CVE-2026-43644

MEDIUM 5.4

podinfo 6.11.2 Reflected XSS via /echo Endpoint

CVSS Score

5.4

EPSS Score

0.0%

EPSS Percentile

0th

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.

CWE	CWE-79
Vendor	stefanprodan
Product	podinfo
Published	May 14, 2026
Last Updated	May 14, 2026

Stay Ahead of the Next One

Get instant alerts for stefanprodan podinfo

Be the first to know when new medium vulnerabilities affecting stefanprodan podinfo are published — delivered to Slack, Telegram or Discord.

Get Free Alerts → Free · No credit card · 60 sec setup

CVSS v3 Breakdown

CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:N

Attack Vector

Network

Attack Complexity

Low

Privileges Required

None

User Interaction

Required

Scope

Unchanged

Confidentiality

Low

Integrity

Low

Availability

None

Affected Versions

stefanprodan / podinfo

0 ≤ 6.11.2

References

NVD ↗ CVE.org ↗ EPSS Data ↗

github.com: https://github.com/Niccolo10/Security-Advisories/blob/main/CVE-2026-43644/cve-2026-43644.md github.com: https://github.com/stefanprodan/podinfo/issues/474 vulncheck.com: https://www.vulncheck.com/advisories/podinfo-reflected-xss-via-echo-endpoint

Credits

Niccolo Parlanti