Script execution via hardcoded CSP nonce
Published Aug 31, 2026 · Updated Aug 31, 2026
CSP bypass in Ash Framework AshAdmin 0.10.8 through 1.3.0 allows remote attackers to run inline scripts via a known nonce. AshAdmin.Router.ash_admin/2 defaults all CSP nonce types to the constant ash_admin-Ed55GFnX, and AshAdmin.Layouts copies it into inline style and script tags on every response. Exploitation requires an application to allow-list that default and a separate HTML-injection sink on an admin page; the bypass enables script execution in an administrator's browser.
Summary
What happened
CSP bypass in Ash Framework AshAdmin 0.10.8 through 1.3.0 allows remote attackers to run inline scripts via a known nonce. AshAdmin.Router.ash_admin/2 defaults all CSP nonce types to the constant ash_admin-Ed55GFnX, and AshAdmin.Layouts copies it into inline style and script tags on every response. Exploitation requires an application to allow-list that default and a separate HTML-injection sink on an admin page; the bypass enables script execution in an administrator's browser.
The record
- CVE
- CVE-2026-81852
- Published
- Aug 31, 2026
- Updated
- Aug 31, 2026
- Vendor
- Ash Framework
- Product
- AshAdmin
- Classifications
- CWE-330
- Attack vector
- network
- Privileges
- unauthenticated
Timeline
How it unfolded
- Aug 31, 2026CVE publishedPublication date reported by the CVE source.
- Aug 31, 2026Record updatedLatest update available in the CVE record.
Exploitability
Present is not the same as exploitable
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Is a vulnerable build present?
Compare these published version ranges with your installed build and any vendor patches.
- Affected versionversion=0.10.8 <1.3.1
- Affected versionversion=99b8daed7b2f79d82fcd9e89338d41b0e1564aa7 <bc7a1cdf873b16971a8efec35d085f8bb706314f
What conditions does exploitation require?
What is affected?
Published CVSS scores
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Attacks
What attackers are doing with it
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Weakness, pattern, technique
Public exploit references
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Technologies
Your stack
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Your stack
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