--- title: "CVE-2026-111441: openGauss-server - Buffer Overflow" description: "openGauss-server 2.1.0 to 7.0.0-RC3 contains a buffer overflow caused by improper length validation in HllObjectUnpack() during packed HLL unpacking, letting authenticated database users trigger heap overflow via malformed packed HLL input." url: https://panop.io/threat-heartbeat/CVE-2026-111441/ --- # CVE-2026-111441 openGauss-server - Buffer Overflow openGauss-server 2.1.0 to 7.0.0-RC3 contains a buffer overflow caused by improper length validation in HllObjectUnpack() during packed HLL unpacking, letting authenticated database users trigger heap overflow via malformed packed HLL input. CVSS base score 8.1 /10 High CISA KEV Not listed Public exploit None known Authentication Required EPSS 0.40% chance of exploitation in 30 days [View the NVD record ↗](https://nvd.nist.gov/vuln/detail/CVE-2026-111441) ## Details Type Buffer Overflow Impact Denial Of Service CVSS vector CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:H Published 19 October 2026 Updated 20 October 2026 Weakness [CWE-122](https://cwe.mitre.org/data/definitions/122.html) ## Vendor fix Update to openGauss-server 7.0.0-LTS or later where length validation and buffer copy are fixed. Patching closes this CVE. It does not tell you which of your systems run the affected version, or what else is exposed alongside them. ## References - [https://nvd.nist.gov/vuln/detail/CVE-2026-111441](https://nvd.nist.gov/vuln/detail/CVE-2026-111441) - [https://gitcode.com/opengauss/openGauss-server/pull/9380](https://gitcode.com/opengauss/openGauss-server/pull/9380) [← All CVEs](https://panop.io/threat-heartbeat/) ## What this record can't tell you - Whether you run the affected software, and where - Whether an attacker can actually reach and exploit it - The misconfigurations that never get a CVE number - What it would cost the business, ranked into what to fix first Panop answers these inside your environment, for this CVE and every other finding. [Book a demo](https://panop.io/demo)