Fluid Attacks Database

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.

Mitigation

Update Impact

Minimal update. May introduce new vulnerabilities or breaking changes.

Ecosystem	Package	Affected version	Patched versions
debian 11	rust-openssl	=0.10.29-1 \|\| =0.10.29-1+deb11u1 \|\| =0.10.36-1 \|\| =0.10.41-1 \|\| =0.10.45-1 \|\| =0.10.57-1 \|\| =0.10.64-1 \|\| =0.10.68-1 \|\| =0.10.70-1 \|\| =0.10.72-1 \|\| =0.10.73-1 \|\| =0.10.78-1 \|\| =0.10.79-1	-
debian 12	rust-openssl	=0.10.45-1 \|\| =0.10.57-1 \|\| =0.10.64-1 \|\| =0.10.68-1 \|\| =0.10.70-1 \|\| =0.10.72-1 \|\| =0.10.73-1 \|\| =0.10.78-1 \|\| =0.10.79-1	-
debian 14	rust-openssl	=0.10.72-1 \|\| =0.10.73-1 \|\| >=0 <0.10.78-1	0.10.78-1
debian 13	rust-openssl	=0.10.72-1 \|\| =0.10.73-1 \|\| =0.10.78-1 \|\| =0.10.79-1	-
cargo	openssl	>=0.9.24 <0.10.78	0.10.78

Aliases

1. CVE-2026-418982. NVD-2026-418983. OSV-DEBIAN-2026-418984. OSV-2026-418985. GHSA-hppc-g8h3-xhp36. GCVE-2026-418987. SECURITY-TRACKER-CVE-2026-41898

References

1. https://github.com/rust-openssl/rust-openssl/security/advisories/GHSA-hppc-g8h3-xhp32. https://github.com/rust-openssl/rust-openssl/pull/26073. https://github.com/rust-openssl/rust-openssl/commit/1d109020d98fff2fb2e45c39a373af3dff99b24c4. https://github.com/rust-openssl/rust-openssl/releases/tag/openssl-v0.10.78

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