Missing Synchronization Affecting github.com/spectolabs/hoverfly/core package, versions <1.12.8
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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- published14 Jul 2026
- disclosed14 Jul 2026
- creditUnknown
Introduced: 14 Jul 2026
CVE-2026-50013 Â (opens in a new tab)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.