CVE-2026-6722 Details
In PHP versions 8.2.* before 8.2.31, 8.3.* before 8.3.31, 8.4.* before 8.4.21, and 8.5.* before 8.5.6, the SOAP extension's object deduplication mechanism stores pointers to PHP objects in a global map without incrementing their reference counts. When an apache:Map node contains duplicate keys, processing the second entry overwrites the first in the temporary result map, freeing the original PHP object while its stale pointer remains in the map. A subsequent href reference to the freed node can copy the dangling pointer into the result. As PHP string allocations can reclaim the freed memory region, an attacker with control over the SOAP request body can exploit this use-after-free to achieve remote code execution.
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Exploit prediction scoring system (EPSS) score for CVE-2026-6722
EPSS (Exploit Prediction Scoring System): EPSS predicts the likelihood that a vulnerability will be exploited in the wild. A higher percentage means a greater chance of an exploit occurring. The EPSS model produces a probability score between 0 and 1 (0 and 100%).
0.37 Probability of exploitation activity being observed over the next 30 days (59th percentile)
CVSS score for CVE-2026-6722
CVSS (Common Vulnerability Scoring System): An open framework owned and managed by FIRST.Org, Inc. that assigns a numerical score from 0 to 10 to software vulnerabilities to indicate their severity.
9.8 Critical
Products affected by CVE-2026-6722
php 8.4.2
php 8.5.0
php 8.2.28
php 8.4.3
php 8.3.16
DVE Score by Bitsight AI
DVE scores complement traditional static scoring systems like CVSS with Bitsight AI powered real-time threat intelligence and underground cyber criminal activity so that security teams can reduce alert fatigue and focus on vulnerabilities most likely to be exploited.
Medium
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CVE-2026-6722 Global Footprint

Top 10 Identified Countries

Country Observations Percentage
US 272,912 29.51%
SE 88,929 9.61%
FR 80,309 8.68%
DE 74,529 8.06%
NL 65,333 7.06%
RU 65,043 7.03%
JP 29,347 3.17%
GB 29,254 3.16%
SG 16,742 1.81%
AU 16,688 1.80%

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CVE-2026-6722 Industry Footprint

Top 10 Identified Industries

*Service provider organizations (typically Technology and Telecommunications) are disproportionally represented in the results given their upstream ownership of end-user infrastructure. See our FAQs.

Industry* Observations Percentage
Technology 828,159 91.71%
Telecommunications 45,403 5.03%
Education 13,699 1.52%
Government/Politics 4,153 0.46%
Business Services 3,853 0.43%
Healthcare/Wellness 870 0.10%
Finance 870 0.10%
Manufacturing 795 0.09%
Utilities 775 0.09%
Engineering 534 0.06%

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