CVE-2026-105482
Last modified
CVE-2026-105482 is a high-severity vulnerability rated 7.4/10 on the CVSS scale. A flaw in Node.js DNS resolution allows hostnames containing a NUL byte to be silently truncated by the dns.resolve*() functions and dns.reverse(). This is an incomplete fix of CVE-2026-48930, which only covered dns.lookup() and the net/tls host options. Because the name is passed to c-ares as a C string, resolving attacker.example\0.trusted.example queries attacker.example and returns its records without any error.
Description
A flaw in Node.js DNS resolution allows hostnames containing a NUL byte to be silently truncated by the dns.resolve*() functions and dns.reverse(). This is an incomplete fix of CVE-2026-48930, which only covered dns.lookup() and the net/tls host options. Because the name is passed to c-ares as a C string, resolving attacker.example\0.trusted.example queries attacker.example and returns its records without any error. Applications that validate a hostname, for example against a domain allowlist, and then resolve it with dns.resolve*() can act on records for a different name than the one they validated. This vulnerability affects Node.js 26.x, 24.x, and 22.x.
Metrics
Weakness Enumeration
Affected Software
Source: CNA advisory (CVE.org). NVD analysis pending.
| Vendor | Product | Versions |
|---|---|---|
| nodejs | node | >= 22.23.3, <= 22.23.3; >= 24.22.0, <= 24.22.0; >= 26.12.0, <= 26.12.0 |
References
Timeline
- Published
- Last Modified
- Status
- Awaiting Analysis
Frequently Asked Questions
What is CVE-2026-105482?
How severe is CVE-2026-105482?
How do I fix CVE-2026-105482?
How Strix Helps
- Uncovering a hidden BOLA in Appsmith's snapshot logicStrix autonomously discovered a BOLA/IDOR vulnerability in Appsmith's snapshot deletion path.
- Autonomous PentestingAI agents that find and validate exploitable vulnerabilities like this one across your applications.
- PR ReviewsPentest every pull request so vulnerable code is caught before it ships to production.
- AI Penetration TestingHow AI-driven penetration testing continuously covers your attack surface.
Related CVEs from 2026
- CVE-2026-105471A security flaw has been discovered in girishsaraf Online-Ap…7.3
- CVE-2026-105472A weakness has been identified in girishsaraf Online-Appoint…6.3
- CVE-2026-105474A server-side template injection exists in SolusVM 2 up to v…9.4
- CVE-2026-105477A vulnerability in Veeam Agent for Linux allows for local pr…7.3
- CVE-2026-10548A security flaw has been discovered in NousResearch hermes-a…5.3
- CVE-2026-105481A flaw in Node.js HTTP Agent connection reuse can cause a cl…6.5
- CVE-2026-105483A flaw in Node.js TLS hostname verification allows a certifi…7.4
- CVE-2026-105484A security vulnerability has been detected in TOTOLINK X6000…10
- CVE-2026-105485Authentication bypass OAuth device authorization flow in Dev…6.8
- CVE-2026-105486A vulnerability was detected in OSSRS srs up to 7.0-a1. This…7.3
- CVE-2026-105487A vulnerability was found in yogeshojha reNgine up to 2.2.0.…6.3
- CVE-2026-105488Missing authorization in the global vault in Devolutions Ser…7.1
Are you affected by CVE-2026-105482?
Run a free Strix scan to check your systems for this vulnerability.
Scan your code nowSource: NVD / NIST