How severe is CVE-2026-43644?

CVE-2026-43644 has a CVSS 3.x base score of 5.4, rated medium severity. It is exploitable over network with low attack complexity, requires no privileges and user interaction. Impact on confidentiality is low, integrity low, and availability none.

Is CVE-2026-43644 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (9th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2026-43644?

CVE-2026-43644 affects Stefanprodan Podinfo. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2026-43644?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.

Does CVE-2026-43644 have an EU (EUVD) identifier?

Yes. CVE-2026-43644 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-30275.

When was CVE-2026-43644 published?

CVE-2026-43644 was published on 2026-05-14 and last updated on 2026-06-17.

CVE-2026-43644

CVE-2026-43644 is a medium-severity vulnerability in Stefanprodan Podinfo with a CVSS 3.x base score of 5.4. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-79.

Key facts

Severity: Medium (CVSS 3.x base score 5.4)
CVSS v4: 5.1
EPSS exploit prediction: 0% (9th percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2026-30275
Weakness: CWE-79
Affected product: Stefanprodan Podinfo
Published: 2026-05-14
Last modified: 2026-06-17

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.

Frequently asked questions

What is CVE-2026-43644?: 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.
How severe is CVE-2026-43644?: CVE-2026-43644 has a CVSS 3.x base score of 5.4, rated medium severity. It is exploitable over network with low attack complexity, requires no privileges and user interaction. Impact on confidentiality is low, integrity low, and availability none.
Is CVE-2026-43644 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (9th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2026-43644?: CVE-2026-43644 affects Stefanprodan Podinfo. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2026-43644?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
Does CVE-2026-43644 have an EU (EUVD) identifier?: Yes. CVE-2026-43644 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-30275.
When was CVE-2026-43644 published?: CVE-2026-43644 was published on 2026-05-14 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:a:stefanprodan:podinfo:*:*:*:*:*:kubernetes:*:*

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