CVE-2026-49855

Katalog CVE

CVSS 7.5 · High EPSS 0,61%

Kerentanan Improper Handling of Highly Compressed Data (Data Amplification). Skor CVSS 3.1 7.5 (High) menurut github.com.

Deskripsi (NVD)

Tornado is a Python web framework and asynchronous networking library. Prior to 6.5.6, Tornado gzip decompression routines processed limited-size chunks but did not enforce an overall limit on accumulated decompressed chunks, allowing a malicious server accessed by SimpleAsyncHTTPClient or an HTTPServer configured with decompress_request=True to consume effectively unlimited memory. This issue is fixed in version 6.5.6.

Rincian

Terbit di NVD

14 Juli 2026

Terakhir diubah

16 Juli 2026

Status NVD

Deferred

CVSS 3.1

7.5 (High), sumber github.com
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H · uraikan di kalkulator

Jenis kelemahan (CWE)

CWE-409: Improper Handling of Highly Compressed Data (Data Amplification)

EPSS (30 hari)

0,61% peluang dieksploitasi; lebih tinggi dari 47,7% CVE lain

Produk dan versi terdampak

NVD belum mencantumkan data produk (CPE) untuk CVE ini. Produk yang terdampak biasanya disebut di deskripsi dan di advisory vendor pada daftar referensi.

Referensi dan perbaikan

• https://github.com/tornadoweb/tornado/commit/ff808b33adc52d89a549376a5e3628e92abbc8ff
• https://github.com/tornadoweb/tornado/pull/3626
• https://github.com/tornadoweb/tornado/security/advisories/GHSA-mgf9-4vpg-hj56