CVE-2026-43644 MEDIUM

CVE-2026-43644: podinfo 6.11.2 Reflected XSS via /echo Endpoint

Vendor Stefanprodan
Product podinfo
Weakness CWE-79 · XSS
Published May 14, 2026
Last update May 14, 2026

CVSS base score

5.1/10
Attack vector Network
Attack complexity Low
Privileges required None
User interaction
Confidentiality
Integrity

CVSS vector

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

What the vulnerability does

01Description

podinfo through 6.11.2 contains a reflected cross-site scripting vulnerability in the /echo and /api/echo endpoints where the echoHandler writes request body content directly to the response without setting explicit Content-Type or X-Content-Type-Options headers. Attackers can craft cross-origin HTML pages with auto-submitting forms containing script payloads in the request body, which are served as text/html due to Go's content type detection, allowing the reflected script to execute in the podinfo origin context when victims visit the attacker's page.

Key dates

02Disclosure timeline

May 14, 2026 CVE published
May 14, 2026 Record updated