Buffer Overflow Affecting envoyproxy/envoy package, versions [1.35.0,1.35.13)[1.36.0,1.36.9)[1.37.0,1.37.5)[1.38.0,1.38.3)
Threat Intelligence
The probability is the direct output of the EPSS model, and conveys an overall sense of the threat of exploitation in the wild. The percentile measures the EPSS probability relative to all known EPSS scores. Note: This data is updated daily, relying on the latest available EPSS model version. Check out the EPSS documentation for more details.
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Test your applications- Snyk IDSNYK-UNMANAGED-ENVOYPROXYENVOY-17661094
- published28 Jun 2026
- disclosed26 Jun 2026
- creditUnknown
Introduced: 26 Jun 2026
CVE-2026-48706 (opens in a new tab)How to fix?
Upgrade envoyproxy/envoy to version 1.35.13, 1.36.9, 1.37.5, 1.38.3 or higher.
Overview
Affected versions of this package are vulnerable to Buffer Overflow in the TcpStatsdSink process when handling exceptionally long statistic names. An attacker can cause a heap buffer overflow by sending an HTTP or gRPC request with an extremely long request path, which is recorded by the grpc_stats filter when configured with stats_for_all_methods: true. This can result in a process crash or potentially allow remote code execution.