Integer Overflow or Wraparound Affecting php package, versions [,8.2.34)[8.3.0RC1,8.3.35)[8.4.0RC1,8.4.26)[8.5.0RC1,8.5.11)
Threat Intelligence
Snyk has a proof-of-concept or detailed explanation of how to exploit this vulnerability.
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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Start learning- Snyk IDSNYK-UNMANAGED-PHP-20158667
- published27 Sept 2026
- disclosed25 Sept 2026
- creditUnknown
Introduced: 25 Sep 2026
NewCVE-2025-14181 (opens in a new tab)How to fix?
Upgrade php to version 8.2.34, 8.3.35, 8.4.26, 8.5.11 or higher.
Overview
Affected versions of this package are vulnerable to Integer Overflow or Wraparound leading to a heap buffer overflow in get_http_body() in ext/soap/php_http.c, where the bounds check on the accumulated response size is expressed in terms of signed integer overflow, which is undefined behavior that a compiler may remove entirely. An attacker can corrupt heap memory or crash the process by answering a SOAP request with a multi-gigabyte response whose length drives the size computation past INT_MAX, so the allocated buffer is smaller than the data subsequently written into it. This requires the application to act as a SOAP client against a server the attacker controls, a deployment willing to accept responses of that size, and a build whose compiler discarded the check, and the outcome depends on heap layout.
Workaround
This vulnerability can be avoided by setting a low memory_limit, which causes the allocation to fail with an out of memory error before the overflow is reached.