High severityNVD Advisory· Published Jul 16, 2026· Updated Jul 17, 2026
CVE-2026-55629
CVE-2026-55629
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.
Affected packages
Versions sourced from the GitHub Security Advisory.
| Package | Affected versions | Patched versions |
|---|---|---|
whistlenpm | < 2.10.3 | 2.10.3 |
Affected products
1Patches
Vulnerability mechanics
References
5- github.com/advisories/GHSA-3vfr-4gwf-qxfpghsaADVISORY
- nvd.nist.gov/vuln/detail/CVE-2026-55629ghsaADVISORY
- github.com/avwo/whistle/releases/tag/v2.10.3nvdWEB
- github.com/avwo/whistle/commit/777bcf69bae2972aa7138a158c91619185653cf5nvdWEB
- github.com/avwo/whistle/security/advisories/GHSA-3vfr-4gwf-qxfpnvdWEB
News mentions
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