Missing Synchronization Affecting github.com/spectolabs/hoverfly/core package, versions <1.12.8
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Test your applications- Snyk IDSNYK-GOLANG-GITHUBCOMSPECTOLABSHOVERFLYCORE-17972474
- published14 Jul 2026
- disclosed14 Jul 2026
- creditUnknown
Introduced: 14 Jul 2026
CVE-2026-50013 Â (opens in a new tab)Common Vulnerabilities and Exposures (CVE) are common identifiers for publicly known security vulnerabilities
Common Weakness Enumeration (CWE) is a category system for software weaknesses
Common Weakness Enumeration (CWE) is a category system for software weaknesses
How to fix?
Upgrade github.com/SpectoLabs/hoverfly/core to version 1.12.8 or higher.
Overview
Affected versions of this package are vulnerable to Missing Synchronization in the AddDiff function when running in Diff mode, which writes to the shared responsesDiff map without synchronization. An attacker can cause the process to crash and become unavailable by sending multiple concurrent proxy requests, leading to a fatal error due to concurrent map access.