CVE-2026-82673Public exploitNetwork attack vectorHinoki check available

Arbitrary file write via unsanitized upload filename

Published Aug 31, 2026 · Updated Aug 31, 2026

Path traversal in AshAdmin 0.13.7 through 1.3.0 allows remote authenticated users to write files via a crafted upload filename. AshAdmin.Components.Resource.Form.consume_file_uploads/1 joins the browser-supplied entry.client_name to a temporary directory without removing path components, then copies the uploaded bytes to that path. Access to an AshAdmin form exposing a file-upload field is required, and writes are limited to paths writable by the BEAM process.

CVSS severity8.3
High
EPSS probability0.59%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkAvailable
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Summary

What happened

Path traversal in AshAdmin 0.13.7 through 1.3.0 allows remote authenticated users to write files via a crafted upload filename. AshAdmin.Components.Resource.Form.consume_file_uploads/1 joins the browser-supplied entry.client_name to a temporary directory without removing path components, then copies the uploaded bytes to that path. Access to an AshAdmin form exposing a file-upload field is required, and writes are limited to paths writable by the BEAM process.

The record

CVE
CVE-2026-82673
Published
Aug 31, 2026
Updated
Aug 31, 2026
Vendor
Ash Framework
Product
AshAdmin
Classifications
CWE-22, CAPEC-126, T1190
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. Aug 31, 2026CVE publishedPublication date reported by the CVE source.
  2. 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.

  1. Affected versionversion=0.13.7 <1.3.1
  2. Affected versionversion=e8f496b6a064ad67dc1cd30433e5921d2192d254 <4bb41cb697f3d9be58462d727aed75aba76efc82

What conditions does exploitation require?

Attack vectornetwork
Required privilegesauthenticated

What is affected?

Ash Framework · AshAdminversion=0.13.7 <1.3.1; version=e8f496b6a064ad67dc1cd30433e5921d2192d254 <4bb41cb697f3d9be58462d727aed75aba76efc82

Published CVSS scores

8.3GitHub Security AdvisoryCVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:H/VA:N/SC:N/SI:H/SA:N

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitPublished

Weakness, pattern, technique

CWE-22Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')
CAPEC-126Path Traversal
T1190Exploit Public-Facing Application

Public exploit references

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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