Improper Validation of Integrity Check Value Affecting org.bouncycastle:bcpkix-fips package, versions [,1.0.13)[2.0.0,2.0.13)[2.1.0, 2.1.13)
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-JAVA-ORGBOUNCYCASTLE-20536979
- published6 Oct 2026
- disclosed3 Oct 2026
- creditBhargava Shastry
Introduced: 3 Oct 2026
NewCVE-2026-71888 (opens in a new tab)How to fix?
Upgrade org.bouncycastle:bcpkix-fips to version 1.0.13, 2.0.13, 2.1.13 or higher.
Overview
Affected versions of this package are vulnerable to Improper Validation of Integrity Check Value in the CMSAuthenticatedDataParser process. An attacker can cause unauthorized attribute injection by crafting a message where the digestAlgorithm field is absent but authAttrs is present, allowing the insertion of arbitrary authenticated attributes that are not covered by the MAC. This can lead to applications making authorization, routing, or labeling decisions based on attacker-controlled values.