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TI-2026-57010 Aliases CVE-2026-82673

Path traversal in AshAdmin file uploads via unsanitized client filename

Priority HIGH 75CWE-22Published · Updated

Key facts

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

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

Summary

Improper Limitation of a Pathname to a Restricted Directory (Path Traversal) vulnerability in ash-project ash_admin allows writing attacker-controlled bytes to arbitrary paths on the server. AshAdmin.Components.Resource.Form.consume_file_uploads/1 builds the destination as Path.join([tmp_dir, entry.client_name]) and writes it with File.cp!/2. entry.client_name is the browser-supplied filename and is not sanitized, and Path.join/1 does not normalize ... An upload named ../../../../var/www/app/priv/static/x.png therefore escapes the random temp directory and lands anywhere the BEAM user can write, enabling arbitrary file write and potentially remote code execution by overwriting application assets, configuration, or cron/ssh files. The only guard is an extension allowlist defaulting to :any that checks only the extension. The fix strips path components with Path.basename/1 before joining. This issue affects ash_admin: from 0.13.7 before 1.3.1.

Why it matters now

Exploitation Proof of concept CISA SSVC · not in CISA KEV
EPSS 0.00786 56th percentileScored 2026-11-07
Fix Fixed ash_admin (ash-project): 1.3.1

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation
Poc
Automatable
Yes
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_admin0.13.7 to before 1.3.11.3.1Patch availableCNA
  • ash_admin Vendorash-project Affected 0.13.7 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-2026-54208 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
    • TI-2026-53032 AshAdmin cookie reader matches names by substring, enabling actor/session shadowing from a sibling subdomainPriority HIGH 69
    Show all 7 records →

Timeline

  1. 2026-10-02 Threatist record created from CVE-2026-82673

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-2026-26840 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
  • TI-2026-56295 Unhandled KeyError in AshGraphql relay node resolution crashes queries via an unknown type segment CVSS 4.0MEDIUM 6.9
See all 90 →

Sources

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