Directus Multiple Security Vulnerabilities

OAuth authorization flow interception in Directus enables attackers to steal victims' identity provider access tokens through cross-origin window manipulation. This authentication bypass vulnerability (CVSS 8.7) affects the Directus npm package due to missing Cross-Origin-Opener-Policy headers on SSO login pages, allowing malicious sites to redirect OAuth flows to attacker-controlled clients. No public exploit identified at time of analysis, though EPSS data unavailable. Attack complexity rated HIGH due to requirement for victim interaction with attacker-controlled origin during authentication flow.

Directus CMS aggregate query functions bypass field-level concealment controls, exposing static API tokens and TOTP secrets from the directus_users table to any authenticated user with read access. Attackers can extract credentials for all accounts via min/max operations combined with groupBy clauses, enabling account takeover and two-factor authentication bypass. CVSS 8.1 (High) reflects network-accessible attack requiring only low-privilege authentication. No public exploit code or CISA KEV listing identified at time of analysis, though the attack vector is clearly documented in the GitHub security advisory.

Arbitrary file overwrite in Directus TUS resumable upload endpoint allows authenticated users to replace any existing file by UUID, bypassing row-level access controls. The vulnerability affects the npm package directus, where the /files/tus controller validates only collection-level permissions but skips item-level authorization checks. Attackers with basic file upload permissions can permanently overwrite victim files with malicious content, potentially escalating privileges by replacing admin-owned assets. EPSS data not available, but the moderate complexity (CVSS AC:L, PR:L) and specific bypass mechanism suggest focused targeting risk. No active exploitation confirmed (not in CISA KEV), and no public exploit code identified at time of analysis.

Server-Side Request Forgery (SSRF) in Directus headless CMS allows authenticated attackers (or unauthenticated users with public file-import permissions) to bypass IP address deny-list protections and access internal network resources. Attackers exploit IPv4-Mapped IPv6 address notation (e.g., ::ffff:127.0.0.1) to circumvent validation logic, enabling unauthorized requests to localhost services, internal databases, caches, APIs, and cloud instance metadata endpoints (AWS/GCP/Azure IMDS). With CVSS 7.7 (AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:N/A:N) indicating low attack complexity, network accessibility, and scope change with high confidentiality impact, this represents a significant risk for data exfiltration from cloud environments and internal infrastructure. No public exploit identified at time of analysis, though the technical details in the advisory provide clear exploitation guidance.

Directus GraphQL endpoints fail to deduplicate resolver invocations within single requests, allowing authenticated users to exploit GraphQL aliasing for denial-of-service attacks. An attacker with minimal read-only permissions can repeat expensive relational queries using multiple aliases in a single request, forcing concurrent execution of numerous complex database queries that exhaust connection pools and server resources, potentially degrading or crashing the service. No public exploit code has been identified, and this vulnerability requires prior authentication to the Directus instance.

Open redirect vulnerability in Directus login redirection logic allows unauthenticated attackers to bypass URL allow-list validation through malformed URLs containing backslashes, silently redirecting authenticated users to arbitrary external domains. The vulnerability exploits a parser differential between server-side validation and browser URL normalization, creating a phishing vector particularly dangerous in SSO/OAuth2 flows where attackers can capture authentication tokens without visible user indication. CVSS 6.1 reflects moderate real-world risk due to user interaction requirement and limited direct confidentiality impact, but the attack chain (authentication + silent redirect + credential theft) presents meaningful business risk.

Directus allows information disclosure of GraphQL schema structure via the `/graphql/system` endpoint when `GRAPHQL_INTROSPECTION=false` is configured, exposing collection names, field names, types, and relationships to unauthenticated users and authenticated users at their permission level. The vulnerability bypasses the introspection control mechanism by returning an equivalent SDL (Schema Definition Language) representation through the `server_specs_graphql` resolver, giving administrators a false sense of security while schema information remains publicly accessible.

Open redirect vulnerability in Directus allows unauthenticated attackers to redirect administrators to attacker-controlled URLs after 2FA setup completion via crafted `/admin/tfa-setup` redirect parameter. The attack leverages user interaction on the trusted Directus domain before redirecting to a malicious site, enabling phishing campaigns targeting administrators. CVSS 4.3 (low severity), no public exploit code or active exploitation confirmed.