CVE-2026-22863
Last modified
CVE-2026-22863 is a high-severity vulnerability rated 7.5/10 on the CVSS scale. Deno is a JavaScript, TypeScript, and WebAssembly runtime. Before 2.6.0, node:crypto doesn't finalize cipher. EPSS estimates a 0.19% chance of exploitation in the next 30 days.
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.
Metrics
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
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/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
Weakness Enumeration
Affected Software
| Vendor | Product | Versions |
|---|---|---|
| Deno | Deno | < 2.6.0 |
References
- https://github.com/denoland/deno/releases/tag/v2.6.0Release Notes
- https://github.com/denoland/deno/security/advisories/GHSA-5379-f5hf-w38vExploit, Vendor Advisory
Timeline
- Published
- Last Modified
- Status
- Analyzed
Frequently Asked Questions
What is CVE-2026-22863?
How severe is CVE-2026-22863?
How do I fix CVE-2026-22863?
How Strix Helps
- How Strix found a critical auth bypass in etcdStrix autonomously discovered a critical authentication bypass in etcd, later designated CVE-2026-33413.
- Autonomous PentestingAI agents that find and validate exploitable vulnerabilities like this one across your applications.
- PR ReviewsPentest every pull request so vulnerable code is caught before it ships to production.
- AI Penetration TestingHow AI-driven penetration testing continuously covers your attack surface.
Related CVEs from 2026
- CVE-2026-22858FreeRDP is a free implementation of the Remote Desktop Proto…9.1
- CVE-2026-22859FreeRDP is a free implementation of the Remote Desktop Proto…9.1
- CVE-2026-2286CrewAI contains a server-side request forgery vulnerability …9.8
- CVE-2026-22860Rack is a modular Ruby web server interface. Prior to versio…7.5
- CVE-2026-22861iccDEV provides a set of libraries and tools that allow for …8.8
- CVE-2026-22862go-ethereum (geth) is a golang execution layer implementatio…7.5
- CVE-2026-22864Deno is a JavaScript, TypeScript, and WebAssembly runtime. B…9.8
- CVE-2026-22865Gradle is a build automation tool, and its native-platform t…7.4
- CVE-2026-22866Ethereum Name Service (ENS) is a distributed, open, and exte…7.5
- CVE-2026-22867LaSuite Doc is a collaborative note taking, wiki and documen…5.4
- CVE-2026-22868go-ethereum (geth) is a golang execution layer implementatio…7.5
- CVE-2026-22869Eigent is a multi-agent Workforce. A critical security vulne…9.8
Are you affected by CVE-2026-22863?
Run a free Strix scan to check your systems for this vulnerability.
Scan your code nowSource: NVD / NIST