En bref
- CVE-2026-41207 est une vulnérabilité MOYENNE (CVSS 5.3) touchant io.netty.incubator:netty-incubator-codec-ohttp, netty-incubator-codec-ohttp (netty).
- Probabilité d'exploitation dans les 30 prochains jours (EPSS) : 0.19%, plus élevée que 9.0% des vulnérabilités.
- Correctif : mettre à jour vers 0.0.21.Final, 0.0.21 ou plus récent.
Description
HKDF_expand: returns non-NULL on failure. The byte[] is filled with zeros and has no way to distinguish success from failure. Since this output is used as HKDF key material for the response AEAD, a failure silently produces an all-zero key.
When EVP_HPKE_CTX_export fails it also returns an empty byte[] array filled with zeros. This byte[] feeds directly into OHttpCrypto.createResponseAEAD(...). A silent all-zero export secret would produce a deterministic, attacker-predictable AEAD key.
NVD description
The netty incubator codec.bhttp is a java language binary http parser. Prior to version 0.0.21.Final, HKDF_expand returns non-NULL on failure. The byte[] is filled with zeros and has no way to distinguish success from failure. Since this output is used as HKDF key material for the response AEAD, a failure silently produces an all-zero key. When EVP_HPKE_CTX_export fails it also returns an empty byte[] array filled with zeros. This byte[] feeds directly into OHttpCrypto.createResponseAEAD(...). A silent all-zero export secret would produce a deterministic, attacker-predictable AEAD key. Version 0.0.21.Final patches the issue.
Autres vulnérabilités de io.netty.incubator:netty-incubator-codec-ohttp
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