Use After Free Affecting php package, versions [8.2.0 ,8.2.31)[8.3.0,8.3.31)[8.4.0,8.4.21)[8.5.0,8.5.6)
Threat Intelligence
The probability is the direct output of the EPSS model, and conveys an overall sense of the threat of exploitation in the wild. The percentile measures the EPSS probability relative to all known EPSS scores. Note: This data is updated daily, relying on the latest available EPSS model version. Check out the EPSS documentation for more details.
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Test your applications- Snyk IDSNYK-UNMANAGED-PHP-16624453
- published10 May 2026
- disclosed10 May 2026
- creditbrettgervasoni
Introduced: 10 May 2026
CVE-2026-6722 (opens in a new tab)How to fix?
Upgrade php to version 8.2.31, 8.3.31, 8.4.21, 8.5.6 or higher.
Overview
Affected versions of this package are vulnerable to Use After Free in the object deduplication process of the SOAP extension, which stores pointers to objects in a global map without incrementing their reference counts. An attacker can execute arbitrary code by crafting a SOAP request body that causes a freed object pointer to be reused, potentially allowing remote code execution.