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CVE-2019-3990

17
FAUCET Score

CVE-2019-3990 describes a user enumeration flaw in Linux Foundation Harbor, specifically within the "/users" API endpoint. This vulnerability allows unauthenticated attackers to bypass intended administrative restrictions and gather information about registered users through the search functionality. With a CVSS score of 4.3 (Medium), this issue has a low attack complexity and requires no user interaction, but only results in a limited disclosure of information. There is currently no public exploit code available, nor is there evidence of active exploitation or significant community discussion surrounding this CVE.

Impacted Technologies

VendorProductVersion(s)CPE
>= 1.7.0, <= 1.7.6CPE matchmatch criteria
cpe:2.3:a:linuxfoundation:harbor:*:*:*:*:*:*:*:*
>= 1.8.0, <= 1.8.5CPE matchmatch criteria
cpe:2.3:a:linuxfoundation:harbor:*:*:*:*:*:*:*:*
1.9.0CPE matchmatch criteria
cpe:2.3:a:linuxfoundation:harbor:1.9.0:-:*:*:*:*:*:*
1.9.0CPE matchmatch criteria
cpe:2.3:a:linuxfoundation:harbor:1.9.0:rc1:*:*:*:*:*:*
1.9.0CPE matchmatch criteria
cpe:2.3:a:linuxfoundation:harbor:1.9.0:rc2:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.1

4.3MEDIUM

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

Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
LOW
Integrity Impact
NONE
Availability Impact
NONE
Exploitability Score
2.8
Impact Score
1.4
CvssVersion
3.1

Exploit Intelligence

EPSS Score
1.04%
Probability of exploitation in next 30 days
EPSS Percentile
60.4%
Percentile rank of EPSS score among Peer Group
As of 2026-07-28
Model: v2026.06.15
This CVE's current EPSS score of 0.0104 is in the 74th percentile among its peer group of 21,977 CVEs.

Social Chatter

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

Media Mentions

No media coverage found for this CVE.

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

Remediation

Patch Available

Vendor Patches (6)

github_advisorypatch availablevia nvd_reference
View patch
boschvendor investigatingvia llm_extracted
maxkbvendor investigatingvia llm_extracted
naturalintelligencevendor investigatingvia llm_extracted
netgearvendor investigatingvia llm_extracted
opnsensevendor investigatingvia llm_extracted

Vendor Advisories (5)

netgearllm-netgear-666bb2c0be544d45MEDIUM

Harbor.io User Enumeration Vulnerability

Dec 3, 2019
maxkbllm-maxkb-5b63935fcf11a752MEDIUM

Harbor.io User Enumeration Vulnerability

Dec 3, 2019
boschllm-bosch-334b8cf393802c42MEDIUM

Harbor.io User Enumeration Vulnerability

Dec 3, 2019
opnsensellm-opnsense-d15393c68f2a9905MEDIUM

Harbor.io User Enumeration Vulnerability

Dec 3, 2019
naturalintelligencellm-naturalintelligence-cc8b4cef87cd17caMEDIUM

Harbor.io User Enumeration Vulnerability

Dec 3, 2019

References

github.com / goharbor/harbor/security/advisories/GHSA-6qj9-33j4-rvhg
PatchThird Party Advisory
tenable.com / security/research/tra-2019-50
Third Party Advisory