SCA: security update for github.com/getarcaneapp/arcane/backend (GHSA-q2pj-8v84-9mh5)

high Tenable Cloud Security Plugin ID 442065

Description

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

- Arcane is an interface for managing Docker containers, images, networks, and volumes. Prior to 1.19.0, the
unauthenticated GET /api/app-images/logo endpoint reflects a user-supplied color query parameter into the
body of an SVG document via strings.ReplaceAll with no escaping. The substitution lands inside a <style>
element of the embedded logo.svg, allowing an attacker to close the style block and inject executable
<script> content. Because the response is served as image/svg+xml and Arcane sets no Content-Security-
Policy or X-Content-Type-Options headers, navigating a logged-in admin victim to a crafted URL executes
attacker-controlled JavaScript in Arcane's origin and rides the victim's HttpOnly JWT cookie to fully
compromise the admin account. This vulnerability is fixed in 1.19.0. (CVE-2026-45627)

Solution

Update the github.com/getarcaneapp/arcane/backend library and its related packages to version 1.19.0 or later.

See Also

https://github.com/advisories/GHSA-q2pj-8v84-9mh5

Plugin Details

Severity: High

ID: 442065

Version: Revision 1.5

Type: Local

Family: SCA Checks

Published: 5/18/2026

Updated: 7/2/2026

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

Risk Information

VPR

Risk Factor: Low

Score: 3.9

Percentile: 52.76

Vendor

Vendor Severity: High

CVSS v2

Risk Factor: High

Base Score: 8.5

Temporal Score: 6.3

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

CVSS Score Source: CVE-2026-45627

CVSS v3

Risk Factor: High

Base Score: 8.2

Temporal Score: 7.1

Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:C/C:H/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: 5/18/2026

Vulnerability Publication Date: 5/18/2026

Reference Information

CVE: CVE-2026-45627

cwe: CWE-79