Buffer overflow in Rust-openssl
CVE-2026-41681
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…
Vulnerability class: Buffer Overflow
EPSS: 0.004 (28.2th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 7.5 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H.
Affected products
- Rust-openssl — versions >= 0.10.39, < 0.10.78
- Rust-openssl_project Rust-openssl
Weakness classification (CWE)
References
- security-advisories@github.com (x_refsource_CONFIRM, Vendor Advisory)
- security-advisories@github.com (x_refsource_MISC, Issue Tracking)
- security-advisories@github.com (Patch, x_refsource_MISC)
- security-advisories@github.com (x_refsource_MISC, Release Notes)
Frequently asked questions
- What is CVE-2026-41681?
- CVE-2026-41681 is a high-severity vulnerability in Rust-openssl, classified under Stack-based Buffer Overflow. CVSS score: 7.5/10. Published 2026-04-24.
- How severe is CVE-2026-41681?
- High severity. CVSS v3 base score is 7.5 out of 10.