What’s Vulnerable › Vulnerabilities

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

• Severity: medium (CVSS 6.1 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.2% probability of exploitation in the next 30 days
• Public exploit or detection template: yes
• Published: 2026-05-14 · updated 2026-10-26
• Weakness: CWE-79

Description

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.

Affected products

• stefanprodan podinfo: through 6.11.12

References

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

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