Exposure of Data Element to Wrong Session Affecting scriban.signed package, versions [,7.0.0)
Threat Intelligence
Snyk has a proof-of-concept or detailed explanation of how to exploit this vulnerability.
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- published26 Mar 2026
- disclosed24 Mar 2026
- creditErdembileg Ariunbold
Introduced: 24 Mar 2026
New CVE NOT AVAILABLE CWE-488 (opens in a new tab)How to fix?
Upgrade Scriban.Signed to version 7.0.0 or higher.
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 Session through the TemplateContext instance. An attacker can gain unauthorized access to hidden or sensitive object members by reusing a context where a previously permissive member filter was applied, even after the filter has been tightened.
Note: This is only exploitable if the same TemplateContext instance is reused with a more restrictive MemberFilter after a more permissive one was previously set.