Critical severityOSV Advisory· Published Jan 15, 2026· Updated Jan 16, 2026
Deno node:crypto doesn't finalize cipher
CVE-2026-22863
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 packages
Versions sourced from the GitHub Security Advisory.
| Package | Affected versions | Patched versions |
|---|---|---|
denocrates.io | < 2.6.0 | 2.6.0 |
Affected products
1Patches
0No patches discovered yet.
Vulnerability mechanics
AI mechanics synthesis has not run for this CVE yet.
References
4- github.com/advisories/GHSA-5379-f5hf-w38vghsaADVISORY
- nvd.nist.gov/vuln/detail/CVE-2026-22863ghsaADVISORY
- github.com/denoland/deno/releases/tag/v2.6.0ghsax_refsource_MISCWEB
- github.com/denoland/deno/security/advisories/GHSA-5379-f5hf-w38vghsax_refsource_CONFIRMWEB
News mentions
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