Protection Mechanism Failure Affecting erb package, versions <4.0.3.1>=4.0.0, <4.0.4>=5.0.0, <6.0.1.1>=6.0.2, <6.0.4
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-RUBY-ERB-16636179
- published11 May 2026
- disclosed24 Apr 2026
- creditTristanInSec
Introduced: 24 Apr 2026
NewCVE-2026-41316 (opens in a new tab)How to fix?
Upgrade erb to version 4.0.3.1, 4.0.4, 6.0.1.1, 6.0.4 or higher.
Overview
Affected versions of this package are vulnerable to Protection Mechanism Failure in the def_module, def_method, or def_class methods due to insufficient deserialization guards. An attacker can achieve arbitrary code execution by supplying crafted input to Marshal.load in a Ruby application that loads untrusted data.