Improper Input Validation Affecting guac package, versions <1.1.0-r28
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.
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-WOLFILATEST-GUAC-19165795
- published22 Aug 2026
- disclosed19 Aug 2026
Introduced: 19 Aug 2026
NewCVE-2026-61711 (opens in a new tab)How to fix?
Upgrade Wolfi guac to version 1.1.0-r28 or higher.
NVD Description
Note: Versions mentioned in the description apply only to the upstream guac package and not the guac package as distributed by Wolfi.
See How to fix? for Wolfi relevant fixed versions and status.
BuildKit is a toolkit for converting source code to build artifacts in an efficient, expressive and repeatable manner. Prior to 0.31.1, a custom frontend could place an invalid SecurityMode value in a crafted build request, and executor/oci/spec_linux.go treated the unsupported value as a non-sandbox mode without requiring the security.insecure entitlement. This disabled Seccomp and AppArmor protections for the build container even though Linux capabilities remained restricted. This issue is fixed in version 0.31.1.