Chainguard: multiple open-webui packages: security update to 0.11.4-r3

high Tenable Self-Hosted Container Security Plugin ID 471231

Description

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

- pypdf is a free and open-source pure-python PDF library. Prior to 6.18.1, a crafted PDF containing a
partially malformed /FlateDecode stream with padded data can force pypdf/filters.py to use inefficient
byte-by-byte decompression while the earlier recovery counter fails to advance for bytes that successfully
decode, causing long runtimes and application unavailability. This is a residual issue after the malformed
FlateDecode recovery fix. This issue is fixed in version 6.18.1. (CVE-2026-102997)

Solution

Update the open-webui library and its related packages to version 0.11.4-r3 or later.

Plugin Details

Severity: High

ID: 471231

Version: Revision 1.1

Type: Local

Published: 10/3/2026

Updated: 10/3/2026

Risk Information

VPR

Risk Factor: Low

Score: 3

Percentile: 23.63

CVSS v2

Risk Factor: Medium

Base Score: 4.3

Temporal Score: 3.2

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

CVSS Score Source: CVE-2026-102997

CVSS v3

Risk Factor: Medium

Base Score: 6.5

Temporal Score: 5.7

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

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

CVSS v4

Risk Factor: High

Base Score: 8.7

Threat Score: 6.6

Threat Vector: CVSS:4.0/E:U

Vector: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N

Vulnerability Information

Exploit Ease: No known exploits are available

Vulnerability Publication Date: 9/30/2026

Reference Information

CVE: CVE-2026-102997