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.
Fix
Patch, vendor advisory and mitigation references on NVD 1
- https://github.com/Niccolo10/Security-Advisories/blob/main/CVE-2026-43644/cve-2026-43644.md Exploit, Mitigation, Third Party Advisory
Every line above is quoted from NVD, CISA, Microsoft, the vendor's own advisory or DISA; nothing is generated.
Change history 1
- First seenCVSS 5.1 · stefanprodanNVD modified 2026-10-08 16:17
Affected (CPE criteria) 1
cpe:2.3:a:stefanprodan:podinfo:*:*:*:*:*:kubernetes:*:*
References 3
- https://github.com/Niccolo10/Security-Advisories/blob/main/CVE-2026-43644/cve-2026-43644.md Exploit, Mitigation, Third Party Advisory
- https://github.com/stefanprodan/podinfo/issues/474 Issue Tracking
- https://www.vulncheck.com/advisories/podinfo-reflected-xss-via-echo-endpoint Third Party Advisory