TI-2026-31746 Aliases CVE-2026-43644 GHSA-q23m-vm9r-5745

podinfo 6.11.2 Reflected XSS via /echo Endpoint

MEDIUM 56CWE-79Published 2026-05-14 · Updated 2026-10-08

Key facts

Attack vector: Network
Privileges required: None
User interaction: Active
Attack complexity: Low
Attack requirements: None
Impact type: Cross-site scripting
Confidentiality · integrity · availability: None · None · None
Fix status: Fixed

Attack profile from CVSS 4.0 · CNA. Fix status from CNA and GitHub. Impact type from CWE-79.

Summary

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.

Why it matters now

Exploitation Proof of concept CISA SSVC · not in CISA KEV

EPSS 0.00195 9th percentileScored 2026-11-07

Public exploit Yes 1 exploit referenceTagged by the CNA and NVD

Fix Fixed github.com/stefanprodan/podinfo (Go): 1.8.1-0.20260519111337-cbebb20fd485

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation: Poc
Automatable: No
Technical impact: Partial

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

Vendor	Product	Affected versions	Fixed in	Status	Source
stefanprodan	podinfo	up to 6.11.2	—	No fix listed	CNA
—	github.com/stefanprodan/podinfo (Go)	before 1.8.1-0.20260519111337-cbebb20fd485	1.8.1-0.20260519111337-cbebb20fd485	Patch available	GHSA-q23m-vm9r-5745

podinfo Vendorstefanprodan Affected up to 6.11.2 Fixed in — No fix listed CNA
github.com/stefanprodan/podinfo (Go) Vendor— Affected before 1.8.1-0.20260519111337-cbebb20fd485 Fixed in 1.8.1-0.20260519111337-cbebb20fd485 Patch available GHSA-q23m-vm9r-5745

CPE configurations NVD · 1

CPE	Versions	Role	Vendor
cpe:2.3:a:stefanprodan:podinfo::::::kubernetes::*	up to 6.11.12	Vulnerable	stefanprodan

cpe:2.3:a:stefanprodan:podinfo:*:*:*:*:*:kubernetes:*:* Versions up to 6.11.12 Vulnerable ·stefanprodan

Remediation

Fix · GHSA-q23m-vm9r-5745 github.com/stefanprodan/podinfo (Go) Fixed in 1.8.1-0.20260519111337-cbebb20fd485 Advisory →

Timeline

2026-10-02 Threatist record created from CVE-2026-43644
2026-10-03 Alias added: GHSA-q23m-vm9r-5745

References

Exploit 1

https://github.com/Niccolo10/Security-Advisories/blob/main/CVE-2026-43644/cve-2026-43644.md

Advisory 1

https://nvd.nist.gov/vuln/detail/CVE-2026-43644

Other 5

TI-2025-43152 Arbitrary File Upload in podinfo thru 6.9.0 allows unauthenticated attackers to upload… CVSS 3.1MEDIUM 6.1

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences