CVE-2026-41681
High
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.
SeverityHigh
CVSS7.5
Exploit probability—
ProductRust-openssl
PublishedApr 24, 2026
First seenApr 24, 2026
Weakness typeCWE-121CWE-121
How to fix
Update
- rust-openssl_project rust-openssl0.10.78 or later
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| rust-openssl_project rust-openssl | 0.10.39 ≤ v < 0.10.78 | 0.10.78 |
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