Use After Free Affecting envoyproxy/envoy package, versions [1.36.0,1.36.5)[1.37.0,1.37.1)
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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- published12 Mar 2026
- disclosed10 Mar 2026
- creditUnknown
Introduced: 10 Mar 2026
CVE-2026-26330 (opens in a new tab)How to fix?
Upgrade envoyproxy/envoy to version 1.36.5, 1.37.1 or higher.
Overview
Affected versions of this package are vulnerable to Use After Free in the rate limit filter when the response phase limit with apply_on_stream_done is enabled and the response phase limit request fails directly. An attacker can cause a crash by triggering a failed response phase limit request after the request phase limit has completed, leading to access of stale internal state in the gRPC client.