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CVE-2026-82725: CWE-639 Authorization Bypass Through User-Controlled Key in ash-project ash_phoenix

0
Low
VulnerabilityCVE-2026-82725cvecve-2026-82725cwe-639
Published: 08/31/2026 (08/31/2026, 03:09:25 UTC)
Source: CVE Database V5
Vendor/Project: ash-project
Product: ash_phoenix

Description

Authorization Bypass Through User-Controlled Key vulnerability in ash-project ash_phoenix lets an attacker who controls filter form parameters filter across relationships the resource author marked non-public, turning the returned rows into a boolean oracle over private related data. AshPhoenix.FilterForm resolved every relationship hop in the user-supplied path with Ash.Resource.Info.related/2, which traverses private relationships, and only checked the terminal field for publicity. parse_path_and_field/2 also rewrote a field naming a relationship into an extra path segment, so field=some_private_rel was accepted too. Both path and field come straight from form params, and the resulting ref went to Ash.Query.do_filter/2 without the public-only enforcement of Ash.Filter.parse_input/2. The fix resolves each hop with Ash.Resource.Info.public_relationship/2, rejecting the first non-public hop, and requires the terminal field to be public. This issue affects ash_phoenix: from 0.6.0-rc.1 before 2.3.25.

CVSS v4.0

Score 2.3low

Attack Vector
Network
Attack Complexity
Low
Attack Requirements
Present
Privileges Required
Low
User Interaction
None
Vuln. Confidentiality
Low
Vuln. Integrity
None
Vuln. Availability
None
Subsq. Confidentiality
None
Subsq. Integrity
None
Subsq. Availability
None
CVSS:4.0/AV:N/AC:L/AT:P/PR:L/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N

Affected software

ash_phoenix
pkg:hex/ash_phoenix
GitHub Actionsmore threats →cve
ash-project/ash_phoenix
pkg:github/ash-project/ash_phoenix
CPE configurations
cpe:2.3:a:ash-project:ash_phoenix:*:*:*:*:*:*:*:*

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Technical Details

Data Version
5.2
Assigner Short Name
EEF
Date Reserved
2026-08-31T00:59:08.960Z
Cvss Version
4.0
State
PUBLISHED
Remediation Level
null

Threat ID: 6a94f72bacd9273b497b1a22

Added to database: 08/31/2026, 03:38:19 UTC

Last updated: 08/31/2026, 03:38:19 UTC

Views: 1

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