# CVE-2026-9149: Libsolv: heap buffer overflow in libsolv repo_add_solv via negative maxsize from crafted .solv file CVE-2026-9149 is fixed in 17 products on 1 platform, first by DEBIAN-CVE-2026-9149, released May 21, 2026. It is not reported as exploited. Patch Radar priority: High. - Web page: https://patchblox.com/security/cve/CVE-2026-9149 - Priority: High - CVSS: 7.8 (Moderate) - EPSS: 0.0031 - CISA KEV: not listed - Exploited (vendor report): no - Publicly disclosed: no - Published: May 20, 2026 - Weakness: Heap-based Buffer Overflow - Vendor advisory: https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-9149 ## Description A flaw was found in libsolv. This heap buffer overflow vulnerability occurs when a victim processes a specially crafted `.solv` file containing negative size values in the `repo_add_solv` function. This leads to an undersized memory allocation and a subsequent out-of-bounds write. An attacker could exploit this to cause a denial of service (DoS). ## Where it's fixed | Platform | Product | Fixed in | Fix | Released | |---|---|---|---|---| | Linux | libsolv Debian 14 | 0.7.38-1 | [DEBIAN-CVE-2026-9149](https://patchblox.com/security/data/fix/linux/debian-cve-2026-9149.md) | May 21, 2026 | | Linux | libsolv RHEL 10 | 0.7.29-8.el10_0.1 | [RHSA-2026:48818](https://patchblox.com/security/data/fix/linux/rhsa-2026-48818.md) | Jun 24, 2026 | | Linux | libsolv almalinux 10 | 0.7.33-5.el10_2.alma.1 | [ALSA-2026:28236](https://patchblox.com/security/data/fix/linux/alsa-2026-28236.md) | Jun 23, 2026 | | Linux | libsolv amzn 2023 | 0.7.22-1.amzn2023.0.4 | [ALAS2023-2026-1798](https://patchblox.com/security/data/fix/linux/alas2023-2026-1798.md) | Jun 8, 2026 | | Linux | libsolv ol 10 | 0:0.7.33-5.el10_2 | [ELSA-2026-28236](https://patchblox.com/security/data/fix/linux/elsa-2026-28236.md) | Jul 16, 2026 | | Linux | libsolv opensuse-leap 16.0 | 0.7.39-160000.1.1 | [OPENSUSE-SU-2026:21096-1](https://patchblox.com/security/data/fix/linux/opensuse-su-2026-21096-1.md) | Jun 19, 2026 | | Linux | libsolv rocky 10 | 0:0.7.33-5.el10_2 | [RLSA-2026:28236](https://patchblox.com/security/data/fix/linux/rlsa-2026-28236.md) | Jun 24, 2026 | | Linux | libsolv sles 15.6 | 0.7.39-150600.8.24.1 | [SUSE-SU-2026:2590-1](https://patchblox.com/security/data/fix/linux/suse-su-2026-2590-1.md) | Jun 23, 2026 | | Linux | libsolv sles 15.7 | 0.7.39-150700.11.10.1 | [SUSE-SU-2026:2531-1](https://patchblox.com/security/data/fix/linux/suse-su-2026-2531-1.md) | Jun 23, 2026 | | Linux | libsolv sles 16.0 | 0.7.39-160000.1.1 | [SUSE-SU-2026:22172-1](https://patchblox.com/security/data/fix/linux/suse-su-2026-22172-1.md) | Jun 19, 2026 | | Linux | libsolv-debuginfo amzn 2023 | 0.7.22-1.amzn2023.0.4 | [ALAS2023-2026-1798](https://patchblox.com/security/data/fix/linux/alas2023-2026-1798.md) | Jun 8, 2026 | | Linux | libsolv-debugsource amzn 2023 | 0.7.22-1.amzn2023.0.4 | [ALAS2023-2026-1798](https://patchblox.com/security/data/fix/linux/alas2023-2026-1798.md) | Jun 8, 2026 | | Linux | libsolv-demo amzn 2023 | 0.7.22-1.amzn2023.0.4 | [ALAS2023-2026-1798](https://patchblox.com/security/data/fix/linux/alas2023-2026-1798.md) | Jun 8, 2026 | | Linux | libsolv-demo-debuginfo amzn 2023 | 0.7.22-1.amzn2023.0.4 | [ALAS2023-2026-1798](https://patchblox.com/security/data/fix/linux/alas2023-2026-1798.md) | Jun 8, 2026 | | Linux | libsolv-devel almalinux 10 | 0.7.33-5.el10_2.alma.1 | [ALSA-2026:28236](https://patchblox.com/security/data/fix/linux/alsa-2026-28236.md) | Jun 23, 2026 | | Linux | libsolv-devel amzn 2023 | 0.7.22-1.amzn2023.0.4 | [ALAS2023-2026-1798](https://patchblox.com/security/data/fix/linux/alas2023-2026-1798.md) | Jun 8, 2026 | | Linux | libsolv-devel ol 10 | 0:0.7.33-5.el10_2 | [ELSA-2026-28236](https://patchblox.com/security/data/fix/linux/elsa-2026-28236.md) | Jul 16, 2026 | | Linux | libsolv-tools almalinux 10 | 0.7.33-5.el10_2.alma.1 | [ALSA-2026:28236](https://patchblox.com/security/data/fix/linux/alsa-2026-28236.md) | Jun 23, 2026 | | Linux | libsolv-tools amzn 2023 | 0.7.22-1.amzn2023.0.4 | [ALAS2023-2026-1798](https://patchblox.com/security/data/fix/linux/alas2023-2026-1798.md) | Jun 8, 2026 | | Linux | libsolv-tools ol 10 | 0:0.7.33-5.el10_2 | [ELSA-2026-28236](https://patchblox.com/security/data/fix/linux/elsa-2026-28236.md) | Jul 16, 2026 | | Linux | libsolv-tools-base almalinux 10 | 0.7.33-5.el10_2.alma.1 | [ALSA-2026:28236](https://patchblox.com/security/data/fix/linux/alsa-2026-28236.md) | Jun 23, 2026 | | Linux | libsolv-tools-base ol 10 | 0:0.7.33-5.el10_2 | [ELSA-2026-28236](https://patchblox.com/security/data/fix/linux/elsa-2026-28236.md) | Jul 16, 2026 | | Linux | libsolv-tools-debuginfo amzn 2023 | 0.7.22-1.amzn2023.0.4 | [ALAS2023-2026-1798](https://patchblox.com/security/data/fix/linux/alas2023-2026-1798.md) | Jun 8, 2026 | | Linux | libzypp opensuse-leap 16.0 | 17.38.13-160000.1.1 | [OPENSUSE-SU-2026:21096-1](https://patchblox.com/security/data/fix/linux/opensuse-su-2026-21096-1.md) | Jun 19, 2026 | | Linux | libzypp sles 15.6 | 17.38.13-150600.3.92.1 | [SUSE-SU-2026:2590-1](https://patchblox.com/security/data/fix/linux/suse-su-2026-2590-1.md) | Jun 23, 2026 | | Linux | libzypp sles 15.7 | 17.38.13-150700.6.13.1 | [SUSE-SU-2026:2531-1](https://patchblox.com/security/data/fix/linux/suse-su-2026-2531-1.md) | Jun 23, 2026 | | Linux | libzypp sles 16.0 | 17.38.13-160000.1.1 | [SUSE-SU-2026:22172-1](https://patchblox.com/security/data/fix/linux/suse-su-2026-22172-1.md) | Jun 19, 2026 | | Linux | perl-solv amzn 2023 | 0.7.22-1.amzn2023.0.4 | [ALAS2023-2026-1798](https://patchblox.com/security/data/fix/linux/alas2023-2026-1798.md) | Jun 8, 2026 | | Linux | perl-solv-debuginfo amzn 2023 | 0.7.22-1.amzn2023.0.4 | [ALAS2023-2026-1798](https://patchblox.com/security/data/fix/linux/alas2023-2026-1798.md) | Jun 8, 2026 | | Linux | python3-solv almalinux 10 | 0.7.33-5.el10_2.alma.1 | [ALSA-2026:28236](https://patchblox.com/security/data/fix/linux/alsa-2026-28236.md) | Jun 23, 2026 | | Linux | python3-solv amzn 2023 | 0.7.22-1.amzn2023.0.4 | [ALAS2023-2026-1798](https://patchblox.com/security/data/fix/linux/alas2023-2026-1798.md) | Jun 8, 2026 | | Linux | python3-solv ol 10 | 0:0.7.33-5.el10_2 | [ELSA-2026-28236](https://patchblox.com/security/data/fix/linux/elsa-2026-28236.md) | Jul 16, 2026 | | Linux | python3-solv-debuginfo amzn 2023 | 0.7.22-1.amzn2023.0.4 | [ALAS2023-2026-1798](https://patchblox.com/security/data/fix/linux/alas2023-2026-1798.md) | Jun 8, 2026 | | Linux | ruby-solv amzn 2023 | 0.7.22-1.amzn2023.0.4 | [ALAS2023-2026-1798](https://patchblox.com/security/data/fix/linux/alas2023-2026-1798.md) | Jun 8, 2026 | | Linux | ruby-solv-debuginfo amzn 2023 | 0.7.22-1.amzn2023.0.4 | [ALAS2023-2026-1798](https://patchblox.com/security/data/fix/linux/alas2023-2026-1798.md) | Jun 8, 2026 | | Linux | zypper opensuse-leap 16.0 | 1.14.98-160000.1.1 | [OPENSUSE-SU-2026:21096-1](https://patchblox.com/security/data/fix/linux/opensuse-su-2026-21096-1.md) | Jun 19, 2026 | | Linux | zypper sles 15.7 | 1.14.98-150700.13.6.1 | [SUSE-SU-2026:2531-1](https://patchblox.com/security/data/fix/linux/suse-su-2026-2531-1.md) | Jun 23, 2026 | | Linux | zypper sles 16.0 | 1.14.98-160000.1.1 | [SUSE-SU-2026:22172-1](https://patchblox.com/security/data/fix/linux/suse-su-2026-22172-1.md) | Jun 19, 2026 | --- Data as of 2026-11-08T00:53:09Z UTC. 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