Detections
Analytics
SCA: security update for ep_etherpad-lite (GHSA-fjgc-3mj7-8rg8)
medium Tenable Cloud Security Plugin ID 445956
Description
There are packages installed that are affected by a vulnerability referenced in the following CVE:- Etherpad is a real-time collaborative editor. From 2.1.0 until 3.1.0, Etherpad uses the attacker-
controlled x-proxy-path request header in src/node/hooks/express/admin.ts when substituting paths into
HTML, JavaScript, and CSS under /admin without sanitization, Vary: x-proxy-path, or Cache-Control:
private, no-store. A shared proxy or CDN can cache the resulting response and serve attacker-injected
script to an administrator. In src/node/hooks/express/specialpages.ts, version 3.0.0 also accepts a
protocol-relative x-proxy-path value when constructing the /p/:pad/timeslider redirect, allowing
redirection to an attacker-controlled host. The issues are exploitable when the deployment permits client-
supplied x-proxy-path headers to reach Etherpad. This issue is fixed in version 3.1.0. (CVE-2026-55087)
Solution
Update the ep_etherpad-lite library and its related packages to version 3.1.0 or later.See Also
Plugin Details
Severity: Medium
ID: 445956
Version: Revision 1.3
Type: Local
Family: SCA Checks
Published: 8/13/2026
Updated: 8/20/2026
Supported Sensors: Tenable Cloud Security, Tenable Self-Hosted Container Security
Risk Information
VPR
Risk Factor: Low
Score: 2.3
Percentile: 9.74
Vendor
Vendor Severity: Medium
CVSS v2
Risk Factor: Medium
Base Score: 6.4
Temporal Score: 4.7
Vector: CVSS2#AV:N/AC:L/Au:N/C:P/I:P/A:N
CVSS Score Source: CVE-2026-55087
CVSS v3
Risk Factor: Medium
Base Score: 6.1
Temporal Score: 5.3
Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/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: 8/13/2026
Vulnerability Publication Date: 8/13/2026
Reference Information
CVE: CVE-2026-55087