Insecure Randomness Affecting io.netty.incubator:netty-incubator-codec-ohttp-hpke-bouncycastle package, versions [,0.0.21.Final)
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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- published9 Jun 2026
- disclosed26 May 2026
- creditUnknown
Introduced: 26 May 2026
CVE-2026-41207 (opens in a new tab)How to fix?
Upgrade io.netty.incubator:netty-incubator-codec-ohttp-hpke-bouncycastle to version 0.0.21.Final or higher.
Overview
Affected versions of this package are vulnerable to Insecure Randomness due to the HKDF_expand and EVP_HPKE_CTX_export functions returning a zero-filled byte array on failure, which is then used as key material for AEAD encryption. An attacker can predict and exploit the deterministic, all-zero AEAD key by triggering failures in these cryptographic operations.