PT-2026-60564 · Avwo · Whistle

CVE-2026-55629 · Published 2026-07-16 · Updated 2026-07-16

NVD

CVSS v4.0

8.7

High

Base vector

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

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.

Fix

Path traversal

Weakness Enumeration

CWE-22

Related Identifiers

CVE-2026-55629

Affected Products

Whistle

References · 4

• https://nvd.nist.gov/vuln/detail/CVE-2026-55629 · Security Note
• https://github.com/avwo/whistle/commit/777bcf69bae2972aa7138a158c91619185653cf5 · Note
• https://github.com/avwo/whistle/security/advisories/GHSA-3vfr-4gwf-qxfp · Note
• http://github.com/avwo/whistle/releases/tag/v2.10.3 · Note