# CVE-2026-41676: rust-openssl: Deriver::derive and PkeyCtxRef::derive can overflow short buffers on OpenSSL 1.1.1

CVE-2026-41676 is fixed in 29 products on 1 platform, first by DEBIAN-CVE-2026-41676, released April 24, 2026. It is not reported as exploited. Patch Radar priority: High.

- Web page: https://patchblox.com/security/cve/CVE-2026-41676
- Priority: High
- CVSS: 7.5 (Important)
- EPSS: 0.0029
- CISA KEV: not listed
- Exploited (vendor report): no
- Publicly disclosed: no
- Published: Apr 24, 2026
- Weakness: Out-of-bounds Write
- Vendor advisory: https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-41676

## Description

This update for aws-nitro-enclaves-cli fixes the following issues:  - CVE-2026-25541: bytes: integer overflow in 'BytesMut:reserve' can lead to undefined behavior and crashes   (bsc#1274300). - CVE-2026-25727: time: parsing of user-provided input by the RFC 2822 date parser can lead to stack exhaustion   (bsc#1257933). - CVE-2026-41676: openssl: `Deriver:derive` and `PkeyCtxRef:derive` can overflow short buffers on OpenSSL 1.1.1   (bsc#1270202).  Changes for aws-nitro-enclaves-cli:  - Update to version 1.5.0

## 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 | aws-nitro-enclaves-cli opensuse-leap 16.0 | 1.5.0~git0.2950b36-160000.1.1 | [OPENSUSE-SU-2026:21782-1](https://patchblox.com/security/data/fix/linux/opensuse-su-2026-21782-1.md) | Sep 7, 2026 |
| Linux | aws-nitro-enclaves-cli sles 15.6 | 1.5.0~git0.2950b36-150600.10.15.1 | [SUSE-SU-2026:3992-1](https://patchblox.com/security/data/fix/linux/suse-su-2026-3992-1.md) | Sep 7, 2026 |
| Linux | aws-nitro-enclaves-cli sles 15.7 | 1.5.0~git0.2950b36-150600.10.15.1 | [SUSE-SU-2026:3992-1](https://patchblox.com/security/data/fix/linux/suse-su-2026-3992-1.md) | Sep 7, 2026 |
| Linux | aws-nitro-enclaves-cli sles 16.0 | 1.5.0~git0.2950b36-160000.1.1 | [SUSE-SU-2026:23659-1](https://patchblox.com/security/data/fix/linux/suse-su-2026-23659-1.md) | Sep 7, 2026 |
| Linux | clamav opensuse-leap 16.0 | 1.5.3-160000.1.1 | [OPENSUSE-SU-2026:21252-1](https://patchblox.com/security/data/fix/linux/opensuse-su-2026-21252-1.md) | Jul 7, 2026 |
| Linux | clamav sles 15.6 | 1.5.3-150600.18.28.1 | [SUSE-SU-2026:2835-1](https://patchblox.com/security/data/fix/linux/suse-su-2026-2835-1.md) | Jul 9, 2026 |
| Linux | clamav sles 15.7 | 1.5.3-150600.18.28.1 | [SUSE-SU-2026:2835-1](https://patchblox.com/security/data/fix/linux/suse-su-2026-2835-1.md) | Jul 9, 2026 |
| Linux | clamav sles 16.0 | 1.5.3-160000.1.1 | [SUSE-SU-2026:22574-1](https://patchblox.com/security/data/fix/linux/suse-su-2026-22574-1.md) | Jul 7, 2026 |
| Linux | clamav1.5 amzn 2023 | 1.5.2-1.amzn2023.0.2 | [ALAS2023-2026-1870](https://patchblox.com/security/data/fix/linux/alas2023-2026-1870.md) | Jun 22, 2026 |
| Linux | clamav1.5-data amzn 2023 | 1.5.2-1.amzn2023.0.2 | [ALAS2023-2026-1870](https://patchblox.com/security/data/fix/linux/alas2023-2026-1870.md) | Jun 22, 2026 |
| Linux | clamav1.5-debuginfo amzn 2023 | 1.5.2-1.amzn2023.0.2 | [ALAS2023-2026-1870](https://patchblox.com/security/data/fix/linux/alas2023-2026-1870.md) | Jun 22, 2026 |
| Linux | clamav1.5-debugsource amzn 2023 | 1.5.2-1.amzn2023.0.2 | [ALAS2023-2026-1870](https://patchblox.com/security/data/fix/linux/alas2023-2026-1870.md) | Jun 22, 2026 |
| Linux | clamav1.5-devel amzn 2023 | 1.5.2-1.amzn2023.0.2 | [ALAS2023-2026-1870](https://patchblox.com/security/data/fix/linux/alas2023-2026-1870.md) | Jun 22, 2026 |
| Linux | clamav1.5-doc amzn 2023 | 1.5.2-1.amzn2023.0.2 | [ALAS2023-2026-1870](https://patchblox.com/security/data/fix/linux/alas2023-2026-1870.md) | Jun 22, 2026 |
| Linux | clamav1.5-filesystem amzn 2023 | 1.5.2-1.amzn2023.0.2 | [ALAS2023-2026-1870](https://patchblox.com/security/data/fix/linux/alas2023-2026-1870.md) | Jun 22, 2026 |
| Linux | clamav1.5-freshclam amzn 2023 | 1.5.2-1.amzn2023.0.2 | [ALAS2023-2026-1870](https://patchblox.com/security/data/fix/linux/alas2023-2026-1870.md) | Jun 22, 2026 |
| Linux | clamav1.5-freshclam-debuginfo amzn 2023 | 1.5.2-1.amzn2023.0.2 | [ALAS2023-2026-1870](https://patchblox.com/security/data/fix/linux/alas2023-2026-1870.md) | Jun 22, 2026 |
| Linux | clamav1.5-lib amzn 2023 | 1.5.2-1.amzn2023.0.2 | [ALAS2023-2026-1870](https://patchblox.com/security/data/fix/linux/alas2023-2026-1870.md) | Jun 22, 2026 |
| Linux | clamav1.5-lib-debuginfo amzn 2023 | 1.5.2-1.amzn2023.0.2 | [ALAS2023-2026-1870](https://patchblox.com/security/data/fix/linux/alas2023-2026-1870.md) | Jun 22, 2026 |
| Linux | clamav1.5-milter amzn 2023 | 1.5.2-1.amzn2023.0.2 | [ALAS2023-2026-1870](https://patchblox.com/security/data/fix/linux/alas2023-2026-1870.md) | Jun 22, 2026 |
| Linux | clamav1.5-milter-debuginfo amzn 2023 | 1.5.2-1.amzn2023.0.2 | [ALAS2023-2026-1870](https://patchblox.com/security/data/fix/linux/alas2023-2026-1870.md) | Jun 22, 2026 |
| Linux | clamd1.5 amzn 2023 | 1.5.2-1.amzn2023.0.2 | [ALAS2023-2026-1870](https://patchblox.com/security/data/fix/linux/alas2023-2026-1870.md) | Jun 22, 2026 |
| Linux | clamd1.5-debuginfo amzn 2023 | 1.5.2-1.amzn2023.0.2 | [ALAS2023-2026-1870](https://patchblox.com/security/data/fix/linux/alas2023-2026-1870.md) | Jun 22, 2026 |
| Linux | cryptsetup sles 15.7 | 2.8.4-150700.6.4.4 | [SUSE-SU-2026:2777-1](https://patchblox.com/security/data/fix/linux/suse-su-2026-2777-1.md) | Jul 6, 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-2026-41676](https://patchblox.com/security/data/fix/linux/debian-cve-2026-41676.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 | s390-tools sles 15.7 | 2.41.0-150700.4.26.2 | [SUSE-SU-2026:2777-1](https://patchblox.com/security/data/fix/linux/suse-su-2026-2777-1.md) | Jul 6, 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 |

---

Data as of 2026-11-08T13:06:02Z UTC. Source: Patchblox Patch Radar (https://patchblox.com/security/patch-radar). Patchblox finds out-of-date software on Windows, macOS and Linux and updates it through release rings: https://patchblox.com/demo

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