by Kastro
Paper/Archive/CVE-2026-22863

CVE-2026-22863

denoland deno — Deno node:crypto doesn't finalize cipher

EPSS 0.2%CVSS 9.2
critical.is priorityof 100
30
CVSS 9.2 (CNA)9.2 / 10 × 3027.6Not in CISA KEV+300.0EPSS percentile 10.4.104 × 202.1No public exploit+100.0SSVC exploitation: none+100.0
Description · from the CVE record

Deno is a JavaScript, TypeScript, and WebAssembly runtime. Before 2.6.0, node:crypto doesn't finalize cipher. The vulnerability allows an attacker to have infinite encryptions. This can lead to naive attempts at brute forcing, as well as more refined attacks with the goal to learn the server secrets. This vulnerability is fixed in 2.6.0.

Affected

ProductAffectedFixed inSource
deno< 2.6.0–CNA

Scores by source

GitHub_M (CNA)9.2CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:N/VA:N/SC:H/SI:N/SA:N
CISA ADPSSVCExploitation: none · Automatable: yes · Technical impact: partial

References

refgithub.com/denoland/deno/security/advisories/GHSA-5379-f5hf-w38vrefgithub.com/denoland/deno/releases/tag/v2.6.0