CVE-2026-115627

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.

CVSS

No CVSS.

References

Link	Resource
https://cna.erlef.org/cves/CVE-2026-115627.html
https://github.com/ash-project/ash/security/advisories/GHSA-gr2r-f49c-9gm2
https://github.com/ash-project/ash_postgres/commit/7115bec58678f13b1ac2fb4822a0ba1aea9dbec5
https://github.com/ash-project/ash_postgres/commit/8c25c945c39a45299193fe70b09fc2fa2aacac7b
https://osv.dev/vulnerability/EEF-CVE-2026-115627

Configurations

No configuration.

History

25 Oct 2026, 20:16

Type	Values Removed	Values Added
New CVE

Information

Published : 2026-10-25 20:16

Updated : 2026-10-26 15:16

NVD link : CVE-2026-115627

Mitre link : CVE-2026-115627

CVE.ORG link : CVE-2026-115627

JSON object : View

Products Affected

No product.

CWE

CWE-863

Incorrect Authorization

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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.\n\nThis issue affects ash_postgres: from 0.38.0 before 2.15.2."}], "lastModified": "2026-10-26T15:16:39.097", "sourceIdentifier": "6b3ad84c-e1a6-4bf7-a703-f496b71e49db"}