Acceptance of Extraneous Untrusted Data With Trusted Data Affecting check-jsonschema package, versions [,0.30.0)
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-PYTHON-CHECKJSONSCHEMA-8445277
- published1 Dec 2024
- disclosed29 Nov 2024
- creditSeth Michael Larson
Introduced: 29 Nov 2024
NewCVE-2024-53848 (opens in a new tab)How to fix?
Upgrade check-jsonschema to version 0.30.0 or higher.
Overview
check-jsonschema is an A jsonschema CLI and pre-commit hook
Affected versions of this package are vulnerable to Acceptance of Extraneous Untrusted Data With Trusted Data via the default caching mechanism for remote schemas. An attacker can manipulate the cache to insert a malicious schema, which will be used instead of the intended schema, potentially allowing invalid data to pass validation by directing a user to a malicious schema URL.
Workaround
This vulnerability can be mitigated by disabling caching with --no-cache, using --cache-filename to specify cache filenames, or by manually downloading the schema as a local file before use as in curl -LOs https://example.org/schema.json; check-jsonschema --schemafile ./schema.json