Detections
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Alpine: webkit2gtk: security update to 2.34.1-r0

medium Tenable Self-Hosted Container Security Plugin ID 426550

Description

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

 - BubblewrapLauncher.cpp in WebKitGTK and WPE WebKit before 2.34.1 allows a limited sandbox bypass that
 allows a sandboxed process to trick host processes into thinking the sandboxed process is not confined by
 the sandbox, by abusing VFS syscalls that manipulate its filesystem namespace. The impact is limited to
 host services that create UNIX sockets that WebKit mounts inside its sandbox, and the sandboxed process
 remains otherwise confined. NOTE: this is similar to CVE-2021-41133. (CVE-2021-42762)

See Also

https://security.alpinelinux.org/vuln/CVE-2021-42762

Plugin Details

Severity: Medium

ID: 426550

Version: Revision 1.2

Type: Local

Published: 5/16/2025

Updated: 7/2/2026

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

Risk Information

VPR

Risk Factor: Medium

Score: 4.8

Percentile: 56.93

CVSS v2

Risk Factor: Medium

Base Score: 4.6

Temporal Score: 3.6

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

CVSS Score Source: CVE-2021-42762

CVSS v3

Risk Factor: Medium

Base Score: 5.3

Temporal Score: 4.8

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

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

Vulnerability Information

Exploit Available: true

Exploit Ease: Exploits are available

Vulnerability Publication Date: 10/20/2021

Reference Information

CVE: CVE-2021-42762