CVE-2026-49855

7.5 Élevée

Publiée le 14/07/2026 à 23:17 · Modifiée le 16/07/2026 à 18:19 · Analyse NVD reportée · Source : security-advisories@github.com

Description

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.

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Produits concernés

tornadoweb tornado

Scores CVSS

Version	Score	Source	Vecteur
3.1	7.5 Élevée	security-advisories@github.com	`CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H`

Faiblesses (CWE)

CWE-409

Références

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

Ailleurs

NVD
CVE.org
CIRCL Vulnerability-Lookup
CERT-FR
GitHub Advisories