CVE-2026-22863

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.

CVSS v3 7.5 HIGH

7.5^/10

CVSS v3 : HIGH

Vector :

Exploitability : 3.9 / Impact : 3.6

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required NONE

User Interaction NONE

Confidentiality Impact HIGH

Integrity Impact NONE

Availability Impact NONE

Scope UNCHANGED

References

Link	Resource
https://github.com/denoland/deno/releases/tag/v2.6.0	Release Notes
https://github.com/denoland/deno/security/advisories/GHSA-5379-f5hf-w38v	Exploit Vendor Advisory

Configurations

Configuration 1 (hide)

cpe:2.3:a:deno:deno:*:*:*:*:*:*:*:*

History

17 Jun 2026, 10:20

Type	Values Removed	Values Added
Summary		(es) Deno es un entorno de ejecución de JavaScript, TypeScript y WebAssembly. Antes de la versión 2.6.0, node:crypto no finaliza el cifrado. La vulnerabilidad permite a un atacante tener cifrados infinitos. Esto puede llevar a intentos ingenuos de fuerza bruta, así como a ataques más refinados con el objetivo de aprender los secretos del servidor. Esta vulnerabilidad está corregida en la versión 2.6.0.

21 Jan 2026, 14:35

Type	Values Removed	Values Added
First Time		Deno Deno deno
CPE		cpe:2.3:a:deno:deno::::::::
CVSS	v2 : ~~unknown~~ v3 : ~~unknown~~	v2 : unknown v3 : 7.5
References	~~() https://github.com/denoland/deno/releases/tag/v2.6.0 -~~	() https://github.com/denoland/deno/releases/tag/v2.6.0 - Release Notes
References	~~() https://github.com/denoland/deno/security/advisories/GHSA-5379-f5hf-w38v -~~	() https://github.com/denoland/deno/security/advisories/GHSA-5379-f5hf-w38v - Exploit, Vendor Advisory

15 Jan 2026, 23:15

Type	Values Removed	Values Added
New CVE

Information

Published : 2026-01-15 23:15

Updated : 2026-06-17 10:20

NVD link : CVE-2026-22863

Mitre link : CVE-2026-22863

CVE.ORG link : CVE-2026-22863

JSON object : View

Products Affected

deno

deno

CWE

CWE-325

Missing Cryptographic Step

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