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.
References (3)
Core 3
Core References
X_Refsource_Confirm x_refsource_confirm
https://github.com/avwo/whistle/security/advisories/GHSA-3vfr-4gwf-qxfp
X_Refsource_Misc x_refsource_misc
https://github.com/avwo/whistle/commit/777bcf69bae2972aa7138a158c91619185653cf5
X_Refsource_Misc x_refsource_misc
http://github.com/avwo/whistle/releases/tag/v2.10.3
Scores
CVSS v4
8.7
EPSS
0.0046
EPSS Percentile
37.3%
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
CISA SSVC
Vulnrichment
Exploitation
poc
Automatable
yes
Technical Impact
partial
Details
CWE
CWE-22
Status
published
Products (1)
avwo/whistle
< 2.10.3
Published
Jul 16, 2026
Tracked Since
Jul 17, 2026