Improper Validation of Specified Quantity in Input Affecting c-ares package, versions [,1.34.7)
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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- published24 Sept 2026
- disclosed18 Sept 2026
- creditUnknown
Introduced: 18 Sep 2026
NewCVE-2026-69186 (opens in a new tab)How to fix?
Upgrade c-ares to version 1.34.7 or higher.
Overview
Affected versions of this package are vulnerable to Improper Validation of Specified Quantity in Input via the ares_dns_parse function. An attacker can cause excessive heap memory allocation and degrade or deny name resolution services by sending specially crafted DNS responses with manipulated record counts.