EEF-CVE-2026-82726 AshPhoenix get_subdomain maps a crafted or differently-cased Host header to an arbitrary tenant

Summary Permissive Regular Expression vulnerability in ash-project ashphoenix lets a remote client select the tenant an Ash application uses, or degrade the request, by sending a crafted Host header. AshPhoenix.Helpers.getsubdomain/2 stripped the root domain with String.replacehost, r/.?roothost/...

CVE-2026-80223

Incorrect Authorization vulnerability in ash-project ashgraphql allows an authenticated subscriber in one tenant to receive another tenant's records over GraphQL subscriptions. The subscription resolver in AshGraphql.Graphql.Resolver authorizes each notification payload in memory: its fast path...

CVE-2026-80223 Cross-tenant subscription disclosure in AshGraphql authorizes notifications in memory without a tenant-scoped read

Incorrect Authorization vulnerability in ash-project ashgraphql allows an authenticated subscriber in one tenant to receive another tenant's records over GraphQL subscriptions. The subscription resolver in AshGraphql.Graphql.Resolver authorizes each notification payload in memory: its fast path...

CVE-2026-80223 Cross-tenant subscription disclosure in AshGraphql authorizes notifications in memory without a tenant-scoped read

Incorrect Authorization vulnerability in ash-project ashgraphql allows an authenticated subscriber in one tenant to receive another tenant's records over GraphQL subscriptions. The subscription resolver in AshGraphql.Graphql.Resolver authorizes each notification payload in memory: its fast path...

EEF-CVE-2026-78699 rename_tenant returns :ok on a failed rename, enabling cross-tenant access in AshPostgres

Summary Unchecked Return Value vulnerability in ash-project ashpostgres allows a user who can drive a tenant rename to a name that collides with an existing tenant's schema to have their tenant record repointed at that other tenant's live schema, gaining access to its data...

CVE-2026-81318

Incorrect Authorization vulnerability in ash-project ashsql allows a caller in a schema-based multitenant application to receive aggregate values computed from another tenant's rows. When an aggregate is computed over a distinct query, AshSql.AggregateQuery.addsingleaggs/5 rebuilds the outer quer...

CVE-2026-81318 Distinct-query aggregate drops the tenant schema prefix, leaking across tenants in AshSql

Incorrect Authorization vulnerability in ash-project ashsql allows a caller in a schema-based multitenant application to receive aggregate values computed from another tenant's rows. When an aggregate is computed over a distinct query, AshSql.AggregateQuery.addsingleaggs/5 rebuilds the outer quer...

CVE-2026-81318 Distinct-query aggregate drops the tenant schema prefix, leaking across tenants in AshSql

Incorrect Authorization vulnerability in ash-project ashsql allows a caller in a schema-based multitenant application to receive aggregate values computed from another tenant's rows. When an aggregate is computed over a distinct query, AshSql.AggregateQuery.addsingleaggs/5 rebuilds the outer quer...

CVE-2026-81318

ash-project ash_sql (an Elixir SQL adapter for the Ash framework) contains an incorrect authorization flaw in AshSql.AggregateQuery.add_single_aggs/5. When computing an aggregate over a distinct query , the outer query is rebuilt from query.from.source alone, dropping the query.prefix / query.fro...

EEF-CVE-2026-81318 Distinct-query aggregate drops the tenant schema prefix, leaking across tenants in AshSql

Summary Incorrect Authorization vulnerability in ash-project ashsql allows a caller in a schema-based multitenant application to receive aggregate values computed from another tenant's rows. When an aggregate is computed over a distinct query, AshSql.AggregateQuery.addsingleaggs/5 rebuilds the...

CVE-2026-81318: Incorrect Authorization

Incorrect Authorization vulnerability in ash-project ashsql allows a caller in a schema-based multitenant application to receive aggregate values computed from another tenant's rows. When an aggregate is computed over a distinct query, AshSql.AggregateQuery.addsingleaggs/5 rebuilds the outer quer...

PT-2026-83585

Summary Unchecked Return Value vulnerability in ash-project ash postgres allows a user who can drive a tenant rename to a name that collides with an existing tenant's schema to have their tenant record repointed at that other tenant's live schema, gaining access to its data...

PT-2026-83630

Name of the Vulnerable Software and Affected Versions ash graphql versions 1.4.0 through 1.10.9 Description An incorrect authorization issue exists in the subscription resolver within AshGraphql.Graphql.Resolver. This allows an authenticated subscriber in one tenant to receive records belonging t...

This Week in Spring - August 18th, 2026

Hi, Spring fans! Welcome back to another edition of This Week in Spring. In my latest video, I dive into how to bake multitenancy into a system using Spring Security, OAuth, and a fantastic third-party project called Arconia. On that note, Arconia also shipped a fresh release that folds in severa...

PYSEC-2026-2750 Open WebUI: RAG ACL Bypass in Milvus Multitenancy Mode

RAG ACL Bypass in Milvus Multitenancy Mode Summary This is a bypass of the fix for: - GHSA-h36f-rqpx-j5wx - CVE-2026-44560 - "Unauthorized File and Knowledge Base Content Access via RAG Vector Search" Open WebUI added collection-level ACL checks, but the patch can still be bypassed when Milvus...

Open WebUI: RAG ACL Bypass in Milvus Multitenancy Mode

RAG ACL Bypass in Milvus Multitenancy Mode SummaryThis is a bypass of the fix for:- GHSA-h36f-rqpx-j5wx- CVE-2026-44560- "Unauthorized File and Knowledge Base Content Access via RAG Vector Search"Open WebUI added collection-level ACL checks, but the patch can still be bypassed when Milvus...

CVE-2026-49984

Kestra is an open-source, event-driven orchestration platform. Prior to 1.0.45 and 1.3.23, the local internal-storage backend validates user-supplied paths for .. traversal before it converts Windows-style backslashes to forward slashes. An attacker can therefore smuggle a traversal sequence past...

CVE-2026-54019

Open WebUI is a self-hosted artificial intelligence platform designed to operate entirely offline. Prior to 0.9.6, Open WebUI added collection-level ACL checks, but the patch can still be bypassed when Milvus multitenancy mode is enabled. The ACL allows unknown non-KB collection names as...

CVE-2026-54019 Open WebUI: RAG ACL Bypass in Milvus Multitenancy Mode

Open WebUI is a self-hosted artificial intelligence platform designed to operate entirely offline. Prior to 0.9.6, Open WebUI added collection-level ACL checks, but the patch can still be bypassed when Milvus multitenancy mode is enabled. The ACL allows unknown non-KB collection names as...

CVE-2026-54019 Open WebUI: RAG ACL Bypass in Milvus Multitenancy Mode

Open WebUI is a self-hosted artificial intelligence platform designed to operate entirely offline. Prior to 0.9.6, Open WebUI added collection-level ACL checks, but the patch can still be bypassed when Milvus multitenancy mode is enabled. The ACL allows unknown non-KB collection names as...