Allocation of Resources Without Limits or Throttling

Overview Scriban.Signed is a fast, powerful, safe and lightweight scripting language and engine for .NET, which was primarily developed for text templating with a compatibility mode for parsing liquid templates. Affected versions of this package are vulnerable to Allocation of Resources Without...

Scriban: Built-in operations bypass LoopLimit and delay cancellation, enabling Denial of Service

Summary Scriban's LoopLimit only applies to script loop statements, not to expensive iteration performed inside operators and builtins. An attacker can submit a single expression such as 1..1000000 | array.size and force large amounts of CPU work even when LoopLimit is set to a very small value...

GHSA-C875-H985-HVRC Scriban: Built-in operations bypass LoopLimit and delay cancellation, enabling Denial of Service

Summary Scriban's LoopLimit only applies to script loop statements, not to expensive iteration performed inside operators and builtins. An attacker can submit a single expression such as 1..1000000 | array.size and force large amounts of CPU work even when LoopLimit is set to a very small value...

Exposure of Data Element to Wrong Session

Overview Scriban is a Scriban is a fast, powerful, safe and lightweight scripting language and engine for .NET, which was primarily developed for text templating with a compatibility mode for parsing liquid templates. Today, not only Scriban can be used in text templating scenarios, but also can ...

Exposure of Data Element to Wrong Session

Overview Scriban.Signed is a fast, powerful, safe and lightweight scripting language and engine for .NET, which was primarily developed for text templating with a compatibility mode for parsing liquid templates. Affected versions of this package are vulnerable to Exposure of Data Element to Wrong...

GHSA-5WR9-M6JW-XX44 Scriban: Sandbox escape due to TypedObjectAccessorcache bypassing MemberFilter after TemplateContext reuse

Summary TemplateContext caches type accessors by Type only, but those accessors are built using the current MemberFilter and MemberRenamer. When a TemplateContext is reused and the filter is tightened for a later render, Scriban still reuses the old accessor and continues exposing members that...

Sensitive Information in Resource Not Removed Before Reuse

Overview Scriban is a Scriban is a fast, powerful, safe and lightweight scripting language and engine for .NET, which was primarily developed for text templating with a compatibility mode for parsing liquid templates. Today, not only Scriban can be used in text templating scenarios, but also can ...

Uncontrolled Recursion

Overview Scriban.Signed is a fast, powerful, safe and lightweight scripting language and engine for .NET, which was primarily developed for text templating with a compatibility mode for parsing liquid templates. Affected versions of this package are vulnerable to Uncontrolled Recursion through th...

Uncontrolled Recursion

Overview Scriban is a Scriban is a fast, powerful, safe and lightweight scripting language and engine for .NET, which was primarily developed for text templating with a compatibility mode for parsing liquid templates. Today, not only Scriban can be used in text templating scenarios, but also can ...

Scriban has a Stack Overflow via Nested Array Initializers That Bypass the ExpressionDepthLimit Fix

Summary StackOverflowException via nested array initializers bypasses ExpressionDepthLimit fix GHSA-wgh7-7m3c-fx25 Details The recent fix for GHSA-wgh7-7m3c-fx25 uncontrolled recursion in parser added ExpressionDepthLimit defaulting to 250. However, deeply nested array initializers ... recurse...

GHSA-P6Q4-FGR8-VX4P Scriban has a Stack Overflow via Nested Array Initializers That Bypass the ExpressionDepthLimit Fix

Summary StackOverflowException via nested array initializers bypasses ExpressionDepthLimit fix GHSA-wgh7-7m3c-fx25 Details The recent fix for GHSA-wgh7-7m3c-fx25 uncontrolled recursion in parser added ExpressionDepthLimit defaulting to 250. However, deeply nested array initializers ... recurse...

PT-2026-73157

Name of the Vulnerable Software and Affected Versions Scriban versions prior to 7.0.0 Description The software fails to apply the LoopLimit constraint to expensive iterations performed within built-in operators and functions, applying it only to script loop statements. This allows a single...

PT-2026-30293

Summary The LimitToString safety limit default 1MB since commit b5ac4bf can be bypassed to allocate approximately 1GB of memory by exploiting the per-call reset of currentToStringLength in ObjectToString. Each template expression rendered through TemplateContext.WriteSourceSpan, object triggers a...

PT-2026-30295

Summary The built-in string.pad left and string.pad right template functions in Scriban perform no validation on the width parameter, allowing a template expression to allocate arbitrarily large strings in a single call. When Scriban is exposed to untrusted template input — as in the official...

PT-2026-30297

Summary The object.to json builtin function in Scriban performs recursive JSON serialization via an internal WriteValue static local function that has no depth limit, no circular reference detection, and no stack overflow guard. A Scriban template containing a self-referencing object passed to...

PT-2026-30290

Summary TemplateContext caches type accessors by Type only, but those accessors are built using the current MemberFilter and MemberRenamer. When a TemplateContext is reused and the filter is tightened for a later render, Scriban still reuses the old accessor and continues exposing members that...

PT-2026-30291

Summary Scriban's LoopLimit only applies to script loop statements, not to expensive iteration performed inside operators and builtins. An attacker can submit a single expression such as 1..1000000 | array.size and force large amounts of CPU work even when LoopLimit is set to a very small value...

PT-2026-30298

Summary Scriban's expression evaluation contains three distinct code paths that allow an attacker who can supply a template to cause denial of service through unbounded memory allocation or CPU exhaustion. The existing safety controls LimitToString, LoopLimit do not protect these paths, giving...

PT-2026-73158

Name of the Vulnerable Software and Affected Versions Scriban versions prior to 7.0.0 Description Scriban caches TypedObjectAccessor based solely on the type, ignoring changes made to the MemberFilter. This behavior allows reused TemplateContext instances to expose members that were intended to b...

PT-2026-30296

Summary TemplateContext.Reset claims that a TemplateContext can be reused safely on the same thread, but it does not clear CachedTemplates. If an application pools TemplateContext objects and uses an ITemplateLoader that resolves content per request, tenant, or user, a previously authorized inclu...