CVE-2026-45247
Mirasvit Full Page Cache Warmer Deserialization of Untrusted Data Vulnerability
Mirasvit Mirasvit Full Page Cache Warmer
CVSS
9.3CriticalExploit odds (EPSS)2.08%Chance of exploitation activity in the next 30 days, higher than 81% of CVEs. Scored 23 Oct 2026FIRST EPSS
CISA required actionApply mitigations per vendor instructions, follow applicable BOD 22-01 guidance for cloud services, or discontinue use of the product if mitigations are unavailable. CISA KEV
What fixes it
- 1.11.12Full Page Cache Warmer for Magento 2CVE List
A fixed version on one release line is not the upgrade target for every line. Check your exact version and any vendor backports.
Timeline
Description
Mirasvit Full Page Cache Warmer contains a deserialization of untrusted data vulnerability that could allow unauthenticated attackers to achieve remote code execution by supplying a crafted serialized PHP object in the CacheWarmer cookie.
Text from CVE List
Affected versions 1
- Full Page Cache Warmer for Magento 2affected: all versions before 1.11.12CVE List
References 6
- mirasvit.com/package/changelog/?package=mirasvit/module-cache-warmerFixvia CVE List
- vulncheck.com/advisories/mirasvit-cache-warmer-for-magento-php-object-injectionAdvisoryvia CVE List
- nvd.nist.gov/vuln/detail/CVE-2026-45247Referencevia CISA KEV
- sansec.io/research/mirasvit-cache-warmer-object-injectionReferencevia CVE List
- imperva.com/blog/imperva-customers-protected-against-cve-2026-45247-in-mirasvit-full-page-cache-warmer-for-magento/Referencevia CVE List
- cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2026-45247Referencevia CVE List