stefanprodan/podinfo · Security
podinfo: cross-site scripting vulnerability in the /echo and /api/echo endpoints
- GHSA ID
- GHSA-q23m-vm9r-5745
- CVE ID
- CVE-2026-43644
- Severity
- medium
- Published
- Updated
- CVSS
- 5.4 · CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:N
- CVSS v3
- 5.4 · CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:N
- CVSS v4
- 5.1 · 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
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.
CWEs
- CWE-79 · Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
References
- https://nvd.nist.gov/vuln/detail/CVE-2026-43644 ↗
- https://github.com/stefanprodan/podinfo/issues/474 ↗
- https://github.com/Niccolo10/Security-Advisories/blob/main/CVE-2026-43644/cve-2026-43644.md ↗
- https://www.vulncheck.com/advisories/podinfo-reflected-xss-via-echo-endpoint ↗
- https://github.com/stefanprodan/podinfo/pull/480 ↗
- https://github.com/stefanprodan/podinfo/commit/cbebb20fd48588d36fc7ff3e874c128eb89692f4 ↗
- https://github.com/stefanprodan/podinfo/releases/tag/6.12.0 ↗
- https://github.com/advisories/GHSA-q23m-vm9r-5745 ↗