CVE-2026-43644
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.
Predictions
Heuristic predictions, AS-IS, for prioritization only.
Mitigations
No mitigations published for this CVE yet.
The vendor-content worker queues fetches as references arrive (check back in a few minutes). Or — if you've already worked around this in production — publish your fix to the community-verified tier.
✚ Propose a mitigation on Community → Mitigations published via the community go through AI scoring + 2 human reviewers + 7-day silent objection window before landing here withsource_tier=community-verified.
Package impact
| Ecosystem | Package | Vulnerable | Fixed |
|---|---|---|---|
| Go | github.com/stefanprodan/podinfo | <1.8.1-0.20260519111337-cbebb20fd485 | 1.8.1-0.20260519111337-cbebb20fd485 |
| GO | github.com/stefanprodan/podinfo | < 1.8.1-0.20260519111337-cbebb20fd485 | 1.8.1-0.20260519111337-cbebb20fd485 |
Application impact
| Vendor | Product | Versions | Fixed |
|---|---|---|---|
| stefanprodan | podinfo | {"endIncluding":"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
- https://nvd.nist.gov/vuln/detail/CVE-2026-43644
- https://github.com/stefanprodan/podinfo/pull/480
- https://github.com/stefanprodan/podinfo/commit/cbebb20fd48588d36fc7ff3e874c128eb89692f4
- https://github.com/stefanprodan/podinfo
- https://github.com/stefanprodan/podinfo/releases/tag/6.12.0
- https://github.com/advisories/GHSA-q23m-vm9r-5745
CWEs
CWE-79
Community-verified mitigations for this CVE will appear above when contributors publish them.
Verify integrity in audit chain (admin only). AS-IS.