Unintended Proxy or Intermediary ('Confused Deputy') Affecting github.com/fission/fission/pkg/buildermgr package, versions <1.24.0
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-GITHUBCOMFISSIONFISSIONPKGBUILDERMGR-17674774
- published29 Jun 2026
- disclosed10 Jun 2026
- creditUnknown
Introduced: 10 Jun 2026
CVE-2026-49821 Â (opens in a new tab)How to fix?
Upgrade github.com/fission/fission/pkg/buildermgr to version 1.24.0 or higher.
Overview
Affected versions of this package are vulnerable to Unintended Proxy or Intermediary ('Confused Deputy') via improper validation of the namespace field in the Package custom resource definition. An attacker can execute arbitrary commands during the build process and exfiltrate service account tokens by referencing an environment from a different namespace.