CVE-2021-29258

    Dashboard / Vulnerabilities / CVE-2021-29258

    CVE-2021-29258

    Published: 20 May 2021Last Modified: 7 Aug 2026

    Summary:

    Details: 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.

    References: https://blog.envoyproxy.io, https://github.com/envoyproxy/envoy/releases/tag/v1.14.0, https://github.com/envoyproxy/envoy/security/advisories/GHSA-rqvq-hxw5-776j, https://github.com/envoyproxy/envoy/security/advisories/GHSA-xw4q-6pj2-5gfg, https://github.com/envoyproxy/envoy-setec/pull/230

    Affected packages

    Package

    Name:

    Purl:

    Affected ranges

    Type: GIT

    Events:

    Introduced- ca0d61134a84ce644c7f46549a06a99579fb97c0
    Fixed -None

    Affected versions

    1.14.6

    Common Vulnerability Scoring System

    Attack Vector
    Network
    Adjacent
    Local
    Physical
    Privileges Required
    None
    Low
    High
    User Interaction
    None
    Required
    Scope
    Unchanged
    Changed
    Confidentiality
    None
    Low
    High
    Integrity
    None
    Low
    High
    Availability
    None
    Low
    High
    CVE-2021-29258 | CVE-DB