CVE-2026-41681
rust-openssl: MdCtxRef::digest_final() writes past caller buffer with no length check
CVSS Score
0.0
EPSS Score
0.0%
EPSS Percentile
0th
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.
| CWE | CWE-121 |
| Vendor | rust-openssl |
| Product | rust-openssl |
| Published | Apr 24, 2026 |
| Last Updated | Apr 24, 2026 |
Stay Ahead of the Next One
Get instant alerts for rust-openssl rust-openssl
Be the first to know when new unknown vulnerabilities affecting rust-openssl rust-openssl are published — delivered to Slack, Telegram or Discord.
Get Free Alerts →
Free · No credit card · 60 sec setup
Affected Versions
rust-openssl / rust-openssl
>= 0.10.39, < 0.10.78
References
github.com: https://github.com/rust-openssl/rust-openssl/security/advisories/GHSA-ghm9-cr32-g9qj github.com: https://github.com/rust-openssl/rust-openssl/pull/2608 github.com: https://github.com/rust-openssl/rust-openssl/commit/826c3888b77add418b394770e2b2e3a72d9f92fe github.com: https://github.com/rust-openssl/rust-openssl/releases/tag/openssl-v0.10.78