CVE-2026-105307 Casdoor CVE debrief

Who should care

Defenders responsible for Casdoor deployments should assess exposure and prioritize verification and mitigation efforts. This includes reviewing authentication mechanisms, assessing exposure to potential remote attacks, and implementing compensating controls to mitigate authentication bypass. Security teams and vulnerability management teams should also prioritize verifying affected versions and assessing exposure in their environments.

Why it matters

CVE-2026-105307 is a medium-severity vulnerability in Casdoor that allows remote attackers to bypass authentication. Defenders should prioritize verifying affected versions, assessing exposure, and implementing compensating controls.

• Verify authentication mechanisms for Casdoor deployments
• Assess exposure to potential remote attacks
• Implement compensating controls to mitigate authentication bypass

Technical summary

The vulnerability is caused by a flaw in the ApiFilter function of the routers/authz_filter.go file in Casdoor up to 3.161.1. This allows remote attackers to bypass authentication, potentially impacting the security of affected deployments. The CVE record and NVD entry provide details about the vulnerability, but the vendor did not respond to early disclosure. Defenders should prioritize verifying affected versions and assessing exposure in their environments to mitigate potential risks. The exploit is public, but there is no information on widespread exploitation.

Defensive priority

Defenders should prioritize verifying the affected versions and assessing exposure in their environments.

Recommended defensive actions

• Verify the version of Casdoor in use and assess exposure to potential remote attacks
• Implement compensating controls to mitigate the vulnerability
• Monitor for potential exploitation attempts
• Review authentication mechanisms for Casdoor deployments
• Assess exposure to potential remote attacks
• Implement compensating controls to mitigate authentication bypass
• Track exceptions and retest remediated assets

Evidence notes

The CVE record and NVD entry provide details about the vulnerability, but the vendor did not respond to early disclosure. The exploit is public, but there is no information on widespread exploitation. Defenders should verify the affected versions and assess exposure in their environments. The CVE Program and NVD offer official details, but additional source references may provide further context.

Sources and references

Methodology and review provenance

AI-assisted synthesis based on stored public vulnerability evidence. System validation, approval state, and publication status do not by themselves establish human review of this revision. PatchSiren helps prioritize defensive review and does not prove exposure or remediation on any system.