Sept 2026
- disclosed13 Aug 2026
Introduced: 13 Aug 2026
NewCVE-2026-16241 (opens in a new tab)How to fix?
Upgrade Amazon-Linux:2023 postgresql15-server to version 0:15.19-1.amzn2023.0.1 or higher.
This issue was patched in ALAS2023-2026-2077.
NVD Description
Note: Versions mentioned in the description apply only to the upstream postgresql15-server package and not the postgresql15-server package as distributed by Amazon-Linux.
See How to fix? for Amazon-Linux:2023 relevant fixed versions and status.
Integer underflow in PostgreSQL ECPG allows a database server administrator to achieve temporary denial of service against the ECPG client via sending a bytea value lacking the mandatory prefix. The client overwrites a huge memory region with bytes outside attacker knowledge or control. This typically yields a simple SIGSEGV, but rare cases might achieve client-specific integrity impact via the write. Versions before PostgreSQL 18.6, 17.11, 16.15, 15.19, and 14.24 are affected.