CVE-2026-43644: podinfo through 6.11.2 contains a reflected cross-site scripting vulnerability in the /echo and /api/echo endp

Q: How do I fix CVE-2026-43644?

podinfo: upgrade to newer than 6.11.12. Exact commands for each OS are on this page.

Q: Is CVE-2026-43644 being exploited?

CVE-2026-43644 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

Q: What does CVE-2026-43644 affect?

CVE-2026-43644 affects podinfo. Severity is medium (CVSS 5.4). 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-Conten

Q: How urgent is CVE-2026-43644?

Priority 26/100. Public exploit reference

Routine

MEDIUM 5.4UPGRADE

CVE-2026-43644 is a medium-severity flaw (CVSS 5.4) affecting podinfo. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

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, a

Why this priority

Public exploit reference

A fixed release or distro patch exists.

Risk facts

CVSS score	5.4 (Medium)
Attack vector	Network (remote)
Attack complexity	Low
Privileges needed	None
User interaction	Required
EPSS exploit chance	0.2% (top 91%)
CISA exploited list	No
Weakness	CWE-79
Published	2026-05-14
Last modified	2026-10-26

Publisher (CNA): VulnCheck · Vendor: stefanprodan

Last updated 2026-10-26 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score

Am I affected?

Timeline

2026-05-14 13:16 UTCPublished CVE record published
2026-10-26 14:10 UTCUpdated Record last modified

stefanprodan podinfo UPGRADE

Affected: <= 6.11.12

Fixed in: newer than 6.11.12

Safe to downgrade to: no unaffected older release

1. Check installed version

apt-cache policy podinfo || rpm -q podinfo || podinfo --version

2. UPGRADE to newer than 6.11.12 (Debian / Ubuntu)

sudo apt update && sudo apt install --only-upgrade podinfo

2. UPGRADE (RHEL / Amazon Linux / Fedora)

sudo dnf upgrade podinfo

Note

Distros often backport fixes without changing the version number. Confirm with the distro advisory or changelog.

Verify at the official source NVD · CVE Program · Report a problem with this page
Scores and fixes here are computed automatically from those and other public sources. Confirm with the vendor advisory before changing production systems.

Quick answers

How do I fix CVE-2026-43644?

podinfo: upgrade to newer than 6.11.12. Exact commands for each OS are on this page.

Is CVE-2026-43644 being exploited?

CVE-2026-43644 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

What does CVE-2026-43644 affect?

CVE-2026-43644 affects podinfo. Severity is medium (CVSS 5.4). 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-Conten

How urgent is CVE-2026-43644?

Priority 26/100. Public exploit reference

References

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