rust-openssl: MdCtxRef::digest_final() writes past caller buffer with no length check_CVE-2026-41681

{
    "lastseen": "",
    "description": "rust-openssl provides OpenSSL bindings for the Rust programming language.  From 0.10.39 to before 0.10.78, EVP_DigestFinal() always writes EVP_MD_CTX_size(ctx) to the out buffer. If out is smaller than that, MdCtxRef::digest_final() writes past its end, usually corrupting the stack. This is reachable from safe Rust. This vulnerability is fixed in 0.10.78.",
    "published": "2026-04-24T17:19:15.187Z",
    "modified": "2026-04-24T17:42:54.765Z",
    "type": "cve",
    "title": "rust-openssl: MdCtxRef::digest_final() writes past caller buffer with no length check",
    "source": "GitHub_M",
    "references": "https://github.com/rust-openssl/rust-openssl/security/advisories/GHSA-ghm9-cr32-g9qj\nhttps://github.com/rust-openssl/rust-openssl/pull/2608\nhttps://github.com/rust-openssl/rust-openssl/commit/826c3888b77add418b394770e2b2e3a72d9f92fe\nhttps://github.com/rust-openssl/rust-openssl/releases/tag/openssl-v0.10.78",
    "id": "CVE-2026-41681",
    "bulletinFamily": "",
    "cwe": [
        "CWE-121"
    ],
    "cvelist": null,
    "sourceData": "rust-openssl rust-openssl >= 0.10.39, < 0.10.78",
    "sourceHref": "",
    "cvss": {
        "score": 8.1,
        "severity": "HIGH",
        "vector": "CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U",
        "version": "4.0"
    },
    "cvss2": [],
    "cvss3": {
        "version": "",
        "vectorString": "",
        "baseScore": 0,
        "baseSeverity": "",
        "attackVector": "",
        "attackComplexity": "",
        "privilegesRequired": "",
        "userInteraction": "",
        "scope": "",
        "confidentialityImpact": "",
        "integrityImpact": "",
        "availabilityImpact": "",
        "cvssV3": {
            "version": "",
            "vectorString": "",
            "baseScore": 0,
            "baseSeverity": "",
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            "privilegesRequired": "",
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            "confidentialityImpact": "",
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            "availabilityImpact": ""
        }
    },
    "href": "",
    "category_name": "CVE",
    "post_link": "",
    "product": "rust-openssl",
    "version": ">= 0.10.39, < 0.10.78",
    "vendor": "rust-openssl",
    "ai_description": "",
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    "ai_score": 0
}