Web Cache Poisoning

published 2020-11-08 6 y ago modified 2026-09-10 1 mo ago also GHSA-jgrh-5m3h-9c5f , EUVD-2020-1460

cvss: 5.9; version 3.1, CNA
cisa kev: Not listed; not in CISA's catalog
epss: 1.8%; EPSS 1.8% chance of exploitation in 30 days, percentile 78%
public exploits: 0; none known

This affects the package find-my-way before 2.2.5, from 3.0.0 and before 3.0.5. It accepts the Accept-Version' header by default, and if versioned routes are not being used, this could lead to a denial of service. Accept-Version can be used as an unkeyed header in a cache poisoning attack.

Patch / fix

fixed in 2 links 1

npm find-my-way 2.2.5, 3.0.5
n/a find-my-way 2.2.5, 3.0.5

github.com/delvedor/find-my-way@ab40835 commit

Exploit prediction

1.78% chance of exploitation in the next 30 days, higher than 78% of all scored CVEs (FIRST EPSS, 2026-11-08).

CVSS scores

assigned by	version	score	vector
CNA	3.1	5.9	CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H/E:P/RL:O/RC:C
CNA	3.1	5.9	CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H
NVD	3.1	7.5	CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
NVD	2.0	5.0	AV:N/AC:L/Au:N/C:N/I:N/A:P
GitHub	3.1	5.9	CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H

Affected packages

ecosystem	package	affected	fixed in
npm	find-my-way	<2.2.5 >=3.0.0, <3.0.5	2.2.5 3.0.5

Affected products

n/a find-my-way

Classification

Weakness

CWE-444 Inconsistent Interpretation of HTTP Requests

References

github.com /delvedor/find-my-way/commit/ab408354690e6b9cf3c4724befb3b3fa4bb90aac
web, patch, third-party-advisory
snyk.io /vuln/SNYK-JS-FINDMYWAY-1038269
web, third-party-advisory
nvd.nist.gov /vuln/detail/CVE-2020-7764
advisory
npmjs.com /package/find-my-way
web

Sources

CVE List CVE-2020-7764
GitHub Advisory GHSA-jgrh-5m3h-9c5f
NVD CVE-2020-7764

Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.

Summary