CVE-2026-26310
Crash for scoped ip address in Envoy during DNS
CVSS Score
5.9
EPSS Score
0.0%
EPSS Percentile
0th
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.
| CWE | CWE-20 |
| Vendor | envoyproxy |
| Product | envoy |
| Published | Mar 10, 2026 |
| Last Updated | Mar 10, 2026 |
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CVSS v3 Breakdown
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H Attack Vector
Network
Attack Complexity
High
Privileges Required
None
User Interaction
None
Scope
Unchanged
Confidentiality
None
Integrity
None
Availability
High
Affected Versions
envoyproxy / envoy
>= 1.37.0, < 1.37.1 >= 1.36.0, < 1.36.5 >= 1.35.0, < 1.35.9 < 1.34.13