Double Free Affecting std/net package, versions <1.25.10>=1.26.0-0 <1.26.3
Threat Intelligence
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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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- published8 May 2026
- disclosed7 May 2026
- credithamayanhamayan
Introduced: 7 May 2026
CVE-2026-33811 (opens in a new tab)How to fix?
Upgrade std/net to version 1.25.10, 1.26.3 or higher.
Overview
std/net is a Go standard library package std/net
Affected versions of this package are vulnerable to Double Free.
Go Vulnerability Report:
When using LookupCNAME with the cgo DNS resolver, a very long CNAME response can trigger a double-free of C memory and a crash.