Description
Scriban versions 6.6.0 through 7.2.0 contain a non-enforcing ExpressionDepthLimit guard that fails to stop recursive descent parsing of deeply nested expressions. Attackers can supply templates with deeply nested parentheses, array initializers, object initializers, or unary operators to trigger an uncatchable StackOverflowException that immediately terminates the host process.
Affected products
| Vendor | Product | Affected | Fixed |
|---|---|---|---|
| scriban | scriban | 6.6.0 – ≤ 7.2.0 | — |
Affected packages
| Ecosystem | Package | Affected | Fixed | Record |
|---|---|---|---|---|
| NuGet | Scriban | >= 6.6.0, < 7.2.1 | 7.2.1 | GHSA-6q7j-xr26-3h2c |
| NuGet | Scriban.Signed | >= 6.6.0, < 7.2.1 | 7.2.1 | GHSA-6q7j-xr26-3h2c |
References
- GitHub Security Advisory (GHSA-6q7j-xr26-3h2c) vendor-advisory
- VulnCheck Advisory: Scriban 6.6.0 through 7.2.0 Parser Recursion Denial of Service third-party-advisory