Improper Authentication Bypass in linqi CDN File Access
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- None
- Attack complexity
- Low
- Attack requirements
- None
- Impact type
- Security bypass
- Confidentiality · integrity · availability
- Low · None · None
- Fix status
- Fixed
Attack profile from CVSS 4.0 · CNA. Fix status from CNA. Impact type from CWE-287.
Summary
An Improper Authentication vulnerability in the /api/Cdn/GetFile endpoint of linqi allows unauthenticated, remote attackers to bypass file access controls. The ValidateAnonFileAccess function incorrectly grants access if an 'AnonFile' query parameter containing exactly 256 characters is provided. While this flaw allows bypassing the intended authorization check, the actual security impact is negligible; the exposed resources are strictly limited to minified JavaScript and CSS files that contain no sensitive data and are already publicly accessible via a standard CDN.
Why it matters now
SSVC decision points
CISA ADP · SSVC 2.0.3
- Exploitation
- None
- Automatable
- Yes
- Technical impact
- Partial
The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| linqi GmbH | linqi | before 1.4.8.6 | 1.4.8.6 | Patch available | CNA |
- linqi Vendorlinqi GmbH Affected before 1.4.8.6 Fixed in 1.4.8.6 Patch available CNA
Remediation
- Fix · CNA linqi (linqi GmbH) Fixed in 1.4.8.6
Fixed in the same release
Records fixed by the same vendor advisory or release, as the CNA lists them.
- Advisory ·
linqi — linqi.help/en/reference/security/security-advisories
4 records Highest priority Priority LOW 4 LOW
Other records, highest priority first
- TI-2026-09795 Hardcoded Cryptographic Keys and Weak IV Generation in linqiPriority LOW 37
- TI-2026-09814 IDOR in Comment API Allows Cross-Process Comment Read and WritePriority LOW 31
- TI-2026-09794 Server-Side Request Forgery (SSRF) allowing Internal Network Probing in linqiPriority LOW 23
Timeline
- 2026-10-02 Threatist record created from CVE-2026-11345
- 2026-10-03 Alias added: GHSA-xj32-w24w-7c6q
References
More linqi GmbH vulnerabilities
- TI-2024-22349 An issue was discovered in linqi before 1.4.0.1 on Windows. CVSS 3.1CRITICAL 9.8
- TI-2024-22344 An issue was discovered in linqi before 1.4.0.1 on Windows. CVSS 3.1CRITICAL 9.8
- TI-2024-22346 An issue was discovered in linqi before 1.4.0.1 on Windows. CVSS 3.1HIGH 7.5
- TI-2026-09795 Hardcoded Cryptographic Keys and Weak IV Generation in linqi CVSS 4.0HIGH 8.5
- TI-2026-09814 IDOR in Comment API Allows Cross-Process Comment Read and Write CVSS 4.0HIGH 7.1
- TI-2024-22345 An issue was discovered in linqi before 1.4.0.1 on Windows. CVSS 3.1MEDIUM 5.9
Sources
- CVE-2026-11345 · CVE Program
- CVE-2026-11345 · NVD
- FIRST EPSS
- GHSA-xj32-w24w-7c6q · GitHub Advisory Database · CC BY 4.0
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences