Low severity3.8NVD Advisory· Published Aug 13, 2026· Updated Aug 29, 2026
CVE-2026-16241
CVE-2026-16241
Description
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.
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Affected products
14- osv-coords12 versionspkg:rpm/opensuse/postgresql16&distro=openSUSE%20Tumbleweedpkg:rpm/opensuse/postgresql18&distro=openSUSE%20Tumbleweedpkg:rpm/opensuse/postgresql17&distro=openSUSE%20Tumbleweedpkg:rpm/opensuse/postgresql14&distro=openSUSE%20Leap%2016.0pkg:bitnami/postgresqlpkg:rpm/opensuse/postgresql15&distro=openSUSE%20Tumbleweedpkg:rpm/opensuse/postgresql16&distro=openSUSE%20Leap%2016.0pkg:rpm/opensuse/postgresql18&distro=openSUSE%20Leap%2016.0pkg:rpm/opensuse/postgresql14&distro=openSUSE%20Tumbleweedpkg:rpm/opensuse/postgresql17&distro=openSUSE%20Leap%2016.0pkg:rpm/opensuse/postgresql15&distro=openSUSE%20Leap%2016.0pkg:rpm/opensuse/postgresql18-mini&distro=openSUSE%20Leap%2016.0
< 16.15-1.1+ 11 more
- (no CPE)range: < 16.15-1.1
- (no CPE)range: < 18.6-1.1
- (no CPE)range: < 17.11-1.1
- (no CPE)range: < 14.24-160000.1.1
- (no CPE)range: < 14.24.0
- (no CPE)range: < 15.19-1.1
- (no CPE)range: < 16.15-160000.1.1
- (no CPE)range: < 18.6-160000.1.1
- (no CPE)range: < 14.24-1.1
- (no CPE)range: < 17.11-160000.1.1
- (no CPE)range: < 15.19-160000.1.1
- (no CPE)range: < 18.6-160000.1.1
- Range: <18.6, <17.11, <16.15, <15.19, <14.24
- Range: <18.6, <17.11, <16.15, <15.19, <14.24
Patches
Vulnerability mechanics
References
1- www.postgresql.org/support/security/CVE-2026-16241/nvdVendor Advisory
News mentions
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