Beckhoff: Open redirect in TwinCAT/BSD package authelia-bhf
Priority LOW 22CWE-601Published · Updated
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- Required
- Attack complexity
- Low
- Impact type
- Spoofing
- Confidentiality · integrity · availability
- None · Low · None
- Fix status
- Fixed
Attack profile from CVSS 3.1 · CNA. Fix status from CNA. Impact type from CWE-601.
Summary
The package authelia-bhf included in Beckhoffs TwinCAT/BSD is prone to an open redirect that allows a remote unprivileged attacker to redirect a user to another site. This may have limited impact to integrity and does solely affect anthelia-bhf the Beckhoff fork of authelia.
Why it matters now
Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.00433 37th percentileScored 2026-11-07
Fix Fixed authelia-bhf of TwinCAT/BSD (Beckhoff): 4.37.5
SSVC decision points
CISA ADP · SSVC 2.0.3
- Exploitation
- None
- Automatable
- No
- 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 |
|---|---|---|---|---|---|
| Beckhoff | authelia-bhf of TwinCAT/BSD | before 4.37.5 | 4.37.5 | Patch available | CNA |
- authelia-bhf of TwinCAT/BSD VendorBeckhoff Affected before 4.37.5 Fixed in 4.37.5 Patch available CNA
Remediation
- Fix · CNA authelia-bhf of TwinCAT/BSD (Beckhoff) Fixed in 4.37.5
Timeline
- 2026-10-02 Threatist record created from CVE-2023-6545
- 2026-10-03 Alias added: GHSA-g5qg-mm6j-8cm3
References
Sources
- CVE-2023-6545 · CVE Program
- CVE-2023-6545 · NVD
- FIRST EPSS
- GHSA-g5qg-mm6j-8cm3 · GitHub Advisory Database · CC BY 4.0
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