# CVE-2025-9086: Out of bounds read for cookie path

CVE-2025-9086 is fixed in 17 products on 2 platforms, first by RHSA-2026:1477, released September 12, 2025. It is not reported as exploited. Patch Radar priority: High.

- Web page: https://patchblox.com/security/cve/CVE-2025-9086
- Priority: High
- CVSS: 7.5 (Moderate)
- EPSS: 0.0146
- CISA KEV: not listed
- Exploited (vendor report): no
- Publicly disclosed: no
- Published: Sep 10, 2025
- Vendor advisory: https://msrc.microsoft.com/update-guide/vulnerability/CVE-2025-9086

## Description

This is a vulnerability in open source code and Apple Software is among the affected projects. The

## Where it's fixed

| Platform | Product | Fixed in | Fix | Released |
|---|---|---|---|---|
| macOS | Sequoia | 15.7.3 | [Sequoia 15.7.3](https://patchblox.com/security/data/fix/macos/sequoia-15.7.3.md) | Dec 12, 2025 |
| macOS | Sonoma | 14.8.3 | [Sonoma 14.8.3](https://patchblox.com/security/data/fix/macos/sonoma-14.8.3.md) | Dec 12, 2025 |
| macOS | Tahoe | 26.2 | [Tahoe 26.2](https://patchblox.com/security/data/fix/macos/tahoe-26.2.md) | Dec 12, 2025 |
| Linux | brotli opensuse-leap 15.6 | 1.0.7-150200.3.5.1 | [SUSE-SU-2025:03268-1](https://patchblox.com/security/data/fix/linux/suse-su-2025-03268-1.md) | Sep 18, 2025 |
| Linux | brotli sles 15.6 | 1.0.7-150200.3.5.1 | [SUSE-SU-2025:03268-1](https://patchblox.com/security/data/fix/linux/suse-su-2025-03268-1.md) | Sep 18, 2025 |
| Linux | brotli sles 15.7 | 1.0.7-150200.3.5.1 | [SUSE-SU-2025:03268-1](https://patchblox.com/security/data/fix/linux/suse-su-2025-03268-1.md) | Sep 18, 2025 |
| Linux | curl Debian 11.6 (bullseye) | 7.74.0-1.3+deb11u16 | [DLA-4432-1](https://patchblox.com/security/data/fix/linux/dla-4432-1.md) | Jan 4, 2026 |
| Linux | curl Debian 13.5 (trixie) | 8.14.1-2+deb13u1 | [DEBIAN-CVE-2025-9086](https://patchblox.com/security/data/fix/linux/debian-cve-2025-9086.md) | Sep 12, 2025 |
| Linux | curl Debian 14 | 8.16.0~rc2-1 | [DEBIAN-CVE-2025-9086](https://patchblox.com/security/data/fix/linux/debian-cve-2025-9086.md) | Sep 12, 2025 |
| Linux | curl RHEL 10 | 8.12.1-1.el10_0.4 | [RHSA-2026:1477](https://patchblox.com/security/data/fix/linux/rhsa-2026-1477.md) | Sep 12, 2025 |
| Linux | curl RHEL 8 | 0:7.61.1-34.el8_10.9 | [RHSA-2025:23383](https://patchblox.com/security/data/fix/linux/rhsa-2025-23383.md) | Jan 16, 2026 |
| Linux | curl RHEL 9 | 0:7.76.1-35.el9_7.3 | [RHSA-2026:1350](https://patchblox.com/security/data/fix/linux/rhsa-2026-1350.md) | Jan 27, 2026 |
| Linux | curl Ubuntu 25.10 (questing) | 8.14.1-2ubuntu1.1 | [curl 8.14.1-2ubuntu1.1](https://patchblox.com/security/data/fix/linux/ubuntu-questing-curl-8.14.1-2ubuntu1.1.md) | Mar 12, 2026 |
| Linux | curl almalinux 10 | 8.12.1-2.el10_1.2 | [ALSA-2026:1825](https://patchblox.com/security/data/fix/linux/alsa-2026-1825.md) | Feb 3, 2026 |
| Linux | curl almalinux 8 | 7.61.1-34.el8_10.9 | [ALSA-2025:23383](https://patchblox.com/security/data/fix/linux/alsa-2025-23383.md) | Dec 16, 2025 |
| Linux | curl almalinux 9 | 7.76.1-35.el9_7.3 | [ALSA-2026:1350](https://patchblox.com/security/data/fix/linux/alsa-2026-1350.md) | Jan 27, 2026 |
| Linux | curl amzn 2023 | 8.15.0-4.amzn2023.0.1 | [ALAS2023-2025-1351](https://patchblox.com/security/data/fix/linux/alas2023-2025-1351.md) | Jan 7, 2026 |
| Linux | curl ol 10 | 0:8.12.1-2.el10_1.2 | [ELSA-2026-1825](https://patchblox.com/security/data/fix/linux/elsa-2026-1825.md) | Feb 3, 2026 |
| Linux | curl ol 8 | 0:7.61.1-34.el8_10.9 | [ELSA-2025-23383](https://patchblox.com/security/data/fix/linux/elsa-2025-23383.md) | Dec 18, 2025 |
| Linux | curl ol 9 | 0:7.76.1-35.el9_7.3 | [ELSA-2026-1350](https://patchblox.com/security/data/fix/linux/elsa-2026-1350.md) | Jan 27, 2026 |
| Linux | curl opensuse-leap 15.6 | 8.14.1-150600.4.28.1 | [SUSE-SU-2025:03198-1](https://patchblox.com/security/data/fix/linux/suse-su-2025-03198-1.md) | Sep 12, 2025 |
| Linux | curl opensuse-leap 16.0 | 8.14.1-160000.3.1 | [OPENSUSE-SU-2025:20090-1](https://patchblox.com/security/data/fix/linux/opensuse-su-2025-20090-1.md) | Nov 26, 2025 |
| Linux | curl rocky 10 | 0:8.12.1-2.el10_1.2 | [RLSA-2026:1825](https://patchblox.com/security/data/fix/linux/rlsa-2026-1825.md) | Feb 6, 2026 |
| Linux | curl rocky 8 | 0:7.61.1-34.el8_10.9 | [RLSA-2025:23383](https://patchblox.com/security/data/fix/linux/rlsa-2025-23383.md) | Dec 19, 2025 |
| Linux | curl rocky 9 | 0:7.76.1-35.el9_7.3 | [RLSA-2026:1350](https://patchblox.com/security/data/fix/linux/rlsa-2026-1350.md) | Jan 30, 2026 |
| Linux | curl sles 15.6 | 8.14.1-150600.4.28.1 | [SUSE-SU-2025:03198-1](https://patchblox.com/security/data/fix/linux/suse-su-2025-03198-1.md) | Sep 12, 2025 |
| Linux | curl sles 15.7 | 8.14.1-150600.4.28.1 | [SUSE-SU-2025:03198-1](https://patchblox.com/security/data/fix/linux/suse-su-2025-03198-1.md) | Sep 12, 2025 |
| Linux | curl sles 16.0 | 8.14.1-160000.3.1 | [SUSE-SU-2025:21145-1](https://patchblox.com/security/data/fix/linux/suse-su-2025-21145-1.md) | Nov 26, 2025 |
| Linux | curl-debuginfo amzn 2023 | 8.15.0-4.amzn2023.0.1 | [ALAS2023-2025-1351](https://patchblox.com/security/data/fix/linux/alas2023-2025-1351.md) | Jan 7, 2026 |
| Linux | curl-debugsource amzn 2023 | 8.15.0-4.amzn2023.0.1 | [ALAS2023-2025-1351](https://patchblox.com/security/data/fix/linux/alas2023-2025-1351.md) | Jan 7, 2026 |
| Linux | curl-mini sles 16.0 | 8.14.1-160000.3.1 | [SUSE-SU-2025:21145-1](https://patchblox.com/security/data/fix/linux/suse-su-2025-21145-1.md) | Nov 26, 2025 |
| Linux | curl-minimal RHEL 9 | 0:7.76.1-35.el9_7.3 | [RHSA-2026:1350](https://patchblox.com/security/data/fix/linux/rhsa-2026-1350.md) | Jan 27, 2026 |
| Linux | curl-minimal almalinux 9 | 7.76.1-35.el9_7.3 | [ALSA-2026:1350](https://patchblox.com/security/data/fix/linux/alsa-2026-1350.md) | Jan 27, 2026 |
| Linux | curl-minimal amzn 2023 | 8.15.0-4.amzn2023.0.1 | [ALAS2023-2025-1351](https://patchblox.com/security/data/fix/linux/alas2023-2025-1351.md) | Jan 7, 2026 |
| Linux | curl-minimal ol 9 | 0:7.76.1-35.el9_7.3 | [ELSA-2026-1350](https://patchblox.com/security/data/fix/linux/elsa-2026-1350.md) | Jan 27, 2026 |
| Linux | curl-minimal-debuginfo amzn 2023 | 8.15.0-4.amzn2023.0.1 | [ALAS2023-2025-1351](https://patchblox.com/security/data/fix/linux/alas2023-2025-1351.md) | Jan 7, 2026 |
| Linux | libcurl RHEL 8 | 0:7.61.1-34.el8_10.9 | [RHSA-2025:23383](https://patchblox.com/security/data/fix/linux/rhsa-2025-23383.md) | Jan 16, 2026 |
| Linux | libcurl RHEL 9 | 0:7.76.1-35.el9_7.3 | [RHSA-2026:1350](https://patchblox.com/security/data/fix/linux/rhsa-2026-1350.md) | Jan 27, 2026 |
| Linux | libcurl almalinux 10 | 8.12.1-2.el10_1.2 | [ALSA-2026:1825](https://patchblox.com/security/data/fix/linux/alsa-2026-1825.md) | Feb 3, 2026 |
| Linux | libcurl almalinux 8 | 7.61.1-34.el8_10.9 | [ALSA-2025:23383](https://patchblox.com/security/data/fix/linux/alsa-2025-23383.md) | Dec 16, 2025 |
| Linux | libcurl almalinux 9 | 7.76.1-35.el9_7.3 | [ALSA-2026:1350](https://patchblox.com/security/data/fix/linux/alsa-2026-1350.md) | Jan 27, 2026 |
| Linux | libcurl amzn 2023 | 8.15.0-4.amzn2023.0.1 | [ALAS2023-2025-1351](https://patchblox.com/security/data/fix/linux/alas2023-2025-1351.md) | Jan 7, 2026 |
| Linux | libcurl ol 10 | 0:8.12.1-2.el10_1.2 | [ELSA-2026-1825](https://patchblox.com/security/data/fix/linux/elsa-2026-1825.md) | Feb 3, 2026 |
| Linux | libcurl ol 8 | 0:7.61.1-34.el8_10.9 | [ELSA-2025-23383](https://patchblox.com/security/data/fix/linux/elsa-2025-23383.md) | Dec 18, 2025 |
| Linux | libcurl ol 9 | 0:7.76.1-35.el9_7.3 | [ELSA-2026-1350](https://patchblox.com/security/data/fix/linux/elsa-2026-1350.md) | Jan 27, 2026 |
| Linux | libcurl-debuginfo amzn 2023 | 8.15.0-4.amzn2023.0.1 | [ALAS2023-2025-1351](https://patchblox.com/security/data/fix/linux/alas2023-2025-1351.md) | Jan 7, 2026 |
| Linux | libcurl-devel RHEL 8 | 0:7.61.1-34.el8_10.9 | [RHSA-2025:23383](https://patchblox.com/security/data/fix/linux/rhsa-2025-23383.md) | Jan 16, 2026 |
| Linux | libcurl-devel RHEL 9 | 0:7.76.1-35.el9_7.3 | [RHSA-2026:1350](https://patchblox.com/security/data/fix/linux/rhsa-2026-1350.md) | Jan 27, 2026 |
| Linux | libcurl-devel almalinux 10 | 8.12.1-2.el10_1.2 | [ALSA-2026:1825](https://patchblox.com/security/data/fix/linux/alsa-2026-1825.md) | Feb 3, 2026 |
| Linux | libcurl-devel almalinux 8 | 7.61.1-34.el8_10.9 | [ALSA-2025:23383](https://patchblox.com/security/data/fix/linux/alsa-2025-23383.md) | Dec 16, 2025 |
| Linux | libcurl-devel almalinux 9 | 7.76.1-35.el9_7.3 | [ALSA-2026:1350](https://patchblox.com/security/data/fix/linux/alsa-2026-1350.md) | Jan 27, 2026 |
| Linux | libcurl-devel amzn 2023 | 8.15.0-4.amzn2023.0.1 | [ALAS2023-2025-1351](https://patchblox.com/security/data/fix/linux/alas2023-2025-1351.md) | Jan 7, 2026 |
| Linux | libcurl-devel ol 10 | 0:8.12.1-2.el10_1.2 | [ELSA-2026-1825](https://patchblox.com/security/data/fix/linux/elsa-2026-1825.md) | Feb 3, 2026 |
| Linux | libcurl-devel ol 8 | 0:7.61.1-34.el8_10.9 | [ELSA-2025-23383](https://patchblox.com/security/data/fix/linux/elsa-2025-23383.md) | Dec 18, 2025 |
| Linux | libcurl-devel ol 9 | 0:7.76.1-35.el9_7.3 | [ELSA-2026-1350](https://patchblox.com/security/data/fix/linux/elsa-2026-1350.md) | Jan 27, 2026 |
| Linux | libcurl-minimal RHEL 8 | 0:7.61.1-34.el8_10.9 | [RHSA-2025:23383](https://patchblox.com/security/data/fix/linux/rhsa-2025-23383.md) | Jan 16, 2026 |
| Linux | libcurl-minimal RHEL 9 | 0:7.76.1-35.el9_7.3 | [RHSA-2026:1350](https://patchblox.com/security/data/fix/linux/rhsa-2026-1350.md) | Jan 27, 2026 |
| Linux | libcurl-minimal almalinux 10 | 8.12.1-2.el10_1.2 | [ALSA-2026:1825](https://patchblox.com/security/data/fix/linux/alsa-2026-1825.md) | Feb 3, 2026 |
| Linux | libcurl-minimal almalinux 8 | 7.61.1-34.el8_10.9 | [ALSA-2025:23383](https://patchblox.com/security/data/fix/linux/alsa-2025-23383.md) | Dec 16, 2025 |
| Linux | libcurl-minimal almalinux 9 | 7.76.1-35.el9_7.3 | [ALSA-2026:1350](https://patchblox.com/security/data/fix/linux/alsa-2026-1350.md) | Jan 27, 2026 |
| Linux | libcurl-minimal amzn 2023 | 8.15.0-4.amzn2023.0.1 | [ALAS2023-2025-1351](https://patchblox.com/security/data/fix/linux/alas2023-2025-1351.md) | Jan 7, 2026 |
| Linux | libcurl-minimal ol 10 | 0:8.12.1-2.el10_1.2 | [ELSA-2026-1825](https://patchblox.com/security/data/fix/linux/elsa-2026-1825.md) | Feb 3, 2026 |
| Linux | libcurl-minimal ol 8 | 0:7.61.1-34.el8_10.9 | [ELSA-2025-23383](https://patchblox.com/security/data/fix/linux/elsa-2025-23383.md) | Dec 18, 2025 |
| Linux | libcurl-minimal ol 9 | 0:7.76.1-35.el9_7.3 | [ELSA-2026-1350](https://patchblox.com/security/data/fix/linux/elsa-2026-1350.md) | Jan 27, 2026 |
| Linux | libcurl-minimal-debuginfo amzn 2023 | 8.15.0-4.amzn2023.0.1 | [ALAS2023-2025-1351](https://patchblox.com/security/data/fix/linux/alas2023-2025-1351.md) | Jan 7, 2026 |
| Linux | libcurl3t64-gnutls Ubuntu 25.10 (questing) | 8.14.1-2ubuntu1.1 | [libcurl3t64-gnutls 8.14.1-2ubuntu1.1](https://patchblox.com/security/data/fix/linux/ubuntu-questing-libcurl3t64-gnutls-8.14.1-2ubuntu1.1.md) | Mar 12, 2026 |
| Linux | libcurl4t64 Ubuntu 25.10 (questing) | 8.14.1-2ubuntu1.1 | [libcurl4t64 8.14.1-2ubuntu1.1](https://patchblox.com/security/data/fix/linux/ubuntu-questing-libcurl4t64-8.14.1-2ubuntu1.1.md) | Mar 12, 2026 |

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