Handler on Duty: Brad Duncan
Threat Level: green
| Published | 2026-08-03 04:16:39 |
|---|---|
| Last Modified | 2026-08-03 04:16:39 |
| AKA | CVE-2026-12803 |
| Summary | In Bouncy Castle for Java before 1.85, KCCMBlockCipher MAC does not bind nonce when AAD is absent (cross-nonce AEAD forgery). This issue also affects Bouncy Castle for Java LTS before 2.73.12. |
| Access Vector | Local | Adjacent | Network |
|---|---|---|---|
| Access Complexity | Low | Medium | High |
| Authentication | None | Single | Multiple |
| Confidentiality | None | Partial | Complete |
| Integrity | None | Partial | Complete |
| Availability | None | Partial | Complete |