Timing Attack Affecting org.bouncycastle:bcprov-debug-jdk14 package, versions [1.71,1.84)
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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- published15 Apr 2026
- disclosed15 Apr 2026
- creditUnknown
Introduced: 15 Apr 2026
CVE-2026-5598 (opens in a new tab)How to fix?
Upgrade org.bouncycastle:bcprov-debug-jdk14 to version 1.84 or higher.
Overview
Affected versions of this package are vulnerable to Timing Attack through the sample and sample_matrix functions in FrodoEngine.java. An attacker can recover information about the sampled noise values by observing how long Frodo key generation or encapsulation takes when it processes attacker-influenced inputs. The variable-time comparison and sign handling in the error sampler leak the distribution of the generated samples, weakening the secrecy of the private Frodo noise and enabling key-recovery attacks against affected deployments.