SCA: security update for github.com/caddyserver/caddy/v2 (GHSA-879p-475x-rqh2)

high Tenable Self-Hosted Container Security Plugin ID 438004

Description

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

- Caddy is an extensible server platform that uses TLS by default. Prior to version 2.11.1, the local caddy
admin API (default listen `127.0.0.1:2019`) exposes a state-changing `POST /load` endpoint that replaces
the entire running configuration. When origin enforcement is not enabled (`enforce_origin` not
configured), the admin endpoint accepts cross-origin requests (e.g., from attacker-controlled web content
in a victim browser) and applies an attacker-supplied JSON config. This can change the admin listener
settings and alter HTTP server behavior without user intent. Version 2.11.1 contains a fix for the issue.
(CVE-2026-27589)

See Also

https://github.com/advisories/GHSA-879p-475x-rqh2

Plugin Details

Severity: High

ID: 438004

Version: Revision 1.6

Type: Local

Family: SCA Checks

Published: 2/27/2026

Updated: 7/2/2026

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

Risk Information

VPR

Risk Factor: Low

Score: 3

Percentile: 23.73

Vendor

Vendor Severity: Medium

CVSS v2

Risk Factor: High

Base Score: 7.8

Temporal Score: 6.1

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

CVSS Score Source: CVE-2026-27589

CVSS v3

Risk Factor: Medium

Base Score: 6.5

Temporal Score: 5.9

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

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

CVSS v4

Risk Factor: High

Base Score: 8.2

Threat Score: 6.9

Threat Vector: CVSS:4.0/E:P

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

Vulnerability Information

Exploit Available: true

Exploit Ease: Exploits are available

Patch Publication Date: 2/24/2026

Vulnerability Publication Date: 2/24/2026

Reference Information

CVE: CVE-2026-27589

cwe: CWE-352