EEF-CVE-2026-115627

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Source
https://cna.erlef.org/osv/EEF-CVE-2026-115627.html
Import Source
https://cna.erlef.org/osv/EEF-CVE-2026-115627.json
JSON Data
https://api.osv.dev/v1/vulns/EEF-CVE-2026-115627
Aliases
  • CVE-2026-115627
  • GHSA-gr2r-f49c-9gm2
Published
2026-10-25T19:49:50Z
Modified
2026-10-25T20:11:06Z
Severity
  • 6.0 (Medium) CVSS_V4 - CVSS:4.0/AV:N/AC:L/AT:P/PR:L/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N CVSS Calculator
Summary
AshPostgres ignores attribute multitenancy on the join resource when loading many_to_many and through relationships, returning records related through other tenants' rows
Details

Summary

Incorrect Authorization vulnerability in ash-project ash_postgres allows a user to load destination records linked to a source record only through another tenant's join rows.

When a many_to_many relationship, or a through relationship, is loaded with a lateral join (for example with a per-record limit or sort), AshPostgres.DataLayer builds the query for the join resource, and for each resource along a through path, in lateral_join_query/3 and through_step_queries/4 without running that resource's read action, which is where attribute multitenancy is applied. When those resources use strategy :attribute multitenancy, rows belonging to other tenants were joined, so the load returned destination records that the caller's tenant is not related to.

This issue affects ash_postgres: from 0.38.0 before 2.15.2.

Impact

A user of one tenant loading a many_to_many or through relationship receives destination records linked only through another tenant's join rows.

Configurations

Reachable when the join resource of a many_to_many relationship, or a resource along a through path, uses attribute multitenancy and holds rows from several tenants, and the relationship is loaded with a lateral join (for example with a limit, offset or sort on the relationship).

Database specific 
{
    "capec_ids":  [
        "CAPEC-1"
    ],
    "cpe_ids":  [
        "cpe:2.3:a:ash-project:ash_postgres:*:*:*:*:*:*:*:*"
    ],
    "cwe_ids":  [
        "CWE-863"
    ]
}
References
Credits
    • Will Townsend - FINDER
    • Will Townsend - REPORTER
    • Zach Daniel / Ash Project - REMEDIATION_DEVELOPER

Affected packages

Hex / ash_postgres

Package

Name
ash_postgres
Purl
pkg:hex/ash_postgres

Affected ranges

Type
SEMVER
Events
Introduced
0.38.0
Fixed
2.15.2

Affected versions

0.*
0.38.0
0.38.1
0.38.2
0.38.3
0.38.4
0.38.5
0.38.6
0.38.7
0.38.8
0.38.9
0.38.10
0.38.11
0.39.0-rc0
0.40.0-rc1
0.40.0-rc2
0.40.0-rc3
0.40.0-rc4
0.40.0-rc5
0.40.1
0.40.2
0.40.3
0.40.4
0.40.5
0.40.6
0.40.7
0.40.8
0.40.9
0.40.10
0.40.11
0.41.0-rc.0
0.41.0-rc.1
0.41.0-rc.2
0.41.0-rc.3
0.41.0-rc.4
0.41.0-rc.5
0.41.0-rc.6
0.41.0-rc.7
0.41.0-rc.8
0.41.0-rc.9
0.41.0-rc0
0.41.1
0.41.2
0.41.3
0.41.4
0.41.5
0.41.6
0.41.7
0.42.0-rc.0
0.42.0-rc.1
0.42.0-rc.3
0.42.0-rc.4
0.42.0-rc.5
0.42.0-rc.6
0.42.0-rc.7
0.43.0
1.*
1.0.0-pre.0
1.0.0-pre.1
1.0.0-pre.2
1.0.0-pre.3
1.0.0-rc.0
1.0.0-rc.1
1.0.0-rc.2
1.0.0-rc.3
1.0.0-rc.4
1.0.0-rc.5
1.0.0-rc.6
1.0.0-rc.7
1.0.0-rc.8
1.0.0-rc.9
1.0.0
1.1.0
1.1.1
1.1.2
1.1.3
1.2.0-rc.0
1.2.0-rc.1
1.2.0
1.2.1
1.2.2
1.2.3
1.2.4
1.2.5
1.2.6
1.3.0-rc.0
1.3.0-rc.2
1.3.0-rc.3
1.3.0-rc.4
1.3.0
1.3.1
1.3.2
1.3.3
1.3.4
1.3.5
1.3.6
1.3.8
1.3.9
1.3.10
1.3.11
1.3.12
1.3.14
1.3.15
1.3.16
1.3.17
1.3.18
1.3.19
1.3.20
1.3.21
1.3.22
1.3.23
1.3.24
1.3.25
1.3.26
1.3.28
1.3.29
1.3.30
1.3.31
1.3.32
1.3.33
1.3.34
1.3.35
1.3.36
1.3.37
1.3.38
1.3.39
1.3.40
1.3.41
1.3.42
1.3.43
1.3.44
1.3.45
1.3.46
1.3.47
1.3.48
1.3.49
1.3.50
1.3.51
1.3.52
1.3.53
1.3.54
1.3.55
1.3.56
1.3.58
1.3.59
1.3.60
1.3.61
1.3.62
1.3.63
1.3.64
1.3.65
1.3.66
1.3.67
1.3.68
1.4.0
1.5.0
1.5.1
1.5.2
1.5.3
1.5.4
1.5.5
1.5.6
1.5.7
1.5.8
1.5.9
1.5.10
1.5.11
1.5.12
1.5.13
1.5.14
1.5.15
1.5.16
1.5.17
1.5.18
1.5.19
1.5.20
1.5.21
1.5.22
1.5.23
1.5.24
1.5.25
1.5.26
1.5.27
1.5.28
1.5.29
1.5.30
2.*
2.0.0-rc.0
2.0.0-rc.1
2.0.0-rc.2
2.0.0-rc.3
2.0.0-rc.4
2.0.0-rc.5
2.0.0-rc.6
2.0.0-rc.7
2.0.0-rc.8
2.0.0-rc.9
2.0.0-rc.10
2.0.0-rc.11
2.0.0-rc.12
2.0.0-rc.13
2.0.0-rc.14
2.0.0-rc.15
2.0.0
2.0.1
2.0.2
2.0.3
2.0.4
2.0.5
2.0.6
2.0.7
2.0.8
2.0.9
2.0.10
2.0.11
2.0.12
2.1.0
2.1.1
2.1.2
2.1.3
2.1.4
2.1.5
2.1.6
2.1.8
2.1.9
2.1.10
2.1.11
2.1.12
2.1.13
2.1.14
2.1.15
2.1.17
2.1.18
2.1.19
2.2.0
2.2.1
2.2.2
2.2.3
2.2.4
2.2.5
2.3.0
2.3.1
2.4.0
2.4.1
2.4.2
2.4.3
2.4.4
2.4.5
2.4.6
2.4.7
2.4.8
2.4.9
2.4.10
2.4.11
2.4.12
2.4.13
2.4.14
2.4.15
2.4.16
2.4.17
2.4.18
2.4.19
2.4.20
2.4.21
2.5.0
2.5.1
2.5.2
2.5.3
2.5.4
2.5.5
2.5.6
2.5.7
2.5.8
2.5.9
2.5.10
2.5.11
2.5.12
2.5.13
2.5.14
2.5.15
2.5.16
2.5.17
2.5.18
2.5.19
2.5.20
2.5.21
2.5.22
2.6.0
2.6.1
2.6.2
2.6.3
2.6.4
2.6.5
2.6.6
2.6.7
2.6.8
2.6.9
2.6.10
2.6.11
2.6.12
2.6.13
2.6.14
2.6.15
2.6.16
2.6.17
2.6.18
2.6.19
2.6.20
2.6.21
2.6.22
2.6.23
2.6.24
2.6.25
2.6.26
2.6.27
2.6.28
2.6.29
2.6.30
2.6.31
2.6.32
2.7.0
2.8.0
2.9.0
2.9.1
2.10.0
2.11.0
2.12.0
2.13.0
2.13.1
2.14.0
2.14.1
2.14.2
2.14.3
2.14.4
2.14.5
2.15.0
2.15.1

Database specific

source 
"https://cna.erlef.org/osv/EEF-CVE-2026-115627.json"

Git / github.com/ash-project/ash_postgres

Affected ranges

Type
GIT
Repo
https://github.com/ash-project/ash_postgres
Events
Introduced
7115bec58678f13b1ac2fb4822a0ba1aea9dbec5
Fixed
8c25c945c39a45299193fe70b09fc2fa2aacac7b

Affected versions

v0.*
v0.38.0
v0.38.1
v0.38.10
v0.38.11
v0.38.2
v0.38.3
v0.38.4
v0.38.5
v0.38.6
v0.38.7
v0.38.8
v0.38.9
v0.39.0-rc0
v0.40.0-rc1
v0.40.0-rc2
v0.40.0-rc3
v0.40.0-rc4
v0.40.0-rc5
v0.40.1
v0.40.10
v0.40.11
v0.40.2
v0.40.3
v0.40.4
v0.40.5
v0.40.6
v0.40.7
v0.40.8
v0.40.9
v0.41.0-rc.1
v0.41.0-rc.2
v0.41.0-rc.3
v0.41.0-rc.4
v0.41.0-rc.5
v0.41.0-rc.6
v0.41.0-rc.7
v0.41.0-rc.8
v0.41.0-rc.9
v0.41.0-rc0
v0.41.1
v0.41.2
v0.41.3
v0.41.4
v0.41.5
v0.41.6
v0.41.7
v0.42.0-rc.0
v0.42.0-rc.1
v0.42.0-rc.2
v0.42.0-rc.3
v0.42.0-rc.4
v0.42.0-rc.5
v0.42.0-rc.6
v0.42.0-rc.7
v0.43.0
v1.*
v1.0.0
v1.0.0-rc.0
v1.0.0-rc.1
v1.0.0-rc.2
v1.0.0-rc.3
v1.0.0-rc.4
v1.0.0-rc.5
v1.0.0-rc.6
v1.0.0-rc.7
v1.0.0-rc.8
v1.0.0-rc.9
v1.1.0
v1.1.1
v1.1.2
v1.1.3
v1.2.0
v1.2.0-rc.0
v1.2.0-rc.1
v1.2.1
v1.2.2
v1.2.3
v1.2.4
v1.2.5
v1.2.6
v1.3.0
v1.3.0-rc.0
v1.3.0-rc.1
v1.3.0-rc.2
v1.3.0-rc.3
v1.3.0-rc.4
v1.3.1
v1.3.10
v1.3.11
v1.3.12
v1.3.13
v1.3.14
v1.3.15
v1.3.16
v1.3.17
v1.3.18
v1.3.19
v1.3.2
v1.3.20
v1.3.21
v1.3.22
v1.3.23
v1.3.24
v1.3.25
v1.3.26
v1.3.27
v1.3.28
v1.3.29
v1.3.3
v1.3.30
v1.3.31
v1.3.32
v1.3.33
v1.3.34
v1.3.35
v1.3.36
v1.3.37
v1.3.38
v1.3.39
v1.3.4
v1.3.40
v1.3.41
v1.3.42
v1.3.43
v1.3.44
v1.3.45
v1.3.46
v1.3.47
v1.3.48
v1.3.49
v1.3.5
v1.3.50
v1.3.51
v1.3.53
v1.3.54
v1.3.55
v1.3.56
v1.3.57
v1.3.58
v1.3.59
v1.3.6
v1.3.60
v1.3.61
v1.3.62
v1.3.63
v1.3.64
v1.3.65
v1.3.66
v1.3.67
v1.3.68
v1.3.8
v1.3.9
v1.4.0
v1.5.0
v1.5.1
v1.5.10
v1.5.11
v1.5.12
v1.5.13
v1.5.14
v1.5.15
v1.5.16
v1.5.17
v1.5.19
v1.5.2
v1.5.20
v1.5.21
v1.5.22
v1.5.3
v1.5.4
v1.5.5
v1.5.6
v1.5.7
v1.5.8
v1.5.9
v2.*
v2.0.0-rc.0
v2.0.0-rc.1
v2.0.0-rc.10
v2.0.0-rc.11
v2.0.0-rc.12
v2.0.0-rc.13
v2.0.0-rc.14
v2.0.0-rc.15
v2.0.0-rc.2
v2.0.0-rc.3
v2.0.0-rc.4
v2.0.0-rc.5
v2.0.0-rc.6
v2.0.0-rc.7
v2.0.0-rc.8
v2.0.0-rc.9
v2.0.10
v2.0.11
v2.0.12
v2.0.2
v2.0.3
v2.0.4
v2.0.7
v2.0.8
v2.0.9
v2.1.1
v2.1.10
v2.1.11
v2.1.12
v2.1.13
v2.1.14
v2.1.15
v2.1.17
v2.1.18
v2.1.19
v2.1.2
v2.1.3
v2.1.4
v2.1.5
v2.1.6
v2.1.8
v2.1.9
v2.10.0
v2.11.0
v2.12.0
v2.13.0
v2.13.1
v2.14.0
v2.14.1
v2.14.2
v2.14.3
v2.14.4
v2.14.5
v2.15.0
v2.15.1
v2.2.0
v2.2.1
v2.2.2
v2.2.3
v2.2.4
v2.2.5
v2.3.0
v2.3.1
v2.4.0
v2.4.1
v2.4.10
v2.4.11
v2.4.12
v2.4.13
v2.4.14
v2.4.16
v2.4.17
v2.4.18
v2.4.19
v2.4.2
v2.4.20
v2.4.21
v2.4.22
v2.4.3
v2.4.4
v2.4.5
v2.4.6
v2.4.7
v2.4.8
v2.4.9
v2.5.0
v2.5.1
v2.5.10
v2.5.11
v2.5.12
v2.5.13
v2.5.14
v2.5.15
v2.5.16
v2.5.17
v2.5.18
v2.5.19
v2.5.2
v2.5.20
v2.5.21
v2.5.22
v2.5.3
v2.5.4
v2.5.5
v2.5.6
v2.5.7
v2.5.8
v2.5.9
v2.6.0
v2.6.1
v2.6.10
v2.6.11
v2.6.12
v2.6.13
v2.6.14
v2.6.15
v2.6.16
v2.6.17
v2.6.18
v2.6.19
v2.6.2
v2.6.20
v2.6.21
v2.6.22
v2.6.23
v2.6.24
v2.6.25
v2.6.26
v2.6.27
v2.6.28
v2.6.29
v2.6.3
v2.6.30
v2.6.31
v2.6.32
v2.6.4
v2.6.5
v2.6.6
v2.6.7
v2.6.8
v2.6.9
v2.7.0
v2.8.0
v2.9.0
v2.9.1

Database specific

source 
"https://cna.erlef.org/osv/EEF-CVE-2026-115627.json"