CVE-2026-26309 (GCVE-0-2026-26309)
Vulnerability from cvelistv5
Published
2026-03-10 19:04
Modified
2026-03-10 20:12
CWE
Summary
Envoy is a high-performance edge/middle/service proxy. Prior to 1.37.1, 1.36.5, 1.35.8, and 1.34.13, an off-by-one write in Envoy::JsonEscaper::escapeString() can corrupt std::string null-termination, causing undefined behavior and potentially leading to crashes or out-of-bounds reads when the resulting string is later treated as a C-string. This vulnerability is fixed in 1.37.1, 1.36.5, 1.35.8, and 1.34.13.
Impacted products
Vendor Product Version
envoyproxy envoy Version: >= 1.37.0, < 1.37.1
Version: >= 1.36.0, < 1.36.5
Version: >= 1.35.0, < 1.35.9
Version: < 1.34.13
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Show details on NVD website


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  • Seen: The vulnerability was mentioned, discussed, or seen somewhere by the user.
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