CVE-2021-29258

HighCVSS 7.5/10Last modified Jun 17, 2026

Description

An issue was discovered in Envoy 1.14.0. There is a remotely exploitable crash for HTTP2 Metadata, because an empty METADATA map triggers a Reachable Assertion.

Metrics

CVSS 3.1 7.5/10CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Weakness enumeration

CWE-617

Affected software

Vendor	Product	Versions
n/a	n/a	n/a

References

https://blog.envoyproxy.ioVendor Advisory
https://github.com/envoyproxy/envoy-setec/pull/230Broken Link
https://github.com/envoyproxy/envoy/releases/tag/v1.14.0Third Party Advisory
https://github.com/envoyproxy/envoy/security/advisories/GHSA-xw4q-6pj2-5gfgNot Applicable, Third Party Advisory
https://github.com/envoyproxy/envoy/security/advisories/GHSA-rqvq-hxw5-776jThird Party Advisory
https://blog.envoyproxy.ioVendor Advisory
https://github.com/envoyproxy/envoy-setec/pull/230Broken Link
https://github.com/envoyproxy/envoy/releases/tag/v1.14.0Third Party Advisory
https://github.com/envoyproxy/envoy/security/advisories/GHSA-xw4q-6pj2-5gfgNot Applicable, Third Party Advisory

Timeline

Published: May 20, 2021
Last modified: Jun 17, 2026
NVD status: Modified

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