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CVE-2026-41898

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

Description (CNA)

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.

Affected (CNA)

Vendor / productVersions
rust-openssl / rust-opensslaffected >= 0.9.24, < 0.10.78

CWE

CWE-126, CWE-130

References

ADP enrichment

CISA-ADP

No English description supplied.

No references supplied.