Permissive Cross-domain Policy with Untrusted Domains Affecting github.com/xyproto/algernon/engine package, versions <1.17.7
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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Test your applications- Snyk IDSNYK-GOLANG-GITHUBCOMXYPROTOALGERNONENGINE-17117181
- published1 Jun 2026
- disclosed26 May 2026
- creditDredsen
Introduced: 26 May 2026
CVE-2026-46431 Â (opens in a new tab)How to fix?
Upgrade github.com/xyproto/algernon/engine to version 1.17.7 or higher.
Overview
Affected versions of this package are vulnerable to Permissive Cross-domain Policy with Untrusted Domains via the SSE event server process. An attacker can access sensitive live filename streams by opening a cross-origin EventSource connection from a third-party page, allowing unauthorized reading of streamed data.