Symlink Attack Affecting containers/bubblewrap package, versions [,0.12.0)
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-UNMANAGED-CONTAINERSBUBBLEWRAP-20074865
- published24 Sept 2026
- disclosed9 Sept 2026
- creditUnknown
Introduced: 9 Sep 2026
CVE-2026-87766 (opens in a new tab)How to fix?
Upgrade containers/bubblewrap to version 0.12.0 or higher.
Overview
Affected versions of this package are vulnerable to Symlink Attack via symlink traversal during the initial setup phase before any sandboxed process begins. An attacker can write files outside the intended sandbox on the host filesystem by exploiting symlinks in oldroot when processing untrusted application images.