# CVE-2026-41681: rust-openssl: MdCtxRef::digest_final() writes past caller buffer with no length check CVE-2026-41681 is fixed in 14 products on 1 platform, first by DEBIAN-CVE-2026-41681, released April 24, 2026. It is not reported as exploited. Patch Radar priority: High. - Web page: https://patchblox.com/security/cve/CVE-2026-41681 - Priority: High - CVSS: 7.5 (Important) - EPSS: 0.0036 - CISA KEV: not listed - Exploited (vendor report): no - Publicly disclosed: no - Published: Apr 24, 2026 - Weakness: Stack-based Buffer Overflow - Vendor advisory: https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-41681 ## 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. ## Where it's fixed | Platform | Product | Fixed in | Fix | Released | |---|---|---|---|---| | Linux | afterburn opensuse-leap 16.0 | 5.10.0.git73.b97f772-160000.1.1 | [OPENSUSE-SU-2026:21386-1](https://patchblox.com/security/data/fix/linux/opensuse-su-2026-21386-1.md) | Jul 20, 2026 | | Linux | afterburn sles 16.0 | 5.10.0.git73.b97f772-160000.1.1 | [SUSE-SU-2026:22827-1](https://patchblox.com/security/data/fix/linux/suse-su-2026-22827-1.md) | Jul 20, 2026 | | Linux | agama opensuse-leap 16.0 | 17+647.daf9950fc-160000.12.1 | [OPENSUSE-SU-2026:21292-1](https://patchblox.com/security/data/fix/linux/opensuse-su-2026-21292-1.md) | Jul 10, 2026 | | Linux | agama sles 16.0 | 17+647.daf9950fc-160000.12.1 | [SUSE-SU-2026:22622-1](https://patchblox.com/security/data/fix/linux/suse-su-2026-22622-1.md) | Jul 10, 2026 | | Linux | aws-nitro-enclaves-cli opensuse-leap 16.0 | 1.4.5~git0.18a5f6f-160000.1.1 | [OPENSUSE-SU-2026:21406-1](https://patchblox.com/security/data/fix/linux/opensuse-su-2026-21406-1.md) | Jul 22, 2026 | | Linux | aws-nitro-enclaves-cli sles 15.6 | 1.4.5~git0.18a5f6f-150600.10.12.1 | [SUSE-SU-2026:3152-1](https://patchblox.com/security/data/fix/linux/suse-su-2026-3152-1.md) | Jul 21, 2026 | | Linux | aws-nitro-enclaves-cli sles 15.7 | 1.4.5~git0.18a5f6f-150600.10.12.1 | [SUSE-SU-2026:3152-1](https://patchblox.com/security/data/fix/linux/suse-su-2026-3152-1.md) | Jul 21, 2026 | | Linux | aws-nitro-enclaves-cli sles 16.0 | 1.4.5~git0.18a5f6f-160000.1.1 | [SUSE-SU-2026:22841-1](https://patchblox.com/security/data/fix/linux/suse-su-2026-22841-1.md) | Jul 22, 2026 | | Linux | himmelblau sles 15.6 | 2.3.14+git0.e23b4c54-150500.11.12.1 | [SUSE-SU-2026:3576-1](https://patchblox.com/security/data/fix/linux/suse-su-2026-3576-1.md) | Aug 11, 2026 | | Linux | libkrun opensuse-leap 16.0 | 1.4.10-160000.3.1 | [OPENSUSE-SU-2026:21464-1](https://patchblox.com/security/data/fix/linux/opensuse-su-2026-21464-1.md) | Jul 28, 2026 | | Linux | python-cryptography opensuse-leap 16.0 | 44.0.3-160000.4.1 | [OPENSUSE-SU-2026:21294-1](https://patchblox.com/security/data/fix/linux/opensuse-su-2026-21294-1.md) | Jul 10, 2026 | | Linux | python-cryptography sles 15.6 | 41.0.3-150600.23.9.1 | [SUSE-SU-2026:3026-1](https://patchblox.com/security/data/fix/linux/suse-su-2026-3026-1.md) | Jul 15, 2026 | | Linux | python-cryptography sles 15.7 | 41.0.3-150600.23.9.1 | [SUSE-SU-2026:3026-1](https://patchblox.com/security/data/fix/linux/suse-su-2026-3026-1.md) | Jul 15, 2026 | | Linux | python-cryptography sles 16.0 | 44.0.3-160000.4.1 | [SUSE-SU-2026:22624-1](https://patchblox.com/security/data/fix/linux/suse-su-2026-22624-1.md) | Jul 10, 2026 | | Linux | python-maturin opensuse-leap 16.0 | 1.8.7-160000.5.1 | [OPENSUSE-SU-2026:21285-1](https://patchblox.com/security/data/fix/linux/opensuse-su-2026-21285-1.md) | Jul 10, 2026 | | Linux | python-maturin sles 16.0 | 1.8.7-160000.5.1 | [SUSE-SU-2026:22615-1](https://patchblox.com/security/data/fix/linux/suse-su-2026-22615-1.md) | Jul 10, 2026 | | Linux | rust-keylime opensuse-leap 16.0 | 0.2.9+49-160000.1.1 | [OPENSUSE-SU-2026:21274-1](https://patchblox.com/security/data/fix/linux/opensuse-su-2026-21274-1.md) | Jul 9, 2026 | | Linux | rust-keylime sles 16.0 | 0.2.9+49-160000.1.1 | [SUSE-SU-2026:22583-1](https://patchblox.com/security/data/fix/linux/suse-su-2026-22583-1.md) | Jul 9, 2026 | | Linux | rust-openssl Debian 14 | 0.10.78-1 | [DEBIAN-CVE-2026-41681](https://patchblox.com/security/data/fix/linux/debian-cve-2026-41681.md) | Apr 24, 2026 | | Linux | rustup opensuse-leap 16.0 | 1.29.1~0-160000.1.1 | [OPENSUSE-SU-2026:22016-1](https://patchblox.com/security/data/fix/linux/opensuse-su-2026-22016-1.md) | Oct 2, 2026 | | Linux | rustup sles 15.6 | 1.28.2~0-150600.10.13.1 | [SUSE-SU-2026:2832-1](https://patchblox.com/security/data/fix/linux/suse-su-2026-2832-1.md) | Jul 9, 2026 | | Linux | rustup sles 15.7 | 1.28.2~0-150600.10.13.1 | [SUSE-SU-2026:2832-1](https://patchblox.com/security/data/fix/linux/suse-su-2026-2832-1.md) | Jul 9, 2026 | | Linux | rustup sles 16.0 | 1.29.1~0-160000.1.1 | [SUSE-SU-2026:24014-1](https://patchblox.com/security/data/fix/linux/suse-su-2026-24014-1.md) | Oct 2, 2026 | | Linux | sccache opensuse-leap 16.0 | 0.18.0~2-160000.1.1 | [OPENSUSE-SU-2026:21982-1](https://patchblox.com/security/data/fix/linux/opensuse-su-2026-21982-1.md) | Sep 30, 2026 | | Linux | sccache sles 15.6 | 0.16.0~0-150600.10.11.1 | [SUSE-SU-2026:3022-1](https://patchblox.com/security/data/fix/linux/suse-su-2026-3022-1.md) | Jul 15, 2026 | | Linux | sccache sles 15.7 | 0.16.0~0-150600.10.11.1 | [SUSE-SU-2026:3022-1](https://patchblox.com/security/data/fix/linux/suse-su-2026-3022-1.md) | Jul 15, 2026 | | Linux | sccache sles 16.0 | 0.18.0~2-160000.1.1 | [SUSE-SU-2026:23983-1](https://patchblox.com/security/data/fix/linux/suse-su-2026-23983-1.md) | Sep 30, 2026 | | Linux | sdbootutil opensuse-leap 16.0 | 1+git20260908.c641fc2-160000.1.1 | [OPENSUSE-SU-2026:21933-1](https://patchblox.com/security/data/fix/linux/opensuse-su-2026-21933-1.md) | Sep 23, 2026 | | Linux | snpguest opensuse-leap 16.0 | 0.10.0-160000.2.1 | [OPENSUSE-SU-2026:21579-1](https://patchblox.com/security/data/fix/linux/opensuse-su-2026-21579-1.md) | Aug 13, 2026 | | Linux | snpguest sles 15.7 | 0.10.0-150700.3.6.1 | [SUSE-SU-2026:3791-1](https://patchblox.com/security/data/fix/linux/suse-su-2026-3791-1.md) | Aug 25, 2026 | | Linux | snpguest sles 16.0 | 0.10.0-160000.2.1 | [SUSE-SU-2026:23236-1](https://patchblox.com/security/data/fix/linux/suse-su-2026-23236-1.md) | Aug 13, 2026 | | Linux | snphost opensuse-leap 16.0 | 0.6.0-160000.3.1 | [OPENSUSE-SU-2026:21638-1](https://patchblox.com/security/data/fix/linux/opensuse-su-2026-21638-1.md) | Aug 24, 2026 | | Linux | snphost sles 15.7 | 0.6.1-150700.3.6.1 | [SUSE-SU-2026:3642-1](https://patchblox.com/security/data/fix/linux/suse-su-2026-3642-1.md) | Aug 18, 2026 | | Linux | snphost sles 16.0 | 0.6.0-160000.3.1 | [SUSE-SU-2026:23327-1](https://patchblox.com/security/data/fix/linux/suse-su-2026-23327-1.md) | Aug 24, 2026 | --- Data as of 2026-11-09T07:25:28Z UTC. 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