Improper Validation of Specified Quantity in Input Affecting spiderlabs/modsecurity package, versions [2.9.8, 2.9.11)
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-SPIDERLABSMODSECURITY-10592825
- published3 Jul 2025
- disclosed2 Jul 2025
- creditUnknown
Introduced: 2 Jul 2025
NewCVE-2025-52891 (opens in a new tab)How to fix?
Upgrade spiderlabs/modsecurity to version 2.9.11 or higher.
Overview
Affected versions of this package are vulnerable to Improper Validation of Specified Quantity in Input in the SecParseXmlIntoArgs process when handling requests with the application/xml content type containing at least one empty XML tag. An attacker can cause a segmentation fault and disrupt service availability by sending specially crafted XML payloads.
Note:
This is only exploitable if SecParseXmlIntoArgs is set to On or OnlyArgs.
Workaround
This vulnerability can be mitigated by setting SecParseXmlIntoArgs to Off.