Improper Check for Unusual or Exceptional Conditions Affecting rsa package, versions <0.9.10
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-RUST-RSA-14888149
- published7 Jan 2026
- disclosed6 Jan 2026
- creditChristian Reitter
Introduced: 6 Jan 2026
NewCVE-2026-21895 (opens in a new tab)How to fix?
Upgrade rsa to version 0.9.10 or higher.
Overview
Affected versions of this package are vulnerable to Improper Check for Unusual or Exceptional Conditions due to creating a RSA private key from its components. An attacker can cause a panic and potentially disrupt application availability by supplying a prime value of 1 during RSA private key construction.