Detections
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SCA: security update for tornado (GHSA-cx3h-4qpv-8hc9)

medium Tenable Cloud Security Plugin ID 443118

Description

There are packages installed that are affected by a vulnerability referenced in the following CVE:

 - Tornado is a Python web framework and asynchronous networking library. Prior to 6.5.6, the optional native
 extension tornado.speedups implemented websocket_mask without validating that the mask argument is exactly
 four bytes, allowing the C function to read up to three bytes beyond the provided buffer when reached
 through Tornado XSRF token decoding with the native extension active. This issue is fixed in version
 6.5.6. (CVE-2026-49854)

Solution

Update the tornado library and its related packages to version 6.5.6 or later.

See Also

https://github.com/advisories/GHSA-cx3h-4qpv-8hc9

Plugin Details

Severity: Medium

ID: 443118

Version: Revision 1.4

Type: Local

Family: SCA Checks

Published: 6/12/2026

Updated: 7/15/2026

Supported Sensors: Tenable Cloud Security, Tenable Self-Hosted Container Security

Risk Information

VPR

Risk Factor: Low

Score: 1.2

Percentile: 0.01

Vendor

Vendor Severity: Low

CVSS v2

Risk Factor: Low

Base Score: 2.6

Temporal Score: 1.9

Vector: CVSS2#AV:N/AC:H/Au:N/C:P/I:N/A:N

CVSS Score Source: CVE-2026-49854

CVSS v3

Risk Factor: Medium

Base Score: 5.3

Temporal Score: 4.6

Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N

Temporal Vector: CVSS:3.0/E:U/RL:O/RC:C

Vulnerability Information

Exploit Ease: No known exploits are available

Patch Publication Date: 6/12/2026

Vulnerability Publication Date: 6/12/2026

Reference Information

CVE: CVE-2026-49854

cwe: CWE-126