EEF-CVE-2026-82748

Source
https://cna.erlef.org/osv/EEF-CVE-2026-82748.html
Import Source
https://cna.erlef.org/osv/EEF-CVE-2026-82748.json
JSON Data
https://api.osv.dev/v1/vulns/EEF-CVE-2026-82748
Aliases
Published
2026-09-01T03:52:01.686Z
Modified
2026-09-01T04:10:41.453108983Z
Severity
  • 2.1 (Low) CVSS_V4 - CVSS:4.0/AV:L/AC:L/AT:P/PR:N/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N CVSS Calculator
Summary
Ash.Actions.Aggregate authorizes an aggregate under one action but computes it under another
Details

Summary

Incorrect Authorization vulnerability in ash-project ash authorizes an aggregate under one read action while computing it under another, so an aggregate can run with policies that do not match the action it was authorized against.

Ash.Actions.Aggregate groups aggregates by their {authorize?, read_action} and authorizes each group under that read action, but when building the data query it selected the action as opts[:action] || read_action || <primary read> (lib/ash/actions/aggregate.ex). When a caller passed an :action option, the aggregate query ran under that action while authorization had been computed for the group's own read_action. If the run action's read policies are more permissive than the authorized one, the aggregate (a count or sum) is computed over records the authorized action's policies would have excluded, disclosing information about data the actor cannot read. The fix runs the aggregate under the same read_action it is authorized against.

This issue affects ash: from 3.5.13 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
3.5.13
Fixed
3.32.2

Affected versions

3.*
3.5.13
3.5.14
3.5.15
3.5.16
3.5.17
3.5.18
3.5.19
3.5.20
3.5.21
3.5.22
3.5.23
3.5.24
3.5.25
3.5.26
3.5.27
3.5.28
3.5.29
3.5.30
3.5.31
3.5.32
3.5.33
3.5.34
3.5.35
3.5.36
3.5.37
3.5.38
3.5.39
3.5.40
3.5.41
3.5.42
3.5.43
3.6.0
3.6.1
3.6.2
3.6.3
3.7.0
3.7.1
3.7.2
3.7.3
3.7.4
3.7.5
3.7.6
3.8.0
3.9.0
3.10.0
3.10.1
3.11.0
3.11.1
3.11.2
3.11.3
3.12.0
3.13.0
3.13.1
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-2026-82748.json"

Git / github.com/ash-project/ash

Affected ranges

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

Affected versions

v3.*
v3.10.0
v3.10.1
v3.11.0
v3.11.1
v3.11.2
v3.11.3
v3.12.0
v3.13.0
v3.13.1
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
v3.5.13
v3.5.14
v3.5.15
v3.5.16
v3.5.17
v3.5.18
v3.5.19
v3.5.21
v3.5.22
v3.5.23
v3.5.24
v3.5.25
v3.5.26
v3.5.27
v3.5.28
v3.5.29
v3.5.30
v3.5.31
v3.5.32
v3.5.33
v3.5.35
v3.5.36
v3.5.37
v3.5.38
v3.5.39
v3.5.41
v3.5.42
v3.5.43
v3.6.0
v3.6.1
v3.6.2
v3.6.3
v3.7.0
v3.7.1
v3.7.2
v3.7.3
v3.7.4
v3.7.5
v3.7.6
v3.8.0
v3.9.0

Database specific

source
"https://cna.erlef.org/osv/EEF-CVE-2026-82748.json"