{"id":"GHSA-mf24-chxh-hmvj","revision":null,"records":[{"revision":"629522e2d03c4577ab18ea7bbe680cbe","observedAt":"2026-10-23T15:48:27.903+00:00","statement":{"source":"cve-program","id":"CVE-2025-25294","aliases":[],"title":"Envoy Gateway Log Injection Vulnerability","description":"Envoy Gateway is an open source project for managing Envoy Proxy as a standalone or Kubernetes-based application gateway. In all Envoy Gateway versions prior to 1.2.7 and 1.3.1 a default Envoy Proxy access log configuration is used. This format is vulnerable to log injection attacks. If the attacker uses a specially crafted user-agent which performs json injection, then he could add and overwrite fields to the access log. This vulnerability is fixed in 1.3.1 and 1.2.7. One can overwrite the old text based default format with JSON formatter by modifying the \"EnvoyProxy.spec.telemetry.accessLog\" setting.","state":0,"publishedAt":"2025-03-06T18:46:23.913+00:00","modifiedAt":"2025-03-06T20:34:27.649+00:00","affected":[{"ecosystem":"Vendor product","name":"gateway","ranges":[],"versions":[],"rawVersionEvidence":"{\n                    \"vendor\": \"envoyproxy\",\n                    \"product\": \"gateway\",\n                    \"versions\": [\n                        {\n                            \"version\": \">= 1.3.0-rc.1, < 1.3.1\",\n                            \"status\": \"affected\"\n                        },\n                        {\n                            \"version\": \"< 1.2.7\",\n                            \"status\": \"affected\"\n                        }\n                    ]\n                }"}],"metrics":[{"system":"CVSS 3.1","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N","score":5.3,"severity":"MEDIUM"}],"references":["https://github.com/envoyproxy/gateway/security/advisories/GHSA-mf24-chxh-hmvj","https://github.com/envoyproxy/gateway/commit/8f48f5199cf1bbb9a8ac0695c5171bfef6c9198a"],"sourceUrl":"https://www.cve.org/CVERecord?id=CVE-2025-25294","license":"CVE Program Terms of Use","key":"cve-program:CVE-2025-25294","identifiers":["CVE-2025-25294"]},"retained":false,"historicalAffected":[]},{"revision":"6c465ff1e11a41429b98f5b911fc15e3","observedAt":"2026-11-15T05:34:57.032+00:00","statement":{"source":"euvd","id":"EUVD-2025-7667","aliases":["CVE-2025-25294","GHSA-mf24-chxh-hmvj"],"title":"Envoy Gateway is an open source project for managing Envoy Proxy as a standalone or Kubernetes-based application gateway. In all Envoy Gateway versions prior to 1.2.7 and 1.3.1 a default Envoy Proxy access log configuration is used. This fo…","description":"Envoy Gateway is an open source project for managing Envoy Proxy as a standalone or Kubernetes-based application gateway. In all Envoy Gateway versions prior to 1.2.7 and 1.3.1 a default Envoy Proxy access log configuration is used. This format is vulnerable to log injection attacks. If the attacker uses a specially crafted user-agent which performs json injection, then he could add and overwrite fields to the access log. This vulnerability is fixed in 1.3.1 and 1.2.7. One can overwrite the old text based default format with JSON formatter by modifying the \"EnvoyProxy.spec.telemetry.accessLog\" setting.","state":0,"publishedAt":null,"modifiedAt":null,"affected":[],"metrics":[{"system":"EUVD CVSS 3.1","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N","score":5.3,"severity":null}],"references":["https://github.com/envoyproxy/gateway/security/advisories/GHSA-mf24-chxh-hmvj","https://github.com/envoyproxy/gateway/commit/8f48f5199cf1bbb9a8ac0695c5171bfef6c9198a"],"sourceUrl":"https://euvd.enisa.europa.eu/vulnerability/EUVD-2025-7667","license":"ENISA EUVD · source terms and attribution apply","enrichment":{"sourceStatus":null,"weaknesses":[],"productCriteria":[],"sourceDates":{"datePublished":"Mar 6, 2025, 6:46:23 PM","dateUpdated":"Mar 6, 2025, 8:34:27 PM"},"relatedAdvisories":[{"id":"openSUSE-SU-2025:14889-1","title":"govulncheck-vulndb-0.0.20250312T181707-1.1 on GA media","vulnerabilityIds":["CVE-2024-57603","CVE-2024-57604","CVE-2025-0426","CVE-2025-1243","CVE-2025-1293","CVE-2025-1412","CVE-2025-20051","CVE-2025-22870","CVE-2025-22952","CVE-2025-23387","CVE-2025-23388","CVE-2025-23389","CVE-2025-24016","CVE-2025-24526","CVE-2025-24806","CVE-2025-24976","CVE-2025-25196","CVE-2025-25199","CVE-2025-25204","CVE-2025-25279","CVE-2025-25294","CVE-2025-27088","CVE-2025-27090","CVE-2025-27100","CVE-2025-27112","CVE-2025-27144","CVE-2025-27155","CVE-2025-27414","CVE-2025-27421","CVE-2025-27507","CVE-2025-27509"]}],"note":"EUVD source date text has no stated timezone and is retained without inventing a UTC instant. Related bulletin membership is not an alias, common cause or applicability claim. A missing vector with a zero score is treated as unrated. Complete vendor/product and underlying source evidence remains in the original JSON."},"key":"euvd:EUVD-2025-7667","identifiers":["EUVD-2025-7667","CVE-2025-25294","GHSA-mf24-chxh-hmvj"]},"retained":false,"historicalAffected":[]},{"revision":"fedbc6adef8d471990323388ab47b45d","observedAt":"2026-10-25T01:17:35.189+00:00","statement":{"source":"nvd","id":"CVE-2025-25294","aliases":[],"title":"Envoy Gateway is an open source project for managing Envoy Proxy as a standalone or Kubernetes-based application gateway. In all Envoy Gateway versions prior to 1.2.7 and 1.3.1 a default Envoy Proxy access log configuration is used. This fo…","description":"Envoy Gateway is an open source project for managing Envoy Proxy as a standalone or Kubernetes-based application gateway. In all Envoy Gateway versions prior to 1.2.7 and 1.3.1 a default Envoy Proxy access log configuration is used. This format is vulnerable to log injection attacks. If the attacker uses a specially crafted user-agent which performs json injection, then he could add and overwrite fields to the access log. This vulnerability is fixed in 1.3.1 and 1.2.7. One can overwrite the old text based default format with JSON formatter by modifying the \"EnvoyProxy.spec.telemetry.accessLog\" setting.","state":0,"publishedAt":"2025-03-06T19:15:27.267+00:00","modifiedAt":"2026-06-17T09:00:38.02+00:00","affected":[],"metrics":[{"system":"CVSS 3.1 · security-advisories@github.com · Secondary","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N","score":5.3,"severity":"MEDIUM"}],"references":["https://github.com/envoyproxy/gateway/commit/8f48f5199cf1bbb9a8ac0695c5171bfef6c9198a","https://github.com/envoyproxy/gateway/security/advisories/GHSA-mf24-chxh-hmvj"],"sourceUrl":"https://nvd.nist.gov/vuln/detail/CVE-2025-25294","license":"NIST NVD usage terms; underlying source attribution retained","enrichment":{"sourceStatus":"Analyzed","weaknesses":["CWE-117"],"productCriteria":["cpe:2.3:a:envoyproxy:gateway:*:*:*:*:*:*:*:*"],"sourceDates":{"published":"2025-03-06T19:15:27.267","lastModified":"2026-06-17T09:00:38.020"},"relatedAdvisories":[],"note":"NVD analysis and CPE criteria are source context, not proof that a package or your environment is affected. Complete affected data, logical configurations and SSVC are retained in the original JSON."},"key":"nvd:CVE-2025-25294","identifiers":["CVE-2025-25294"]},"retained":false,"historicalAffected":[]},{"revision":"03c809fcbe7c4c5c983b1f1e7abe7ffa","observedAt":"2026-10-24T13:19:41.952+00:00","statement":{"source":"osv","id":"GHSA-mf24-chxh-hmvj","aliases":["BIT-envoy-gateway-2025-25294","CVE-2025-25294","GO-2025-3504"],"title":"Envoy Gateway Log Injection Vulnerability","description":"### Impact\nIn all Envoy Gateway versions prior to 1.2.7 and 1.3.1 a default Envoy Proxy access log configuration is used. This format is vulnerable to log injection attacks. \n\nIf the attacker uses a specially crafted user-agent which performs json injection, then he could add and overwrite fields to the access log. \n\nExamples of attacks include:\n\n-  Using following string as user agent : `HELLO-WORLD\", \"evil-ip\": \"1.1.1.1\", \"x-forwarded-for\": \"1.1.1.1` would lead to setting of new access log properties and overwrite of existing properties. Existing properties such as the value of the X-Forwarded-For header may have importance for security analysis of access logs, and their overwrite can be used to hide malicious activity. \n\n- Using the following string as user-agent : `\"` which renders an invalid json document. The invalid document may fail to be processed by observability solutions, which would allow attacker to hide malicious activity.  \n\n### Patches\n1.3.1, 1.2.7\n\n### Fix\nUsing JSON format as the default format for access logs. The logged document will contain the same key and values as before. Only the order of properties is different inside the logged document.\n\n### Workaround\nOne can overwrite the old text based default format with JSON formatter by setting the following property: \n\"EnvoyProxy.spec.telemetry.[accessLog](https://gateway.envoyproxy.io/v1.3/api/extension_types/#proxyaccesslog)\" to \n\n```\nsettings:\n- format:\n    type: JSON\n    json:\n      start_time: '%START_TIME%'\n      method: '%REQ(:METHOD)%'\n      x-envoy-origin-path: '%REQ(X-ENVOY-ORIGINAL-PATH?:PATH)%'\n      protocol: '%PROTOCOL%'\n      response_code: '%RESPONSE_CODE%'\n      response_flags: '%RESPONSE_FLAGS%'\n      response_code_details: '%RESPONSE_CODE_DETAILS%'\n      connection_termination_details: '%CONNECTION_TERMINATION_DETAILS%'\n      upstream_transport_failure_reason: '%UPSTREAM_TRANSPORT_FAILURE_REASON%'\n      bytes_received: '%BYTES_RECEIVED%'\n      bytes_sent: '%BYTES_SENT%'\n      duration: '%DURATION%'\n      x-envoy-upstream-service-time: '%RESP(X-ENVOY-UPSTREAM-SERVICE-TIME)%'\n      x-forwarded-for: '%REQ(X-FORWARDED-FOR)%'\n      user-agent: '%REQ(USER-AGENT)%'\n      x-request-id: '%REQ(X-REQUEST-ID)%'\n      :authority: '%REQ(:AUTHORITY)%'\n      upstream_host: '%UPSTREAM_HOST%'\n      upstream_cluster: '%UPSTREAM_CLUSTER%'\n      upstream_local_address: '%UPSTREAM_LOCAL_ADDRESS%'\n      downstream_local_address: '%DOWNSTREAM_LOCAL_ADDRESS%'\n      downstream_remote_address: '%DOWNSTREAM_REMOTE_ADDRESS%'\n      requested_server_name: '%REQUESTED_SERVER_NAME%'\n      route_name: '%ROUTE_NAME%'\n```\nsee API definition [here](https://gateway.envoyproxy.io/v1.3/api/extension_types/#proxyaccesslogformat)\n\n### References\n_Are there any links users can visit to find out more?_","state":0,"publishedAt":"2025-03-06T19:11:39+00:00","modifiedAt":"2026-09-10T03:50:56.8485598+00:00","affected":[{"ecosystem":"Go","name":"github.com/envoyproxy/gateway","ranges":[{"type":"SEMVER","events":[{"kind":"introduced","version":"0"},{"kind":"fixed","version":"1.2.7"}]}],"versions":[],"rawVersionEvidence":null},{"ecosystem":"Go","name":"github.com/envoyproxy/gateway","ranges":[{"type":"SEMVER","events":[{"kind":"introduced","version":"1.3.0-rc.1"},{"kind":"fixed","version":"1.3.1"}]}],"versions":[],"rawVersionEvidence":null}],"metrics":[{"system":"CVSS_V3","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N","score":null,"severity":null},{"system":"Publisher rating","vector":null,"score":null,"severity":"MODERATE"}],"references":["https://github.com/envoyproxy/gateway/security/advisories/GHSA-mf24-chxh-hmvj","https://nvd.nist.gov/vuln/detail/CVE-2025-25294","https://github.com/envoyproxy/gateway/commit/041d474a70d5921e5d65e6e14ea60e14dac70b01","https://github.com/envoyproxy/gateway/commit/358bed50dcb7b32f39a2edb252fb1399c7fc65dc","https://github.com/envoyproxy/gateway/commit/8f48f5199cf1bbb9a8ac0695c5171bfef6c9198a","https://github.com/envoyproxy/gateway","https://github.com/envoyproxy/gateway/releases/tag/v1.2.7","https://github.com/envoyproxy/gateway/releases/tag/v1.3.1","https://pkg.go.dev/vuln/GO-2025-3504"],"sourceUrl":"https://github.com/advisories/GHSA-mf24-chxh-hmvj","license":"GitHub Advisory Database · CC-BY-4.0","key":"osv:GHSA-mf24-chxh-hmvj","identifiers":["GHSA-mf24-chxh-hmvj","BIT-envoy-gateway-2025-25294","CVE-2025-25294","GO-2025-3504"]},"retained":false,"historicalAffected":[]},{"revision":"3ab7558e9521458da0d5ea7e516d4750","observedAt":"2026-10-24T13:19:41.952+00:00","statement":{"source":"osv","id":"GO-2025-3504","aliases":["BIT-envoy-gateway-2025-25294","CVE-2025-25294","GHSA-mf24-chxh-hmvj"],"title":"Envoy Gateway Log Injection Vulnerability in github.com/envoyproxy/gateway","description":"Envoy Gateway Log Injection Vulnerability in 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· upstream source license applies","key":"osv:GO-2025-3504","identifiers":["GO-2025-3504","BIT-envoy-gateway-2025-25294","CVE-2025-25294","GHSA-mf24-chxh-hmvj"]},"retained":false,"historicalAffected":[]}],"coverage":[{"source":"cisa-kev:global","scope":"Complete CISA KEV catalog; all vendors. Missing entries do not establish absence of exploitation.","generation":"2026-11-15T10:02:17.3763497+00:00","complete":true,"records":1781,"lastAttemptAt":"2026-11-15T10:02:17.3763497+00:00","lastSuccessAt":"2026-11-15T10:02:17.6058686+00:00","error":null,"lastVerifiedAt":"2026-11-15T10:02:17.6058701+00:00","snapshotPublishedAt":null,"importing":false,"stagedRecords":0,"checkedIdentifiers":null,"expectedIdentifiers":null,"failedIdentifiers":null},{"source":"cve-program","scope":"Official CVE Program baseline and cumulative hourly delta; all vendors, published and rejected records","generation":"cve-7de4d7559a5263003f03d9f70577ab06f92ba4178309f26fce53e22a4a959294-3113592d787b958ba87cf6300a2f439f8836169d49c36cdd65ca959c60a1acfe","complete":true,"records":425784,"lastAttemptAt":"2026-11-15T10:02:16.903149+00:00","lastSuccessAt":"2026-11-15T10:02:16.8893294+00:00","error":null,"lastVerifiedAt":"2026-11-15T10:02:16.903149+00:00","snapshotPublishedAt":"2026-11-15T09:28:12+00:00","importing":false,"stagedRecords":0,"checkedIdentifiers":null,"expectedIdentifiers":null,"failedIdentifiers":null},{"source":"euvd","scope":"Rolling EUVD lookups of CVE aliases in current public OSV archives; 500 identifiers per refresh, rechecked after 48 hours. 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Not a global EPSS backfill.","generation":"2026-11-15T10:02:17.3763497+00:00","complete":true,"records":1125,"lastAttemptAt":"2026-11-15T10:02:17.3763497+00:00","lastSuccessAt":"2026-11-15T10:02:17.760821+00:00","error":null,"lastVerifiedAt":"2026-11-15T10:02:17.7608224+00:00","snapshotPublishedAt":null,"importing":false,"stagedRecords":0,"checkedIdentifiers":null,"expectedIdentifiers":null,"failedIdentifiers":null},{"source":"nvd","scope":"Rolling NVD lookups of CVE aliases in current public OSV archives; 500 identifiers per refresh, rechecked after 48 hours. Not a global NVD catalog. Successful not-found lookups count as checked; they do not imply withdrawal or safety. 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