Is CVE-2026-27589 actively exploited?

No active exploitation of CVE-2026-27589 has been confirmed so far. Continue monitoring, as exploit status can change.

Can CVE-2026-27589 be exploited remotely?

Yes. CVE-2026-27589 is exploitable remotely over the network (CVSS attack vector: Network).

What is the CVSS score of CVE-2026-27589?

CVE-2026-27589 has a CVSS score of 6.5 (MEDIUM) and an EPSS exploitation probability of 0.02%.

HOME VULNERABILITIESCVE-2026-27589

MEDIUM

CVE-2026-27589

CWE-352Published: February 24, 2026· Updated: Feb 25, 2026

6.5

CVSS v3.1

EPSS:0.02%probability of exploitation in 30 daysPercentile:4.0th

Official Description

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.

NVD Source

Technical Analysis

CVE-2026-27589 can be exploited remotely over the network without requiring physical or adjacent access, significantly expanding the attack surface for threat actors.

Exploitation does not require any privileges, though user interaction (Required) is needed, which slightly reduces the risk of mass automated attacks.

A successful exploit results in full integrity compromise (data manipulation), with a CVSS base score of 6.5.