CVE-2026-6994 PUBLISHED

Envoy Query Parameter header_mutation.cc params.add injection

Assigner: VulDB
Reserved: 24.04.2026 Published: 25.04.2026 Updated: 25.04.2026

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.

Metrics

CVSS Vector: 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
CVSS Score: 5.3

Product Status

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

Credits

  • lukefr09 (VulDB User) reporter

References

Problem Types

  • Injection CWE
  • Improper Neutralization CWE