Is github.com/envoyproxy/envoy safe ? github.com/envoyproxy/envoy (go) has 11 known vulnerabilities, the worst rated CRITICAL. No single fixed version is recorded that clears every advisory, so check each one below. No malicious-package signal is recorded.
// reach 12 direct dependencies
5 carry known advisories, worst CRITICAL
3 packages depend on it
an advisory here reaches each of them
// ai model usage Tracked for PyPI packages. HuggingFace models declare Python dependencies, so go packages are not covered.
cvss CVSS v3.0 base score out of 10
epss chance of exploitation in 30 days, 92nd percentile of all CVEs
xyz score CyberXYZ composite out of 10
fig. 01 — GHSA-2wmf-p7f8-w42h, the advisory selected below
// 11 advisories GHSA-2wmf-p7f8-w42h Envoy 1.9.0 and before does not normalize HTTP URL paths. CRIT GHSA-ghc4-35x6-crw5 The Envoy RBAC (Role-Based Access Control) filter contains a logic vulnerability in how it validates HTTP headers when multiple values are present for the same… HIGH GHSA-g9vw-6pvx-7gmw A use-after-free (UAF) vulnerability in Envoy's DNS cache causes abnormal process termination. HIGH GHSA-c23c-rp3m-vpg3 At the rate limit filter, if we enabled the response phase limit with applyonstreamdone in the rate limit configuration and the response phase limit request… MODE GHSA-3cw6-2j68-868p Calling Utility::getAddressWithPort with a scoped IPv6 addresses causes a crash. MODE GHSA-84xm-r438-86px Note: MODE GHSA-56cj-wgg3-x943 An off-by-one write in Envoy::JsonEscaper::escapeString() can corrupt MODE GHSA-rwjg-c3h2-f57p Envoy’s mTLS certificate matcher for matchtypedsubjectaltnames may incorrectly treat certificates containing an embedded null byte (\0) inside an OTHERNAME SAN… MODE GHSA-mp85-7mrq-r866 Envoy crashes when JWT authentication is configured with the remote JWKS fetching, allowmissingorfailed is enabled, multiple JWT tokens are present in the… MODE GHSA-cf3q-gqg7-3fm9 Envoy's extproc HTTP filter is at risk of crashing if a local reply is sent to the external server due to the filter's life time issue. MODE GHSA-rj35-4m94-77jh Forwarding of early CONNECT data in TCP proxy mode. LOW Envoy 1.9.0 and before does not normalize HTTP URL paths.
Full advisory text at GitHub advisory or NVD .
// cvss v3.0 vector CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H
Attack vector Network
Attack complexity Low
Privileges required None
User interaction None
Scope Changed
Confidentiality High
Integrity High
Availability High // questions Is github.com/envoyproxy/envoy safe to install? CyberXYZ does not call a package safe in absolute terms. It records 11 known vulnerabilities for github.com/envoyproxy/envoy (go), the worst rated CRITICAL, and no malicious-package signal. Whether it is acceptable depends on the version you run.
Does github.com/envoyproxy/envoy have known vulnerabilities? Yes. CyberXYZ records 11 known vulnerabilities for github.com/envoyproxy/envoy (go), the worst rated CRITICAL. These include GHSA-2wmf-p7f8-w42h, GHSA-ghc4-35x6-crw5, GHSA-g9vw-6pvx-7gmw, GHSA-c23c-rp3m-vpg3, GHSA-3cw6-2j68-868p.
How do I check github.com/envoyproxy/envoy before installing? Search github.com/envoyproxy/envoy in CyberXYZ Check at https://cyberxyz.io/check?q=github.com%2Fenvoyproxy%2Fenvoy . The xyz Scanner checks a project's dependencies, and CyberXYZ Proxy checks each package as it is installed.
Checked 2026-11-14 at 06:22 UTC. The most recent advisory here was published 2026-03-10. Updated continuously from NVD, GHSA, OSV and CNA feeds.
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