rust-openssl: Unchecked callback-returned length in PSK and cookie generate trampolines can cause OpenSSL to leak adjacent memory to the network peer_CVE-2026-41898

{
    "lastseen": "",
    "description": "rust-openssl provides OpenSSL bindings for the Rust programming language.  From 0.9.24 to before 0.10.78, the FFI trampolines behind SslContextBuilder::set_psk_client_callback, set_psk_server_callback, set_cookie_generate_cb, and set_stateless_cookie_generate_cb forwarded the user closure's returned usize directly to OpenSSL without checking it against the &mut [u8] that was handed to the closure. This can lead to buffer overflows and other unintended consequences. This vulnerability is fixed in 0.10.78.",
    "published": "2026-04-24T17:20:38.073Z",
    "modified": "2026-04-24T18:01:47.877Z",
    "type": "cve",
    "title": "rust-openssl: Unchecked callback-returned length in PSK and cookie generate trampolines can cause OpenSSL to leak adjacent memory to the network peer",
    "source": "GitHub_M",
    "references": "https://github.com/rust-openssl/rust-openssl/security/advisories/GHSA-hppc-g8h3-xhp3\nhttps://github.com/rust-openssl/rust-openssl/pull/2607\nhttps://github.com/rust-openssl/rust-openssl/commit/1d109020d98fff2fb2e45c39a373af3dff99b24c\nhttps://github.com/rust-openssl/rust-openssl/releases/tag/openssl-v0.10.78",
    "id": "CVE-2026-41898",
    "bulletinFamily": "",
    "cwe": [
        "CWE-126",
        "CWE-130"
    ],
    "cvelist": null,
    "sourceData": "rust-openssl rust-openssl >= 0.9.24, < 0.10.78",
    "sourceHref": "",
    "cvss": {
        "score": 8.3,
        "severity": "HIGH",
        "vector": "CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:H/VI:N/VA:L/SC:N/SI:N/SA:N",
        "version": "4.0"
    },
    "cvss2": [],
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        "baseScore": 0,
        "baseSeverity": "",
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        "privilegesRequired": "",
        "userInteraction": "",
        "scope": "",
        "confidentialityImpact": "",
        "integrityImpact": "",
        "availabilityImpact": "",
        "cvssV3": {
            "version": "",
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            "baseScore": 0,
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        }
    },
    "href": "",
    "category_name": "CVE",
    "post_link": "",
    "product": "rust-openssl",
    "version": ">= 0.9.24, < 0.10.78",
    "vendor": "rust-openssl",
    "ai_description": "",
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    "ai_score": 0
}