SCA: security update for ep_etherpad-lite (GHSA-2jp7-wwpg-3p9w)

medium Tenable Self-Hosted Container Security Plugin ID 446001

Description

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

- Etherpad is a real-time collaborative editor. Prior to 3.3.0, getHTMLFromAtext in
src/node/utils/ExportHtml.ts interpolates values from the exportHtmlAdditionalTagsWithData plugin hook
into span data attributes without HTML attribute escaping. A pad editor can place an attacker-controlled
value into the attribute pool through moveOpsToNewPool and AttributePool.putAttrib. When a bundled plugin
such as ep_font_color or ep_font_size registers the hook, opening the resulting HTML export causes the
value to execute as stored cross-site scripting in the Etherpad origin. This issue is fixed in version
3.3.0. (CVE-2026-55090)

Solution

Update the ep_etherpad-lite library and its related packages to version 3.3.0 or later.

Plugin Details

Severity: Medium

ID: 446001

Version: Revision 1.3

Type: Local

Family: SCA Checks

Published: 8/17/2026

Updated: 8/20/2026

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

Risk Information

VPR

Risk Factor: Low

Score: 2.3

Percentile: 9.73

Vendor

Vendor Severity: High

CVSS v2

Risk Factor: Low

Base Score: 3.5

Temporal Score: 2.6

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

CVSS Score Source: CVE-2026-55090

CVSS v3

Risk Factor: Medium

Base Score: 5.4

Temporal Score: 4.7

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

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

CVSS v4

Risk Factor: Medium

Base Score: 5.3

Threat Score: 1.3

Threat Vector: CVSS:4.0/E:U

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

Vulnerability Information

Exploit Ease: No known exploits are available

Patch Publication Date: 8/17/2026

Vulnerability Publication Date: 8/17/2026

Reference Information

CVE: CVE-2026-55090

cwe: CWE-79

Detections

Analytics