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CVE-2026-67921 halo-dev CVE debrief

A Cross-Site Request Forgery (CSRF) vulnerability exists in Halo CMS versions up to 2.25.4, located in the CorsConfigurer.java and CsrfConfigurer.java components. This allows a remote attacker to execute arbitrary code, with a CVSS score of 9.3 indicating CRITICAL severity. Administrators and users of affected versions should be aware and take necessary mitigation actions. The CVE record was published on 2026-08-18T18:19:25.483Z. Limited source detail is available; verify vulnerability scope and impact through official advisories.

Vendor
halo-dev
Product
Halo CMS
CVSS
CRITICAL 9.3
CISA KEV
Not listed in stored evidence
Original CVE published
2026-08-18
Original CVE updated
2026-08-31
Advisory published
2026-08-18
Advisory updated
2026-08-31

Who should care

Administrators and users of Halo CMS versions up to 2.25.4 should be aware of this vulnerability and take necessary actions to mitigate the risk. This includes reviewing system configurations, validating user requests, and enhancing authentication mechanisms. Security teams should prioritize patching and monitor for suspicious activity.

Technical summary

A Cross-Site Request Forgery (CSRF) vulnerability exists in Halo CMS versions up to 2.25.4, located in the CorsConfigurer.java and CsrfConfigurer.java components. This allows a remote attacker to execute arbitrary code. The CVSS score is 9.3, indicating a CRITICAL severity level. Technical impact includes potential code execution; defensive priorities include patching, enhanced authentication, and monitoring.

Defensive priority

Organizations using Halo CMS versions up to 2.25.4 should prioritize patching to prevent potential code execution.

Recommended defensive actions

  • Apply patches or updates provided by the vendor to address the CSRF vulnerability.
  • Implement additional security measures such as validating user requests and enhancing authentication mechanisms.
  • Monitor systems for suspicious activity and ensure incident response plans are in place.
  • Review compensating controls for exposed systems while remediation is scheduled and verified.
  • Confirm whether affected product deployments exist in managed environments and assign an owner for follow-up.

Evidence notes

The CVE-2026-67921 record indicates a Cross-Site Request Forgery (CSRF) vulnerability in Halo CMS versions up to 2.25.4, attributed to the CorsConfigurer.java and CsrfConfigurer.java components, with a CVSS score of 9.3 classified as CRITICAL. Evidence is limited; verify affected scope and vendor guidance through official sources. Defenders should validate system configurations and review for potential exposure.

Sources and references

Verified primary and authoritative sources

  • CVE-2026-67921 CVE Program record

    Publisher, destination, and source semantics verified

    URL: https://www.cve.org/CVERecord?id=CVE-2026-67921

    CVE Program - Official CVE Program record with source-provided CVE metadata.

  • CVE-2026-67921 NVD vulnerability detail

    Publisher, destination, and source semantics verified

    URL: https://nvd.nist.gov/vuln/detail/CVE-2026-67921

    NIST National Vulnerability Database - Official NIST NVD detail page and source-specific vulnerability assessment.

Supplemental 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.