What is CVE-2026-48497?

CVE-2026-48497 is a medium-severity vulnerability in Envoyproxy Envoy, classified under CWE-480. CVSS score: 5.9/10. Published 2026-06-26.

How severe is CVE-2026-48497?

Medium severity. CVSS v3 base score is 5.9 out of 10.

Vulnerability in Envoyproxy Envoy

CVE-2026-48497

Envoy is an open source edge and service proxy designed for cloud-native applications. Prior to 1.35.11, 1.36.7, 1.37.3, and 1.38.1, in cases where UDP DNS filter is configured with local resolution containing a name with the length of 255…

CVSS v3 metric

CVSS v3 base score 5.9 (Medium). Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H.

Affected products

Envoyproxy Envoy — versions >= 1.38.0, < 1.38.1, >= 1.37.0, < 1.37.3, >= 1.36.0, < 1.36.7

Weakness classification (CWE)

CWE-480

References

security-advisories@github.com (x_refsource_CONFIRM)

Frequently asked questions

What is CVE-2026-48497?: CVE-2026-48497 is a medium-severity vulnerability in Envoyproxy Envoy, classified under CWE-480. CVSS score: 5.9/10. Published 2026-06-26.
How severe is CVE-2026-48497?: Medium severity. CVSS v3 base score is 5.9 out of 10.