Vulnerability intelligence
CVE-2026-56848
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.
CVSS Score
7.5
High
EPSS — Exploit Probability
0.5%
Riskier than 41% of all CVEs · checked 2026-10-19
Exploitation
Not in CISA KEV
KEV does not include every exploited vulnerability
Remediation
unknown
Check vendor advisories
1 article across 1 outlet · first covered Jul 29, 2026 · latest Oct 7, 2026
Coverage timeline
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Microsoft’s AI Research Uncovered 140 Windows Vulnerabilities and Spurred Linux Fixeswww.microsoft.com · Oct 7, 2026