PT-2026-24379 · Envoy · Envoy

Antoniovleonti · Published 2026-03-10 · Updated 2026-03-12 · CVE-2026-26310

Positive Technologies (AI Summary)

CVSS v3.1

7.5

High

Base vector

AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Name of the Vulnerable Software and Affected Versions Envoy versions prior to 1.37.1 Envoy versions prior to 1.36.5 Envoy versions prior to 1.35.8 Envoy versions prior to 1.34.13

Description Envoy is a high-performance edge/middle/service proxy. Calling the Utility::getAddressWithPort function with a scoped IPv6 address can cause a crash. This function is used in the data plane by the original src filter and the dns filter, potentially leading to a denial of service.

Recommendations Update to Envoy version 1.37.1. Update to Envoy version 1.36.5. Update to Envoy version 1.35.8. Update to Envoy version 1.34.13.

Exploit

Fix

DoS

RCE

Weakness Enumeration

CWE-20

Related Identifiers

BIT-ENVOY-2026-26310

CVE-2026-26310

GHSA-3CW6-2J68-868P

Affected Products

Envoy

References · 10

• 🔥 https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/26xxx/CVE-2026-26310.json · Exploit
• https://github.com/envoyproxy/envoy/security/advisories/GHSA-3cw6-2j68-868p · Vendor Advisory
• https://osv.dev/vulnerability/CVE-2026-26310 · Vendor Advisory
• https://osv.dev/vulnerability/GHSA-3cw6-2j68-868p · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2026-26310 · Security Note
• https://osv.dev/vulnerability/BIT-envoy-2026-26310 · Vendor Advisory
• https://github.com/envoyproxy/envoy · Note
• https://twitter.com/CVEnew/status/2031504148802175433 · Twitter Post
• https://twitter.com/infoflowcloud/status/2031505759750467623 · Twitter Post
• https://twitter.com/VolerionSec/status/2031469655055905037 · Twitter Post