CVE-2026-56848
7.5
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Summary
A flaw in Node.js HTTP/2 handling allows nghttp2_session_mem_send() to be called re-entrantly while nghttp2_session_mem_recv() is executing, resulting in a heap-use-after-free.
This vulnerability affects Node.js 26.x, 24.x, and 22.x.
Affected Software
| Vendor | Product | Version Range | Status |
|---|---|---|---|
| nodejs | node | 26.5.0 <= 26.5.0 | affected |
| nodejs | node | 24.18.0 <= 24.18.0 | affected |
| nodejs | node | 22.23.1 <= 22.23.1 | affected |
Weaknesses
- CWE-416: CWE-416 Use After Free
ADP Enrichment
CISA ADP Vulnrichment
- SSVC:
- Exploitation: none
- Automatable: yes
- Technical Impact: partial
References
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