Allocation of Resources Without Limits or Throttling Affecting expat package, versions [,2.7.2)
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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Start learning- Snyk IDSNYK-CONAN-EXPAT-13003672
- published24 Sept 2025
- disclosed15 Sept 2025
- creditUnknown
Introduced: 15 Sep 2025
NewCVE-2025-59375 (opens in a new tab)How to fix?
Upgrade expat to version 2.7.2 or higher.
Overview
Affected versions of this package are vulnerable to Allocation of Resources Without Limits or Throttling via the parser process. An attacker can cause excessive memory consumption by submitting a specially crafted XML document, resulting in service disruption due to resource exhaustion.
Workaround
This vulnerability can be mitigated by limiting XML input size and complexity before parsing, avoiding acceptance of compressed or deeply nested XML, and applying OS-level resource controls (such as ulimit or setrlimit()) to cap memory usage, or running the parser in a sandboxed or isolated process with strict memory and CPU limits.