CVE-2025-64767 — AI Deep Analysis Summary

🚨 **Essence**: CVE-2025-64767 is a critical race condition in `hpke-js`'s `SenderContext Seal` API. 📉 **Consequences**: Attackers can cause a total loss of message confidentiality and integrity.…

🔍 **Root Cause**: CWE-323 (Operation with Incorrect State). ⚙️ **Flaw**: A race condition exists in the encryption logic. 🧠 The state management during sealing is flawed, allowing concurrent access issues.

👥 **Affected**: Users of `hpke-js` by developer **dajiaji** (Ajitomi Daisuke). 📦 **Version**: All versions **prior to 1.7.5** are vulnerable. 🚫 Version 1.7.5+ is safe.

💻 **Hacker Actions**: They can intercept and read encrypted messages. 👁️ **Privileges**: No authentication needed! 📄 **Data Impact**: Complete compromise of confidentiality (C:H) and integrity (I:H). 🕵️‍♂️

🔓 **Threshold**: LOW! 🚀 **Auth**: None required (PR:N). 🌐 **Network**: Remote (AV:N). 🖱️ **UI**: No interaction needed (UI:N). ⚡ Easy to exploit remotely.

📜 **Public Exp?**: No specific PoC code provided in the data. 🔗 **References**: GitHub advisory (GHSA-73g8-5h73-26h4) and commit logs are available. ⚠️ Theoretical exploitability is high due to CVSS score.

🔎 **Self-Check**: Scan your dependencies for `hpke-js`. 📊 **Version**: Check if version < 1.7.5. 🛠️ **Tooling**: Use SCA tools to detect this specific CVE ID. 📝 Look for `SenderContext` usage.

✅ **Fixed?**: YES! 🩹 **Patch**: Upgrade to **hpke-js v1.7.5** or later. 🔗 **Commit**: Fix committed at `94a767c9b9f37ce48d5cd86f7017d8cacd294aaf`. 🔄 Update immediately!

🛡️ **No Patch?**: Isolate the service. 🚫 **Mitigation**: Disable the `SenderContext Seal` API if possible. 🧱 **Workaround**: Implement external state locking or switch to a different HPKE library.…

🔥 **Urgency**: HIGH! 🚨 **Priority**: Critical (CVSS 9.8). 📅 **Published**: Nov 21, 2025. ⏳ **Action**: Patch NOW. This affects core encryption security. Don't wait!