🛡️ CVE-2026-41898
🔴 CVSS 9.8 — Critical ✅ No Known Exploit CWE-126 NVD
9.8
CVSS Score
0 Low4 Medium7 High9 Critical10

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.

Details

Severity HIGH
CVSS Score 9.8
CVSS Vector CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
CWE CWE-126
Public Exploit ✅ No
Source NVD
Published 2026-04-22
Updated 2026-06-02
Modified 2026-05-06

Affected Packages

Software From version Fixed in
openssl — —
rust-openssl 0.9.24 0.10.78

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