Deno node:crypto doesn’t finalize cipher_CVE-2026-22863

{
    "lastseen": "",
    "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.",
    "published": "2026-01-15T22:53:15.357Z",
    "modified": "2026-01-15T22:53:15.357Z",
    "type": "cve",
    "title": "Deno node:crypto doesn't finalize cipher",
    "source": "GitHub_M",
    "references": "https://github.com/denoland/deno/security/advisories/GHSA-5379-f5hf-w38v\nhttps://github.com/denoland/deno/releases/tag/v2.6.0",
    "id": "CVE-2026-22863",
    "bulletinFamily": "",
    "cwe": [
        "CWE-325"
    ],
    "cvelist": null,
    "sourceData": "denoland deno < 2.6.0",
    "sourceHref": "",
    "cvss": {
        "score": 9.2,
        "severity": "CRITICAL",
        "vector": "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",
        "version": "4.0"
    },
    "cvss2": [],
    "cvss3": {
        "version": "",
        "vectorString": "",
        "baseScore": 0,
        "baseSeverity": "",
        "attackVector": "",
        "attackComplexity": "",
        "privilegesRequired": "",
        "userInteraction": "",
        "scope": "",
        "confidentialityImpact": "",
        "integrityImpact": "",
        "availabilityImpact": "",
        "cvssV3": {
            "version": "",
            "vectorString": "",
            "baseScore": 0,
            "baseSeverity": "",
            "attackVector": "",
            "attackComplexity": "",
            "privilegesRequired": "",
            "userInteraction": "",
            "scope": "",
            "confidentialityImpact": "",
            "integrityImpact": "",
            "availabilityImpact": ""
        }
    },
    "href": "",
    "category_name": "CVE",
    "post_link": "",
    "product": "deno",
    "version": "< 2.6.0",
    "vendor": "denoland",
    "ai_description": "The node:crypto module in Deno doesn't finalize cipher, allowing an attacker to have infinite encryptions and potentially brute force or refine attacks to learn server secrets.",
    "ai_severity": "Critical",
    "ai_vendor": "DenoLand",
    "ai_product": "Deno",
    "ai_version": "< 2.6.0",
    "ai_score": 9.2
}