CVE-2026-26310 - Vulnerability Details - OpenCVE

Envoy is a high-performance edge/middle/service proxy. Prior to 1.37.1, 1.36.5, 1.35.8, and 1.34.13, calling Utility::getAddressWithPort with a scoped IPv6 addresses causes a crash. This utility is called in the data plane from the original_src filter and the dns filter. This vulnerability is fixed in 1.37.1, 1.36.5, 1.35.8, and 1.34.13.

No CVSS v4.0

Attack Vector Network

Attack Complexity High

Privileges Required None

Scope Unchanged

Confidentiality Impact None

Integrity Impact None

Availability Impact High

User Interaction None

No CVSS v3.0

No CVSS v2

This CVE is not in the KEV list.

No EPSS score available.

Exploitation none

Automatable no

Technical Impact partial

No data.

No data.

No data.

No data.

Advisories

Source	ID	Title
Github GHSA	GHSA-3cw6-2j68-868p	Envoy vulenrable to crash for scoped ip address during DNS

Fixes

Solution

No solution given by the vendor.

Workaround

No workaround given by the vendor.

References

Link	Providers
https://github.com/envoyproxy/envoy/security/advisories/GHSA-3cw6-2j68-868p

History

Tue, 10 Mar 2026 21:15:00 +0000

Type	Values Removed	Values Added
Metrics		ssvc `{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}`

Tue, 10 Mar 2026 19:30:00 +0000

Type	Values Removed	Values Added
Description		Envoy is a high-performance edge/middle/service proxy. Prior to 1.37.1, 1.36.5, 1.35.8, and 1.34.13, calling Utility::getAddressWithPort with a scoped IPv6 addresses causes a crash. This utility is called in the data plane from the original_src filter and the dns filter. This vulnerability is fixed in 1.37.1, 1.36.5, 1.35.8, and 1.34.13.
Title		Crash for scoped ip address in Envoy during DNS
Weaknesses		CWE-20
References		https://github.com/envoyproxy/envoy/security/advisories/GHSA-3cw6-2j68-868p
Metrics		cvssV3_1 `{'score': 5.9, 'vector': 'CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H'}`

Projects

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MITRE

Status: PUBLISHED

Assigner: GitHub_M

Published: 2026-03-10T19:08:22.330Z

Updated: 2026-03-10T20:12:40.343Z

Reserved: 2026-02-13T16:27:51.805Z

Link: CVE-2026-26310

Vulnrichment

Updated: 2026-03-10T20:11:54.571Z

NVD

Status : Received

Published: 2026-03-10T20:16:36.030

Modified: 2026-03-10T20:16:36.030

Link: CVE-2026-26310

Redhat

No data.

OpenCVE Enrichment

No data.

Weaknesses

CWE-20

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