Out-of-bounds Write Affecting awslabs/aws-c-event-stream package, versions [,0.6.0)
Threat Intelligence
Snyk has a proof-of-concept or detailed explanation of how to exploit this vulnerability.
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 applications- Snyk IDSNYK-UNMANAGED-AWSLABSAWSCEVENTSTREAM-15922701
- published7 Apr 2026
- disclosed31 Mar 2026
- creditUnknown
Introduced: 31 Mar 2026
CVE-2026-5190 (opens in a new tab)How to fix?
Upgrade awslabs/aws-c-event-stream to version 0.6.0 or higher.
Overview
Affected versions of this package are vulnerable to Out-of-bounds Write while decoding header names. An attacker can achieve memory corruption and potentially execute arbitrary code by sending specially crafted event-stream messages to a client application.