How severe is CVE-2026-41413?

CVE-2026-41413 has a CVSS 3.x base score of 5.0, rated medium severity. It is exploitable over network with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is low, integrity none, and availability none.

Is CVE-2026-41413 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (25th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2026-41413?

CVE-2026-41413 affects Istio. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2026-41413?

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

Does CVE-2026-41413 have an EU (EUVD) identifier?

Yes. CVE-2026-41413 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-28315.

When was CVE-2026-41413 published?

CVE-2026-41413 was published on 2026-05-07 and last updated on 2026-06-17.

CVE-2026-41413

CVE-2026-41413 is a medium-severity vulnerability in Istio with a CVSS 3.x base score of 5.0. 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-918.

Key facts

Severity: Medium (CVSS 3.x base score 5.0)
EPSS exploit prediction: 0% (25th percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2026-28315
Weakness: CWE-918
Affected product: Istio
Published: 2026-05-07
Last modified: 2026-06-17

Description

Istio is an open platform to connect, manage, and secure microservices. Prior to versions 1.28.6 and 1.29.2, when a RequestAuthentication resource is created with a jwksUri pointing to an internal service, istiod makes an unauthenticated HTTP GET request to that URL without filtering out localhost or link local ips. This can result in sensitive data being distributed to Envoy proxies via xDS configuration. This issue has been patched in versions 1.28.6 and 1.29.2.

Frequently asked questions

What is CVE-2026-41413?: Istio is an open platform to connect, manage, and secure microservices. Prior to versions 1.28.6 and 1.29.2, when a RequestAuthentication resource is created with a jwksUri pointing to an internal service, istiod makes an unauthenticated HTTP GET request to that URL without filtering out localhost or link local ips. This can result in sensitive data being distributed to Envoy proxies via xDS configuration. This issue has been patched in versions 1.28.6 and 1.29.2.
How severe is CVE-2026-41413?: CVE-2026-41413 has a CVSS 3.x base score of 5.0, rated medium severity. It is exploitable over network with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is low, integrity none, and availability none.
Is CVE-2026-41413 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (25th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2026-41413?: CVE-2026-41413 affects Istio. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2026-41413?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
Does CVE-2026-41413 have an EU (EUVD) identifier?: Yes. CVE-2026-41413 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-28315.
When was CVE-2026-41413 published?: CVE-2026-41413 was published on 2026-05-07 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:a:istio:istio:*:*:*:*:*:*:*:*

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