Detections
Analytics

SCA: security update for autobahn (GHSA-pjh6-c8mg-3x7m)

medium Tenable Cloud Security Plugin ID 477775

Description

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

 - Autobahn Python is a WebSocket and WAMP implementation for Python that supports Twisted and asyncio. From
 26.7.1 until 26.10.1, PerMessageBrotli.decompress_message_data in compress_brotli.py calls the Brotli
 decompressor without an output limit and checks maxMessagePayloadSize only after a complete frame has been
 inflated. An unauthenticated WebSocket client can send a small, highly compressed frame that allocates
 hundreds of MiB before rejection, causing memory-exhaustion denial of service on servers that enable the
 opt-in permessage-brotli feature through the compress extra. Deflate and bzip2 already enforce the
 remaining output budget and are outside this residual vulnerability. This issue is fixed in version
 26.10.1. (CVE-2026-116579)

Solution

Update the autobahn library and its related packages to version 26.10.1 or later.

See Also

https://github.com/advisories/GHSA-pjh6-c8mg-3x7m

Plugin Details

Severity: Medium

ID: 477775

Version: Revision 1.1

Type: Local

Family: SCA Checks

Published: 10/29/2026

Updated: 10/29/2026

Risk Information

VPR

Risk Factor: Low

Score: 3

Percentile: 23.73

Vendor

Vendor Severity: Medium

CVSS v2

Risk Factor: Medium

Base Score: 5.4

Temporal Score: 4

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

CVSS Score Source: CVE-2026-116579

CVSS v3

Risk Factor: Medium

Base Score: 5.9

Temporal Score: 5.2

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

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

Vulnerability Information

Exploit Ease: No known exploits are available

Patch Publication Date: 10/28/2026

Vulnerability Publication Date: 10/26/2026

Reference Information

CVE: CVE-2026-116579