CVE-2026-97688

Что произошло

urllib3 is an HTTP client library for Python. From 2.6.2 until 2.8.0, HTTPResponse.stream and HTTPResponse.read_chunked can enter an infinite loop because the Deflate decoder retains trailing bytes as unconsumed input after reaching end-of-stream and repeatedly decodes them without progress. The issue occurs when an untrusted server sends a chunked Deflate response whose decoded body exceeds a positive finite chunk size and whose encoded body has trailing bytes, specifically a response with Transfer-Encoding: chunked and Content-Encoding: deflate, content decoding enabled, and the positive finite amt=N streaming chunk size. The attack mechanism is that a malicious server returns a compressed chunked response with trailing bytes after the Deflate stream. The impact is excessive CPU usage and a request that does not complete, and network read timeouts do not interrupt the loop because no further socket read occurs. This issue is fixed in version 2.8.0.

Что делать

dpkg-query -W -f='${Package}	${Version}\n'

rpm -qa --qf '%{NAME}\t%{VERSION}-%{RELEASE}\n'

Get-HotFix | Select-Object HotFixID, InstalledOn

Продукты и затронутые версии

{
  "status": "affected",
  "version": ">= 2.6.2, < 2.8.0"
}

{
  "status": "affected",
  "version": "*",
  "versionEndExcluding": "2.8.0",
  "versionStartIncluding": "2.6.2"
}

CVSS: оценки и векторы

CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N

Источники и ссылки

{
  "cwes": [
    "cve"
  ],
  "epss": {
    "source": "epss",
    "received_at": "2026-11-04T21:21:26.534615+00:00"
  },
  "title": {
    "source": "cve",
    "received_at": "2026-10-28T21:30:02.133813+00:00"
  },
  "scores": [
    "cve"
  ],
  "status": {
    "source": "cve",
    "received_at": "2026-10-28T21:30:02.133813+00:00"
  },
  "affected": [
    "cve",
    "osv"
  ],
  "published": {
    "source": "cve",
    "received_at": "2026-10-28T21:30:02.133813+00:00"
  },
  "solutions": [],
  "percentile": {
    "source": "epss",
    "received_at": "2026-11-04T21:21:26.534615+00:00"
  },
  "references": [
    "cve",
    "osv"
  ],
  "description": {
    "source": "cve",
    "received_at": "2026-10-28T21:30:02.133813+00:00"
  },
  "workarounds": [],
  "configurations": []
}

Хронология записи

1. Данные обновлены05.11.2026, 00:21
2. Данные обновлены04.11.2026, 00:16
3. Данные обновлены03.11.2026, 00:15
4. Данные обновлены02.11.2026, 15:12
5. Данные обновлены02.11.2026, 13:40
6. Данные обновлены02.11.2026, 00:13
7. Данные обновлены31.10.2026, 12:00
8. Данные обновлены29.10.2026, 12:46
9. Опубликована29.10.2026, 00:30

Личная заметка и статус

Другие CVE того же продукта