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The WAF rule deployed yesterday to block unsafe deserialization-based RCE has been updated. The rule description now reads “React – RCE – CVE-2025-55182”, explicitly mapping to the recently disclosed React Server Components vulnerability. Detection logic remains unchanged.
Key Findings
Rule description updated to reference React – RCE – CVE-2025-55182 while retaining existing unsafe-deserialization detection.
Impact
Improved classification and traceability with no change to coverage against remote code execution attempts.
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Key Findings
Rule description updated to reference React – RCE – CVE-2025-55182 while retaining existing unsafe-deserialization detection.
Impact
Improved classification and traceability with no change to coverage against remote code execution attempts.
| Ruleset | Rule ID | Legacy Rule ID | Description | Previous Action | New Action | Comments |
|---|---|---|---|---|---|---|
| Cloudflare Managed Ruleset | ...5fb92fba | N/A | React - RCE - CVE:CVE-2025-55182 | N/A | Block | Rule metadata description changed. Detection unchanged. |
| Cloudflare Free Ruleset | ...99702280 | N/A | React - RCE - CVE:CVE-2025-55182 | N/A | Block | Rule metadata description changed. Detection unchanged. |
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