Use of Externally-Controlled Format String Affecting libpq package, versions [14.2,14.23)[15.3,15.18)[16.8,16.14)
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.
Do your applications use this vulnerable package?
In a few clicks we can analyze your entire application and see what components are vulnerable in your application, and suggest you quick fixes.
Test your applicationsSnyk Learn
Learn about Use of Externally-Controlled Format String vulnerabilities in an interactive lesson.
Start learning- Snyk IDSNYK-CONAN-LIBPQ-16691370
- published14 May 2026
- disclosed14 May 2026
- creditXint Code
Introduced: 14 May 2026
CVE-2026-6474 (opens in a new tab)How to fix?
Upgrade libpq to version 14.23, 15.18, 16.14 or higher.
Overview
Affected versions of this package are vulnerable to Use of Externally-Controlled Format String in the timeofday function when processing crafted timezone zones. An attacker can access portions of server memory by supplying specially crafted input to the timeofday function.