# Google Brotli vulnerabilities Source: https://junglewise.ai/threats/technologies/brotli Publisher: Junglewise Threat Intelligence, https://junglewise.ai/threats Updated: 12 November 2026, 03:07 UTC. Rebuilt every hour. Data: https://junglewise.ai/threats/technologies/brotli.json License: CC BY 4.0 with a link back Junglewise Threat Intelligence has tracked 3 vulnerabilities in Google Brotli: 0 in the last 7 days and 1 in the last 90 days, 1 of them critical and 1 exploited in the wild. The most recent, CVE-2026-111497, was published on 22 October 2026. 1 vulnerability in the last four weeks, up from none in the four before. 1 critical against 0, 1 exploited in the wild against 0. ## Counts - Last 7 days: 0 - Last 30 days: 1 - Last 90 days: 1 - All time: 3 (1 critical, 1 exploited in the wild) ## About Google Brotli Google compression library implementing the Brotli algorithm for data compression. ## Latest Google Brotli vulnerabilities - [CVE-2026-111497: Google Brotli buffer overflow in decoder](https://junglewise.ai/threats/cve-2026-111497-a-buffer-overflow-vulnerability-in-the-brotli-decoder-c-dec) (critical, exploited in the wild, CVSS 4, published 22 Oct 2026) - [CVE-2025-6176: PYSEC-2026-2401 - Scrapy is vulnerable to a denial of service (DoS) attack due to flaws in brotli decompression…](https://junglewise.ai/threats/cve-2025-6176-scrapy-denial-of-service-via-brotli-decompression-bomb) (low, CVSS 3, published 13 Jul 2026) - [CVE-2025-66471: urllib3 streaming API improper compression handling](https://junglewise.ai/threats/cve-2025-66471-urllib3-streaming-api-improper-compression-handling) (high, CVSS 7.5, published 5 Dec 2025) ## Most severe Google Brotli vulnerabilities - [CVE-2026-111497: Google Brotli buffer overflow in decoder](https://junglewise.ai/threats/cve-2026-111497-a-buffer-overflow-vulnerability-in-the-brotli-decoder-c-dec) (critical, exploited in the wild, CVSS 4, published 22 Oct 2026) - [CVE-2025-66471: urllib3 streaming API improper compression handling](https://junglewise.ai/threats/cve-2025-66471-urllib3-streaming-api-improper-compression-handling) (high, CVSS 7.5, published 5 Dec 2025) - [CVE-2025-6176: PYSEC-2026-2401 - Scrapy is vulnerable to a denial of service (DoS) attack due to flaws in brotli decompression…](https://junglewise.ai/threats/cve-2025-6176-scrapy-denial-of-service-via-brotli-decompression-bomb) (low, CVSS 3, published 13 Jul 2026) ## Vulnerabilities per week 1 vulnerability in the last four weeks, up from none in the four before. 1 critical against 0, 1 exploited in the wild against 0. | Week of | Vulns | Critical | Exploited | | --- | --- | --- | --- | | 17 Aug 2026 | 0 | 0 | 0 | | 24 Aug 2026 | 0 | 0 | 0 | | 31 Aug 2026 | 0 | 0 | 0 | | 7 Sep 2026 | 0 | 0 | 0 | | 14 Sep 2026 | 0 | 0 | 0 | | 21 Sep 2026 | 0 | 0 | 0 | | 28 Sep 2026 | 0 | 0 | 0 | | 5 Oct 2026 | 0 | 0 | 0 | | 12 Oct 2026 | 0 | 0 | 0 | | 19 Oct 2026 | 1 | 1 | 1 | | 26 Oct 2026 | 0 | 0 | 0 | | 2 Nov 2026 | 0 | 0 | 0 | | 9 Nov 2026 | 0 | 0 | 0 | ## Other Google technologies - [Google Chrome](https://junglewise.ai/threats/technologies/chrome): 3,930 vulnerabilities - [Google Android](https://junglewise.ai/threats/technologies/android): 628 vulnerabilities - [Google Chrome for iOS](https://junglewise.ai/threats/technologies/chrome-for-ios): 79 vulnerabilities - [Google Pixel](https://junglewise.ai/threats/technologies/google-pixel): 72 vulnerabilities - [Google Cloud Platform](https://junglewise.ai/threats/technologies/google-cloud-platform): 43 vulnerabilities - [Google Chromium V8](https://junglewise.ai/threats/technologies/chromium-v8): 41 vulnerabilities - [Google Chromium](https://junglewise.ai/threats/technologies/chromium): 37 vulnerabilities - [Google TensorFlow](https://junglewise.ai/threats/technologies/tensorflow): 31 vulnerabilities - [Google Pixel Devices](https://junglewise.ai/threats/technologies/pixel-devices): 27 vulnerabilities - [Google Pixel Firmware](https://junglewise.ai/threats/technologies/pixel-firmware): 27 vulnerabilities - [Google Android Framework](https://junglewise.ai/threats/technologies/android-framework): 22 vulnerabilities - [Google Chrome for Android](https://junglewise.ai/threats/technologies/chrome-for-android): 21 vulnerabilities ## Sources NVD, GitHub Security Advisories, OSV, the CISA Known Exploited Vulnerabilities catalog, FIRST EPSS and vendor advisories. Rebuilt every hour. Cite as: Junglewise Threat Intelligence, "Google Brotli vulnerabilities", https://junglewise.ai/threats/technologies/brotli, 12 November 2026.