CVE-2026-43644

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.

CVSS v3 5.4 MEDIUM

5.4^/10

CVSS v3 : MEDIUM

Vector :

Exploitability : 2.8 / Impact : 2.5

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required NONE

User Interaction REQUIRED

Confidentiality Impact LOW

Integrity Impact LOW

Availability Impact NONE

Scope UNCHANGED

References

Link	Resource
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

Configurations

Configuration 1 (hide)

cpe:2.3:a:stefanprodan:podinfo:*:*:*:*:*:kubernetes:*:*

History

No history.

Information

Published : 2026-05-14 13:16

Updated : 2026-07-14 21:16

NVD link : CVE-2026-43644

Mitre link : CVE-2026-43644

CVE.ORG link : CVE-2026-43644

JSON object : View

Products Affected

stefanprodan

podinfo

CWE

CWE-79

Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')

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