# CVE-2026-22863

## Summary

- **CVE ID:** CVE-2026-22863
- **Severity:** CRITICAL
- **CVSS Score:** 9.2 (CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:N/VA:N/SC:H/SI:N/SA:N)
- **CWE:** CWE-325
- **Published:** Jan 15, 2026
- **Last Modified:** Mar 12, 2026

## Description

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 Products

- denoland — deno (< 2.6.0)

## References

- [CNA](https://github.com/denoland/deno/security/advisories/GHSA-5379-f5hf-w38v)
- [CNA](https://github.com/denoland/deno/releases/tag/v2.6.0)

## Exploitation Prediction (EPSS)

- **EPSS Score:** 0.20%
- **EPSS Percentile:** 9.8

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_Exported from OnDuty AI Vulnerability Intelligence on 2026-09-10._