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TI-2026-56474 Aliases CVE-2026-81852

AshAdmin ships a hardcoded CSP nonce, allowing nonce-based CSP bypass

Priority LOW 12CWE-330Published · Updated

Key facts

Attack vector
Network
Privileges required
None
User interaction
Active
Attack complexity
Low
Attack requirements
Present
Impact type
—
Confidentiality · integrity · availability
Low · Low · None
Fix status
Fixed

Attack profile from CVSS 4.0 · CNA. Fix status from CNA.

Summary

Use of Insufficiently Random Values vulnerability in ash-project ash_admin ships a hardcoded, publicly known CSP nonce, defeating nonce-based Content-Security-Policy protection. When mounted without :csp_nonce_assign_key, AshAdmin.Router.ash_admin/2 defaulted the img, style, and script nonces to the literal constant ash_admin-Ed55GFnX, which AshAdmin.Layouts wrote verbatim into the nonce attribute of its inline <style> and <script> tags on every response. The value is a compile-time constant published in the repository and is never rotated per request. If an application's CSP script-src allow-lists that documented default, any HTML-injection sink on an admin page can reuse the known nonce to run inline scripts the policy was meant to block. The fix generates a fresh random nonce per request. This issue affects ash_admin: from 0.10.8 before 1.3.1.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.00528 44th percentileScored 2026-11-07
Fix Fixed ash_admin (ash-project): 1.3.1

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation
None
Automatable
No
Technical impact
Partial

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

VendorProductAffected versionsFixed inStatusSource
ash-projectash_admin0.10.8 to before 1.3.11.3.1Patch availableCNA
  • ash_admin Vendorash-project Affected 0.10.8 to before 1.3.1 Fixed in 1.3.1 Patch available CNA

CPE names CNA · 1

CPEVersionsRoleVendor
cpe:2.3:a:ash-project:ash_admin:*:*:*:*:*:*:*:*———
  • cpe:2.3:a:ash-project:ash_admin:*:*:*:*:*:*:*:* Versions — — ·—

Remediation

  • Fix · CNA ash_admin (ash-project) Fixed in 1.3.1

Fixed in the same release

Records fixed by the same vendor advisory or release, as the CNA lists them.

  • Release ·

    ash-project ash_admin 1.3.1

    7 records Highest priority Priority HIGH 4 HIGH, 2 MEDIUM, 1 LOW

    Other records, highest priority first

    • TI-2026-57010 Path traversal in AshAdmin file uploads via unsanitized client filenamePriority HIGH 75
    • TI-2026-54208 Stored XSS in AshAdmin relationship typeahead via unescaped label_field contentPriority HIGH 72
    • TI-2026-57040 AshAdmin LiveView events intern atoms from client input, exhausting the atom table (node DoS)Priority HIGH 69
    Show all 7 records →

Timeline

  1. 2026-10-02 Threatist record created from CVE-2026-81852

References

Patch 1

Advisory 1

Other 2

  • TI-2026-56298 Query-complexity limit bypass via first/last pagination arguments in AshGraphql enables denial of service CVSS 4.0HIGH 8.7
  • TI-2026-52572 Unbounded atom creation from client-supplied RPC field names in AshTypescript field formatter CVSS 4.0HIGH 8.7
  • TI-2026-57010 Path traversal in AshAdmin file uploads via unsanitized client filename CVSS 4.0HIGH 8.3
  • TI-2026-26840 Ash Framework: Ash.Type.Module.cast_input/2 atom exhaustion via unchecked Module.concat allows BEAM VM crash CVSS 4.0HIGH 8.2
  • TI-2026-54252 EEx template evaluation of prompt content in AshAi enables remote code execution CVSS 4.0HIGH 8.9
  • TI-2026-54208 Stored XSS in AshAdmin relationship typeahead via unescaped label_field content CVSS 4.0HIGH 8.4
See all 90 →

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences