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CVE-2026-43644

25
FAUCET Score

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.

First published: May 14, 2026Last modified: Jul 14, 2026

Impacted Technologies

VendorProductVersion(s)CPE
<= 6.11.12CPE matchmatch criteria
cpe:2.3:a:stefanprodan:podinfo:*:*:*:*:*:kubernetes:*:*
>= 0, <= 6.11.2CPE match
cpe:2.3:a:stefanprodan:podinfo:*:*:*:*:*:kubernetes:*:*

CVSS Data

CVSS version used by this source: 4.0

5.1MEDIUM

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/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X

Attack Vector
NETWORK
Attack Complexity
LOW
Attack Requirements
NONE
Privileges Required
NONE
User Interaction
ACTIVE
VS Confidentiality
NONE
VS Integrity
NONE
VS Availability
NONE
SS Confidentiality
LOW
SS Integrity
LOW
SS Availability
NONE
Exploit Maturity
NOT_DEFINED
CvssVersion
4.0

Exploit Intelligence

EPSS Score
0.19%
Probability of exploitation in next 30 days
EPSS Percentile
9.5%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0019 is in the 9th percentile among its peer group of 26,220 CVEs.

Social Chatter

No social media mentions found for this CVE.

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.1 Bluesky, 0.0 Mastodon, and 0.1 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.1 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Patch Available

Vendor Patches (2)

gopatch availablevia ghsa
Product: github.com/stefanprodan/podinfoFixed in: 1.8.1-0.20260519111337-cbebb20fd485
github_advisoryworkaround availablevia nvd_reference
View patch

Vendor Advisories (1)

goGHSA-q23m-vm9r-5745medium

podinfo: cross-site scripting vulnerability in the /echo and /api/echo endpoints

May 14, 2026

References

github.com / Niccolo10/Security-Advisories/blob/main/CVE-2026-43644/cve-2026-43644.md
ExploitMitigationThird Party Advisory
github.com / stefanprodan/podinfo/issues/474
Issue Tracking
vulncheck.com / advisories/podinfo-reflected-xss-via-echo-endpoint
Third Party Advisory