CVE-2026-115627

Published: Ott 25, 2026 Last Modified: Ott 25, 2026
ExploitDB:
Other exploit source:
Google Dorks:
MEDIUM 6,0
Source: 6b3ad84c-e1a6-4bf7-a703-f496b71e49db
Attack Vector: network
Attack Complexity: low
Privileges Required: low
User Interaction: none
Confidentiality: N/A
Integrity: N/A
Availability: N/A

Description

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.

863

Incorrect Authorization

Incomplete
Common Consequences
Security Scopes Affected:
Confidentiality Integrity Access Control Availability
Potential Impacts:
Read Application Data Read Files Or Directories Modify Application Data Modify Files Or Directories Gain Privileges Or Assume Identity Bypass Protection Mechanism Execute Unauthorized Code Or Commands Dos: Crash, Exit, Or Restart Dos: Resource Consumption (Cpu) Dos: Resource Consumption (Memory) Dos: Resource Consumption (Other)
Applicable Platforms
Technologies: Web Server, Database Server, Not Technology-Specific
View CWE Details
https://cna.erlef.org/cves/CVE-2026-115627.html
https://github.com/ash-project/ash_postgres/commit/7115bec58678f13b1ac2fb4822a0…
https://github.com/ash-project/ash_postgres/commit/8c25c945c39a45299193fe70b09f…
https://github.com/ash-project/ash/security/advisories/GHSA-gr2r-f49c-9gm2
https://osv.dev/vulnerability/EEF-CVE-2026-115627