EEF-CVE-2026-82749

Source
https://cna.erlef.org/osv/EEF-CVE-2026-82749.html
Import Source
https://cna.erlef.org/osv/EEF-CVE-2026-82749.json
JSON Data
https://api.osv.dev/v1/vulns/EEF-CVE-2026-82749
Aliases
Published
2026-09-01T03:54:12.716Z
Modified
2026-09-01T04:10:41.389467316Z
Severity
  • 5.9 (Medium) CVSS_V4 - CVSS:4.0/AV:L/AC:L/AT:P/PR:N/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N CVSS Calculator
Summary
Ash relationship parent(...) filter degrades to an IS NULL match when the parent field is unresolved, leaking scoped records
Details

Summary

Incorrect Authorization vulnerability in ash-project ash widens a relationship's parent(...) scoping filter to match unintended records when the referenced parent field cannot be resolved.

Loading a relationship whose filter references parent(...) resolves that expression against the parent record. resolve_parent_in_filter/3 (lib/ash/actions/read/relationships.ex) resolved an unresolvable parent reference (for example when the referenced field was not selected on the source query) to nil rather than failing. A scoping predicate such as org_id == parent(org_id) then becomes an IS NULL match, and a guard like is_nil(parent(org_id)) or org_id == parent(org_id) activates its unrestricted branch, so the relationship returns records the scope was meant to exclude. The fix fails the read with an error when a parent(...) reference cannot be resolved, instead of defaulting to nil.

This issue affects ash: from 3.13.2 before 3.32.2.

Database specific
{
    "cpe_ids": [
        "cpe:2.3:a:ash-project:ash:*:*:*:*:*:*:*:*"
    ],
    "capec_ids": [
        "CAPEC-1"
    ],
    "cwe_ids": [
        "CWE-863"
    ]
}
References
Credits
    • Jonatan Männchen / EEF - COORDINATOR
    • Zach Daniel / Ash Project - REMEDIATION_DEVELOPER
    • Peter Ullrich - REPORTER
    • Peter Ullrich - FINDER

Affected packages

Hex / ash

Package

Name
ash
Purl
pkg:hex/ash

Affected ranges

Type
SEMVER
Events
Introduced
3.13.2
Fixed
3.32.2

Affected versions

3.*
3.13.2
3.14.0
3.14.1
3.15.0
3.16.0
3.17.0
3.17.1
3.18.0
3.19.0
3.19.1
3.19.2
3.19.3
3.20.0
3.21.0
3.21.1
3.21.2
3.21.3
3.22.0
3.22.1
3.22.2
3.23.0
3.23.1
3.24.0
3.24.1
3.24.2
3.24.3
3.24.4
3.24.5
3.24.6
3.24.7
3.25.0
3.25.1
3.25.2
3.26.0
3.27.0
3.27.1
3.27.2
3.27.3
3.27.4
3.27.5
3.27.6
3.27.7
3.27.8
3.28.0
3.29.0
3.29.1
3.29.2
3.29.3
3.30.0
3.30.1
3.31.0
3.31.1
3.31.2
3.31.3
3.32.0
3.32.1

Database specific

source
"https://cna.erlef.org/osv/EEF-CVE-2026-82749.json"

Git / github.com/ash-project/ash

Affected ranges

Type
GIT
Repo
https://github.com/ash-project/ash
Events

Affected versions

v3.*
v3.13.2
v3.14.0
v3.14.1
v3.15.0
v3.16.0
v3.17.0
v3.17.1
v3.18.0
v3.19.0
v3.19.1
v3.19.2
v3.19.3
v3.20.0
v3.21.0
v3.21.1
v3.21.2
v3.21.3
v3.22.0
v3.22.1
v3.22.2
v3.23.0
v3.23.1
v3.24.0
v3.24.1
v3.24.2
v3.24.3
v3.24.4
v3.24.5
v3.24.6
v3.24.7
v3.25.0
v3.25.1
v3.25.2
v3.26.0
v3.27.0
v3.27.1
v3.27.2
v3.27.3
v3.27.4
v3.27.6
v3.27.7
v3.27.8
v3.28.0
v3.29.0
v3.29.1
v3.29.2
v3.29.3
v3.30.0
v3.30.1
v3.31.0
v3.31.1
v3.31.2
v3.31.3
v3.32.1

Database specific

source
"https://cna.erlef.org/osv/EEF-CVE-2026-82749.json"