Medium severity6.3NVD Advisory· Published Apr 25, 2026· Updated Apr 27, 2026

CVE-2026-6994

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.

Affected products

Envoyproxy/Envoyreferences

Patches

No patches discovered yet.

Vulnerability mechanics

AI mechanics synthesis has not run for this CVE yet.

References

github.com/envoyproxy/envoy/commit/f8f4f1e02fdc64ecd4acf2d903208dd7285ad3a4nvd
github.com/envoyproxy/envoy/pull/43502/nvd
vuldb.com/submit/797241nvd
vuldb.com/vuln/359546nvd
vuldb.com/vuln/359546/ctinvd

News mentions

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cvss	0.410
epss	0.000
exploit	0.000
kev	0.000
patch	0.000
ransomware	0.000