Envoy Query Parameter header_mutation.cc params.add injection_CVE-2026-6994

5.3 / 10

MEDIUM

CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:X

Description

A weakness has been identified in Envoy up to 1.33.0. Affected is the function params.add of the file source/extensions/filters/http/header_mutation/header_mutation.cc of the component Query Parameter Handler. This manipulation causes injection. Remote exploitation of the attack is possible. Patch name: f8f4f1e02fdc64ecd4acf2d903208dd7285ad3a4. It is suggested to install a patch to address this issue.

Basic Information

ID CVE-2026-6994

Source VulDB

Published Apr 25, 2026 at 19:00

Affected Product

Vendor n/a

Product Envoy

Version 1.0

Affected Versions n/a Envoy 1.0
n/a Envoy 1.1
n/a Envoy 1.2
n/a Envoy 1.3
n/a Envoy 1.4
n/a Envoy 1.5
n/a Envoy 1.6
n/a Envoy 1.7
n/a Envoy 1.8
n/a Envoy 1.9
n/a Envoy 1.10
n/a Envoy 1.11
n/a Envoy 1.12
n/a Envoy 1.13
n/a Envoy 1.14
n/a Envoy 1.15
n/a Envoy 1.16
n/a Envoy 1.17
n/a Envoy 1.18
n/a Envoy 1.19
n/a Envoy 1.20
n/a Envoy 1.21
n/a Envoy 1.22
n/a Envoy 1.23
n/a Envoy 1.24
n/a Envoy 1.25
n/a Envoy 1.26
n/a Envoy 1.27
n/a Envoy 1.28
n/a Envoy 1.29
n/a Envoy 1.30
n/a Envoy 1.31
n/a Envoy 1.32
n/a Envoy 1.33.0

CWE Classification

CWE-74 CWE-707

References

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    "lastseen": "",
    "description": "A weakness has been identified in Envoy up to 1.33.0. Affected is the function params.add of the file source/extensions/filters/http/header_mutation/header_mutation.cc of the component Query Parameter Handler. This manipulation causes injection. Remote exploitation of the attack is possible. Patch name: f8f4f1e02fdc64ecd4acf2d903208dd7285ad3a4. It is suggested to install a patch to address this issue.",
    "published": "2026-04-25T19:00:19.151Z",
    "modified": "2026-04-25T19:00:19.151Z",
    "type": "cve",
    "title": "Envoy Query Parameter header_mutation.cc params.add injection",
    "source": "VulDB",
    "references": "https://vuldb.com/vuln/359546\nhttps://vuldb.com/vuln/359546/cti\nhttps://vuldb.com/submit/797241\nhttps://github.com/envoyproxy/envoy/pull/43502/\nhttps://github.com/envoyproxy/envoy/commit/f8f4f1e02fdc64ecd4acf2d903208dd7285ad3a4",
    "id": "CVE-2026-6994",
    "bulletinFamily": "",
    "cwe": [
        "CWE-74",
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    ],
    "cvelist": null,
    "sourceData": "n/a Envoy 1.0\nn/a Envoy 1.1\nn/a Envoy 1.2\nn/a Envoy 1.3\nn/a Envoy 1.4\nn/a Envoy 1.5\nn/a Envoy 1.6\nn/a Envoy 1.7\nn/a Envoy 1.8\nn/a Envoy 1.9\nn/a Envoy 1.10\nn/a Envoy 1.11\nn/a Envoy 1.12\nn/a Envoy 1.13\nn/a Envoy 1.14\nn/a Envoy 1.15\nn/a Envoy 1.16\nn/a Envoy 1.17\nn/a Envoy 1.18\nn/a Envoy 1.19\nn/a Envoy 1.20\nn/a Envoy 1.21\nn/a Envoy 1.22\nn/a Envoy 1.23\nn/a Envoy 1.24\nn/a Envoy 1.25\nn/a Envoy 1.26\nn/a Envoy 1.27\nn/a Envoy 1.28\nn/a Envoy 1.29\nn/a Envoy 1.30\nn/a Envoy 1.31\nn/a Envoy 1.32\nn/a Envoy 1.33.0",
    "sourceHref": "",
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    "href": "",
    "category_name": "CVE",
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    "product": "Envoy",
    "version": "1.0",
    "vendor": "n/a",
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