BIT-envoy-2026-26310

vendorUSosv

Crash for scoped ip address in Envoy during DNS

view advisory published 2026-03-12Licence: per source

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.

describes (1)

Related CVEs.

ID	severity	EPSS	exploitable	published
CVE-2026-26310US	high7.5	0.41% (35th)	—	2026-03-10
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…

references

External citations — patches, advisories, analysis.

https://github.com/envoyproxy/envoy/security/advisories/GHSA-3cw6-2j68-868pADVISORY
https://nvd.nist.gov/vuln/detail/CVE-2026-26310WEB

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