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CVE PROGRAM SOURCE RECORD8.1 High

CVE-2026-41681

rust-openssl: MdCtxRef::digest_final() writes past caller buffer with no length check

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.

Affected products

Version statuses are supplied by the assigning organization. Consult the original record for detailed ranges and platform conditions.

rust-openssl rust-openssl

  • >= 0.10.39, < 0.10.78affected

References