High 8.7Published Jul 16, 2026

CVE-2026-55629Whistle: Path traversal

Updated under an hour ago (Oct 27, 2026, 10:10 AM ET)

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No exploitation reported and no EPSS estimate yet.

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Every CVE for avwo whistle

Exploited in the last 30 days

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.

CVSS: 8.7 HIGH (v4.0, CNA)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
Weakness (CWE): CWE-22
Known exploited: Not in CISA's KEV catalog
EPSS (exploitation in the next 30 days): Not loaded for this CVE
Assigned by: GitHub_M
NVD analysis: Deferred
Record last updated: Jul 17, 2026
First seen by InfoSec Signals: Oct 9, 2026

Affected products

Affected products

avwo whistle avwo:whistle (from the name)	before 2.10.3	CNA record

References

References

https://github.com/avwo/whistle/security/advisories/GHSA-3vfr-4gwf-qxfp	x-refsource-confirm
https://github.com/avwo/whistle/commit/777bcf69bae2972aa7138a158c91619185653cf5	x-refsource-misc
http://github.com/avwo/whistle/releases/tag/v2.10.3	x-refsource-misc

The CVE record on cve.org NVD's entry

The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.