Summary iPlain-English security verdict for Envoy, generated from its current health score, actively-exploited vulnerabilities, and latest supported version.
Envoy currently scores 100/100 — healthy. 2 actively-exploited vulnerabilities (CISA KEV) affect older releases (e.g. CVE-2023-44487) — staying on the latest supported version keeps you clear of them. The latest supported release is 1.40.2. It's on the latest patch with no significant known issues — keep it current.
Disclosure trend iNew CVEs published for Envoy each year (NVD). A higher bar means more disclosures that year — more scrutiny, not necessarily less safe.
Patch priority — what to act on iThe issues to fix first — actively exploited (CISA KEV) first, then by exploitation probability (EPSS), then severity. Each row's "→ fixed in" is the earliest version that patches it; "see advisory" means no fixed version is published.
Most urgent first — actively exploited, then likeliest to be exploited.
CVE-2023-44487 HIGH exploited Uncontrolled resource consumption EPSS 100% → see advisory CVE-2026-111497 CRITICAL exploited CWE-252 EPSS 83% → fixed in 1.39.3Get alerted about Envoy
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Versions & lifecycle iWhen each release line stops receiving security patches (end-of-life). After EOL there are no more fixes — plan upgrades before these dates.
How long each Envoy release line is supported — and when it sunsets. Select a line for its full report.
Full Envoy end-of-life dates & support timeline →
1.40 latest 1.40.2 Supported until 2027-10-131.40.2 → 1.39 latest 1.39.6 Supported until 2027-07-141.39.6 → 1.38 latest 1.38.9 Supported until 2027-04-231.38.9 → 1.37 latest 1.37.11 Supported until 2027-01-131.37.11 → 1.36 latest 1.36.13 End of life ended 2026-10-141.36.13 → 1.35 latest 1.35.13 End of life ended 2026-07-231.35.13 → 1.34 latest 1.34.14 End of life ended 2026-04-151.34.14 → 1.33 latest 1.33.14 End of life ended 2026-01-141.33.14 → 1.32 latest 1.32.13 End of life ended 2025-10-151.32.13 → 1.31 latest 1.31.10 End of life ended 2025-07-191.31.10 → See all upcoming end-of-life dates →Frequently asked
Is Envoy safe and patched?
Envoy currently scores 100/100 — healthy. 2 actively-exploited vulnerabilities (CISA KEV) affect older releases (e.g. CVE-2023-44487) — staying on the latest supported version keeps you clear of them. The latest supported release is 1.40.2. It's on the latest patch with no significant known issues — keep it current.
What should I do about Envoy now?
Upgrade Envoy to the latest supported release (1.40.2) or later, which clears the actively-exploited issues affecting older versions, then confirm against Envoy Proxy's official advisory.
When does Envoy reach end-of-life?
The latest supported Envoy release is 1.40.2. After end-of-life a release no longer receives security patches.
Which versions of Envoy are still receiving security updates?
Supported Envoy release lines (latest 1.40.2): 1.40, 1.39, 1.38, 1.37. End-of-life releases no longer receive security patches.
Informational only, from public data (NVD · CISA KEV · EPSS · endoflife.date), and can lag or miss vendor-specific fixes. Always confirm against Envoy Proxy's official advisory before you patch or upgrade — Envoy official site ↗