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CVE-2020-26299

28
FAUCET Score

CVE-2020-26299 is a critical path traversal vulnerability affecting ftp-srv versions prior to 4.4.0, specifically on Windows machines. Attackers can exploit this flaw using standard FTP commands (CWD, UPDR) to escape the user's defined root directory due to improper handling of Windows path separators. With a CVSS score of 9.6, this vulnerability allows an unauthenticated attacker to achieve high confidentiality and integrity impacts. There is currently no evidence of active exploitation, public exploit code, or significant community discussion surrounding this CVE.

Impacted Technologies

VendorProductVersion(s)CPE
< 4.4.0CPE matchmatch criteria
cpe:2.3:a:ftp-srv_project:ftp-srv:*:*:*:*:*:node.js:*:*

CVSS Data

CVSS version used by this source: 3.1

6.3MEDIUM

CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:C/C:N/I:H/A:N

Attack Vector
NETWORK
Attack Complexity
HIGH
Privileges Required
LOW
User Interaction
NONE
Scope
CHANGED
Confidentiality Impact
NONE
Integrity Impact
HIGH
Availability Impact
NONE
Exploitability Score
1.8
Impact Score
4.0
CvssVersion
3.1

Exploit Intelligence

EPSS Score
1.86%
Probability of exploitation in next 30 days
EPSS Percentile
77.1%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0186 is in the 82nd percentile among its peer group of 1,124 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.1 Reddit, 1.0 Bluesky, 0.5 Mastodon, and 1.6 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.3 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Patch Available

Vendor Patches (2)

github_advisorypatch availablevia nvd_reference
View patch
npmpatch availablevia ghsa
Product: ftp-srvFixed in: 4.4.0

Vendor Advisories (2)

npmGHSA-pmw4-jgxx-pcq9medium

File System Bounds Escape

Feb 10, 2021
redhatCVE-2020-26299Moderate

nodejs-ftp-srv: Path traversal in path.resolve function

Feb 10, 2021

References

github.com / autovance/ftp-srv/commit/457b859450a37cba10ff3c431eb4aa67771122e3
PatchThird Party Advisory
github.com / autovance/ftp-srv/issues/167
ExploitPatchThird Party Advisory
github.com / autovance/ftp-srv/issues/225
ExploitThird Party Advisory
github.com / autovance/ftp-srv/pull/224
PatchThird Party Advisory
github.com / autovance/ftp-srv/security/advisories/GHSA-pmw4-jgxx-pcq9
ExploitThird Party Advisory
npmjs.com / package/ftp-srv
ProductThird Party Advisory