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CVE-2026-6994

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.
Lifecycle PUBLISHED1 preserved revisionFact urn:baitaphish:canonical-cve-fact-revision:v2:cfffffb00bff536249f256365144c8ee0baa6f8f6442a0f505fd187a2b68f7ab
Known exploited
Not asserted
Disputed
No
Stale source
No
Conflicts
2

Preserved source conflicts

No provider value was silently selected as the winner.

cvss · 4 assertions

{"metric":{"baseScore":6.3,"baseSeverity":"MEDIUM","vectorString":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L/E:X/RL:O/RC:C","version":"3.1"},"metric_type":"cvssV3_1"}

  • cve_program_cvelist_v5cvss
    urn:baitaphish:normalized-source-record:v2:d8d799737cbae1a1b4a802f54e6762d81d9b21065aeab46a805c727f76a78dee · sha256:948f7b63b167947c… · /containers/cna/metrics/1/cvssV3_1

{"metric":{"baseScore":5.3,"baseSeverity":"MEDIUM","vectorString":"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","version":"4.0"},"metric_type":"cvssV4_0"}

  • cve_program_cvelist_v5cvss
    urn:baitaphish:normalized-source-record:v2:d8d799737cbae1a1b4a802f54e6762d81d9b21065aeab46a805c727f76a78dee · sha256:948f7b63b167947c… · /containers/cna/metrics/0/cvssV4_0

{"metric":{"baseScore":6.5,"vectorString":"AV:N/AC:L/Au:S/C:P/I:P/A:P/E:ND/RL:OF/RC:C","version":"2.0"},"metric_type":"cvssV2_0"}

  • cve_program_cvelist_v5cvss
    urn:baitaphish:normalized-source-record:v2:d8d799737cbae1a1b4a802f54e6762d81d9b21065aeab46a805c727f76a78dee · sha256:948f7b63b167947c… · /containers/cna/metrics/3/cvssV2_0

{"metric":{"baseScore":6.3,"baseSeverity":"MEDIUM","vectorString":"CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L/E:X/RL:O/RC:C","version":"3.0"},"metric_type":"cvssV3_0"}

  • cve_program_cvelist_v5cvss
    urn:baitaphish:normalized-source-record:v2:d8d799737cbae1a1b4a802f54e6762d81d9b21065aeab46a805c727f76a78dee · sha256:948f7b63b167947c… · /containers/cna/metrics/2/cvssV3_0
cwe · 2 assertions

{"cweId":"CWE-74","description":"Injection","lang":"en","type":"CWE"}

  • cve_program_cvelist_v5cwe
    urn:baitaphish:normalized-source-record:v2:d8d799737cbae1a1b4a802f54e6762d81d9b21065aeab46a805c727f76a78dee · sha256:948f7b63b167947c… · /containers/cna/problemTypes/0/descriptions/0

{"cweId":"CWE-707","description":"Improper Neutralization","lang":"en","type":"CWE"}

  • cve_program_cvelist_v5cwe
    urn:baitaphish:normalized-source-record:v2:d8d799737cbae1a1b4a802f54e6762d81d9b21065aeab46a805c727f76a78dee · sha256:948f7b63b167947c… · /containers/cna/problemTypes/1/descriptions/0

Affected products and versions

1 source assertion
{"modules":["Query Parameter Handler"],"product":"Envoy","vendor":"n/a","versions":[{"status":"affected","version":"1.0"},{"status":"affected","version":"1.1"},{"status":"affected","version":"1.2"},{"status":"affected","version":"1.3"},{"status":"affected","version":"1.4"},{"status":"affected","version":"1.5"},{"status":"affected","version":"1.6"},{"status":"affected","version":"1.7"},{"status":"affected","version":"1.8"},{"status":"affected","version":"1.9"},{"status":"affected","version":"1.10"},{"status":"affected","version":"1.11"},{"status":"affected","version":"1.12"},{"status":"affected…
  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:d8d799737cbae1a1b4a802f54e6762d81d9b21065aeab46a805c727f76a78dee · sha256:948f7b63b167947c… · /containers/cna/affected/0

Provider-owned CVSS observations

4 source assertions
{"metric":{"baseScore":6.3,"baseSeverity":"MEDIUM","vectorString":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L/E:X/RL:O/RC:C","version":"3.1"},"metric_type":"cvssV3_1"}
  • cve_program_cvelist_v5cvss
    urn:baitaphish:normalized-source-record:v2:d8d799737cbae1a1b4a802f54e6762d81d9b21065aeab46a805c727f76a78dee · sha256:948f7b63b167947c… · /containers/cna/metrics/1/cvssV3_1
{"metric":{"baseScore":5.3,"baseSeverity":"MEDIUM","vectorString":"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","version":"4.0"},"metric_type":"cvssV4_0"}
  • cve_program_cvelist_v5cvss
    urn:baitaphish:normalized-source-record:v2:d8d799737cbae1a1b4a802f54e6762d81d9b21065aeab46a805c727f76a78dee · sha256:948f7b63b167947c… · /containers/cna/metrics/0/cvssV4_0
{"metric":{"baseScore":6.5,"vectorString":"AV:N/AC:L/Au:S/C:P/I:P/A:P/E:ND/RL:OF/RC:C","version":"2.0"},"metric_type":"cvssV2_0"}
  • cve_program_cvelist_v5cvss
    urn:baitaphish:normalized-source-record:v2:d8d799737cbae1a1b4a802f54e6762d81d9b21065aeab46a805c727f76a78dee · sha256:948f7b63b167947c… · /containers/cna/metrics/3/cvssV2_0
{"metric":{"baseScore":6.3,"baseSeverity":"MEDIUM","vectorString":"CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L/E:X/RL:O/RC:C","version":"3.0"},"metric_type":"cvssV3_0"}
  • cve_program_cvelist_v5cvss
    urn:baitaphish:normalized-source-record:v2:d8d799737cbae1a1b4a802f54e6762d81d9b21065aeab46a805c727f76a78dee · sha256:948f7b63b167947c… · /containers/cna/metrics/2/cvssV3_0

CWE assertions

2 source assertions
{"cweId":"CWE-74","description":"Injection","lang":"en","type":"CWE"}
  • cve_program_cvelist_v5cwe
    urn:baitaphish:normalized-source-record:v2:d8d799737cbae1a1b4a802f54e6762d81d9b21065aeab46a805c727f76a78dee · sha256:948f7b63b167947c… · /containers/cna/problemTypes/0/descriptions/0
{"cweId":"CWE-707","description":"Improper Neutralization","lang":"en","type":"CWE"}
  • cve_program_cvelist_v5cwe
    urn:baitaphish:normalized-source-record:v2:d8d799737cbae1a1b4a802f54e6762d81d9b21065aeab46a805c727f76a78dee · sha256:948f7b63b167947c… · /containers/cna/problemTypes/1/descriptions/0

Source references

5 source assertions
{"tags":["patch"],"url":"https://github.com/envoyproxy/envoy/commit/f8f4f1e02fdc64ecd4acf2d903208dd7285ad3a4"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:d8d799737cbae1a1b4a802f54e6762d81d9b21065aeab46a805c727f76a78dee · sha256:948f7b63b167947c… · /containers/cna/references/4
{"tags":["issue-tracking","patch"],"url":"https://github.com/envoyproxy/envoy/pull/43502/"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:d8d799737cbae1a1b4a802f54e6762d81d9b21065aeab46a805c727f76a78dee · sha256:948f7b63b167947c… · /containers/cna/references/3
{"name":"Submit #797241 | Envoy >= 1.33.0 Injection (CWE-74)","tags":["third-party-advisory"],"url":"https://vuldb.com/submit/797241"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:d8d799737cbae1a1b4a802f54e6762d81d9b21065aeab46a805c727f76a78dee · sha256:948f7b63b167947c… · /containers/cna/references/2
{"name":"VDB-359546 | Envoy Query Parameter header_mutation.cc params.add injection","tags":["vdb-entry","technical-description"],"url":"https://vuldb.com/vuln/359546"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:d8d799737cbae1a1b4a802f54e6762d81d9b21065aeab46a805c727f76a78dee · sha256:948f7b63b167947c… · /containers/cna/references/0
{"name":"VDB-359546 | CTI Indicators (IOB, IOC, TTP, IOA)","tags":["signature","permissions-required"],"url":"https://vuldb.com/vuln/359546/cti"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:d8d799737cbae1a1b4a802f54e6762d81d9b21065aeab46a805c727f76a78dee · sha256:948f7b63b167947c… · /containers/cna/references/1

Attribution and limitations

  • CVE Program CVEList V5: Reproduce the MITRE copyright designation and CVE license in copies. Source →

Provider severity values are preserved separately. Baitaphish does not convert them into a risk rating, infer affected products, or treat EPSS as observed exploitation.

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