# CVE-2025-6176: brotli: Scrapy versions up to 2.13.2 are vulnerable to a denial of service (DoS) attack due to a flaw in its brotli decompres... CVE-2025-6176 is fixed in 6 products on 1 platform, first by RHSA-2026:0008, released October 31, 2025. It is not reported as exploited. Patch Radar priority: High. - Web page: https://patchblox.com/security/cve/CVE-2025-6176 - Priority: High - CVSS: 7.5 (important) - EPSS: 0.0053 - CISA KEV: not listed - Exploited (vendor report): no - Publicly disclosed: no - Published: Oct 31, 2025 ## Description Scrapy versions up to 2.13.2 are vulnerable to a denial of service (DoS) attack due to a flaw in its brotli decompression implementation. The protection mechanism against decompression bombs fails to mitigate the brotli variant, allowing remote servers to crash clients with less than 80GB of available memory. This occurs because brotli can achieve extremely high compression ratios for zero-filled data, leading to excessive memory consumption during decompression. ## Where it's fixed | Platform | Product | Fixed in | Fix | Released | |---|---|---|---|---| | Linux | brotli RHEL 10 | 1.1.0-6.el10_0.1 | [RHSA-2026:0008](https://patchblox.com/security/data/fix/linux/rhsa-2026-0008.md) | Oct 31, 2025 | | Linux | brotli RHEL 8 | 0:1.0.6-4.el8_10 | [RHSA-2026:2389](https://patchblox.com/security/data/fix/linux/rhsa-2026-2389.md) | Feb 10, 2026 | | Linux | brotli RHEL 9 | 0:1.0.9-9.el9_7 | [RHSA-2026:2042](https://patchblox.com/security/data/fix/linux/rhsa-2026-2042.md) | Feb 5, 2026 | | Linux | brotli almalinux 10 | 1.1.0-7.el10_1 | [ALSA-2026:0845](https://patchblox.com/security/data/fix/linux/alsa-2026-0845.md) | Jan 20, 2026 | | Linux | brotli almalinux 8 | 1.0.6-4.el8_10 | [ALSA-2026:2389](https://patchblox.com/security/data/fix/linux/alsa-2026-2389.md) | Feb 10, 2026 | | Linux | brotli almalinux 9 | 1.0.9-9.el9_7 | [ALSA-2026:2042](https://patchblox.com/security/data/fix/linux/alsa-2026-2042.md) | Feb 5, 2026 | | Linux | brotli ol 10 | 0:1.1.0-7.el10_1 | [ELSA-2026-0845](https://patchblox.com/security/data/fix/linux/elsa-2026-0845.md) | Jan 20, 2026 | | Linux | brotli ol 8 | 0:1.0.6-4.el8_10 | [ELSA-2026-2389](https://patchblox.com/security/data/fix/linux/elsa-2026-2389.md) | Feb 10, 2026 | | Linux | brotli ol 9 | 0:1.0.9-9.el9_7 | [ELSA-2026-2042](https://patchblox.com/security/data/fix/linux/elsa-2026-2042.md) | Feb 5, 2026 | | Linux | brotli rocky 10 | 0:1.1.0-7.el10_1 | [RLSA-2026:0845](https://patchblox.com/security/data/fix/linux/rlsa-2026-0845.md) | Jan 21, 2026 | | Linux | brotli rocky 8 | 0:1.0.6-4.el8_10 | [RLSA-2026:2389](https://patchblox.com/security/data/fix/linux/rlsa-2026-2389.md) | Feb 11, 2026 | | Linux | brotli rocky 9 | 0:1.0.9-9.el9_7 | [RLSA-2026:2042](https://patchblox.com/security/data/fix/linux/rlsa-2026-2042.md) | Feb 7, 2026 | | Linux | brotli-devel RHEL 8 | 0:1.0.6-4.el8_10 | [RHSA-2026:2389](https://patchblox.com/security/data/fix/linux/rhsa-2026-2389.md) | Feb 10, 2026 | | Linux | brotli-devel RHEL 9 | 0:1.0.9-9.el9_7 | [RHSA-2026:2042](https://patchblox.com/security/data/fix/linux/rhsa-2026-2042.md) | Feb 5, 2026 | | Linux | brotli-devel almalinux 10 | 1.1.0-7.el10_1 | [ALSA-2026:0845](https://patchblox.com/security/data/fix/linux/alsa-2026-0845.md) | Jan 20, 2026 | | Linux | brotli-devel almalinux 8 | 1.0.6-4.el8_10 | [ALSA-2026:2389](https://patchblox.com/security/data/fix/linux/alsa-2026-2389.md) | Feb 10, 2026 | | Linux | brotli-devel almalinux 9 | 1.0.9-9.el9_7 | [ALSA-2026:2042](https://patchblox.com/security/data/fix/linux/alsa-2026-2042.md) | Feb 5, 2026 | | Linux | brotli-devel ol 10 | 0:1.1.0-7.el10_1 | [ELSA-2026-0845](https://patchblox.com/security/data/fix/linux/elsa-2026-0845.md) | Jan 20, 2026 | | Linux | brotli-devel ol 8 | 0:1.0.6-4.el8_10 | [ELSA-2026-2389](https://patchblox.com/security/data/fix/linux/elsa-2026-2389.md) | Feb 10, 2026 | | Linux | brotli-devel ol 9 | 0:1.0.9-9.el9_7 | [ELSA-2026-2042](https://patchblox.com/security/data/fix/linux/elsa-2026-2042.md) | Feb 5, 2026 | | Linux | libbrotli RHEL 9 | 0:1.0.9-9.el9_7 | [RHSA-2026:2042](https://patchblox.com/security/data/fix/linux/rhsa-2026-2042.md) | Feb 5, 2026 | | Linux | libbrotli almalinux 10 | 1.1.0-7.el10_1 | [ALSA-2026:0845](https://patchblox.com/security/data/fix/linux/alsa-2026-0845.md) | Jan 20, 2026 | | Linux | libbrotli almalinux 9 | 1.0.9-9.el9_7 | [ALSA-2026:2042](https://patchblox.com/security/data/fix/linux/alsa-2026-2042.md) | Feb 5, 2026 | | Linux | libbrotli ol 10 | 0:1.1.0-7.el10_1 | [ELSA-2026-0845](https://patchblox.com/security/data/fix/linux/elsa-2026-0845.md) | Jan 20, 2026 | | Linux | libbrotli ol 9 | 0:1.0.9-9.el9_7 | [ELSA-2026-2042](https://patchblox.com/security/data/fix/linux/elsa-2026-2042.md) | Feb 5, 2026 | | Linux | python-Brotli opensuse-leap 16.0 | 1.2.1-160000.1.1 | [OPENSUSE-SU-2026:22183-1](https://patchblox.com/security/data/fix/linux/opensuse-su-2026-22183-1.md) | Nov 7, 2026 | | Linux | python-scrapy Debian 14 | 2.13.4-1 | [DEBIAN-CVE-2025-6176](https://patchblox.com/security/data/fix/linux/debian-cve-2025-6176.md) | Oct 31, 2025 | | Linux | python3-brotli RHEL 8 | 0:1.0.6-4.el8_10 | [RHSA-2026:2389](https://patchblox.com/security/data/fix/linux/rhsa-2026-2389.md) | Feb 10, 2026 | | Linux | python3-brotli RHEL 9 | 0:1.0.9-9.el9_7 | [RHSA-2026:2042](https://patchblox.com/security/data/fix/linux/rhsa-2026-2042.md) | Feb 5, 2026 | | Linux | python3-brotli almalinux 10 | 1.1.0-7.el10_1 | [ALSA-2026:0845](https://patchblox.com/security/data/fix/linux/alsa-2026-0845.md) | Jan 20, 2026 | | Linux | python3-brotli almalinux 8 | 1.0.6-4.el8_10 | [ALSA-2026:2389](https://patchblox.com/security/data/fix/linux/alsa-2026-2389.md) | Feb 10, 2026 | | Linux | python3-brotli almalinux 9 | 1.0.9-9.el9_7 | [ALSA-2026:2042](https://patchblox.com/security/data/fix/linux/alsa-2026-2042.md) | Feb 5, 2026 | | Linux | python3-brotli ol 10 | 0:1.1.0-7.el10_1 | [ELSA-2026-0845](https://patchblox.com/security/data/fix/linux/elsa-2026-0845.md) | Jan 20, 2026 | | Linux | python3-brotli ol 8 | 0:1.0.6-4.el8_10 | [ELSA-2026-2389](https://patchblox.com/security/data/fix/linux/elsa-2026-2389.md) | Feb 10, 2026 | | Linux | python3-brotli ol 9 | 0:1.0.9-9.el9_7 | [ELSA-2026-2042](https://patchblox.com/security/data/fix/linux/elsa-2026-2042.md) | Feb 5, 2026 | --- Data as of 2026-11-08T19:12:23Z UTC. 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