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CVE-2025-30215 β€” AI Deep Analysis Summary

CVSS 9.6 Β· Critical

Q1What is this vulnerability? (Essence + Consequences)

🚨 **Essence**: A critical security flaw in NATS-Server. πŸ“‰ **Consequences**: Lack of access control on JS API requests leads to potential **data destruction** and system instability.

Q2Root Cause? (CWE/Flaw)

πŸ›‘οΈ **Root Cause**: **CWE-306** (Missing Authentication for Critical Function). The core flaw is the absence of proper access control mechanisms for specific API endpoints.

Q3Who is affected? (Versions/Components)

πŸ“¦ **Affected Versions**: β€’ NATS-Server **2.2.0** to **2.10.27** (exclusive of 2.10.27?…

Q4What can hackers do? (Privileges/Data)

πŸ’₯ **Attacker Capabilities**: With low privileges, hackers can bypass JS API security.…

Q5Is exploitation threshold high? (Auth/Config)

πŸ”“ **Exploitation Threshold**: **Low**. β€’ Attack Vector: Network (AV:N). β€’ Complexity: Low (AC:L). β€’ Privileges Required: Low (PR:L). β€’ User Interaction: None (UI:N).

Q6Is there a public Exp? (PoC/Wild Exploitation)

πŸ•΅οΈ **Public Exploit**: **No**. The `pocs` field is empty. No public Proof-of-Concept or wild exploitation code is currently available.

Q7How to self-check? (Features/Scanning)

πŸ” **Self-Check**: 1. Identify your NATS-Server version. 2. Check if it falls within the vulnerable ranges (2.2.0–2.10.26, 2.11.0–2.11.1). 3. Review JS API access logs for unauthorized access attempts.

Q8Is it fixed officially? (Patch/Mitigation)

βœ… **Official Fix**: **Yes**. Updates are available. β€’ Upgrade to **NATS-Server 2.10.27** or later. β€’ Upgrade to **NATS-Server 2.11.2** or later.…

Q9What if no patch? (Workaround)

🚧 **No Patch Workaround**: β€’ Implement strict **Network Access Control Lists (ACLs)** on JS API ports. β€’ Enforce **Authentication** at the reverse proxy/load balancer level before requests reach the server.

Q10Is it urgent? (Priority Suggestion)

⚑ **Urgency**: **HIGH**. β€’ CVSS Score: **8.6** (High). β€’ Impact: High Integrity & Availability. β€’ Action: Patch immediately to prevent data corruption.