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CVE-2018-1000644

30
FAUCET Score

CVE-2018-1000644 is a critical XML External Entity (XXE) vulnerability affecting Eclipse RDF4j versions prior to 2.4.0 Milestone 2. This flaw allows attackers to exploit a specially crafted RDF file to achieve data disclosure, denial of service, server-side request forgery, and port scanning. With a CVSS score of 10.0 (CRITICAL), it presents a severe risk due to its network-based attack vector and low attack complexity. There is currently no evidence of active exploitation, publicly available exploit code, or significant community discussion surrounding this vulnerability.

Impacted Technologies

VendorProductVersion(s)CPE
< 2.4.0CPE matchmatch criteria
cpe:2.3:a:eclipse:rdf4j:*:*:*:*:*:*:*:*
2.4.0CPE matchmatch criteria
cpe:2.3:a:eclipse:rdf4j:2.4.0:-:*:*:*:*:*:*
2.4.0CPE matchmatch criteria
cpe:2.3:a:eclipse:rdf4j:2.4.0:m1:*:*:*:*:*:*
2.4.0CPE matchmatch criteria
cpe:2.3:a:eclipse:rdf4j:2.4.0:m2:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.0

10.0CRITICAL

CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H

Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
CHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
Exploitability Score
3.9
Impact Score
6.0
CvssVersion
3.0

Exploit Intelligence

EPSS Score
2.03%
Probability of exploitation in next 30 days
EPSS Percentile
79.1%
Percentile rank of EPSS score among Peer Group
As of 2026-07-28
Model: v2026.06.15
This CVE's current EPSS score of 0.0203 is in the 68th percentile among its peer group of 36,897 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.1 Reddit, 0.3 Bluesky, 0.3 Mastodon, and 2.4 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
mavenpatch availablevia ghsa
Product: org.eclipse.rdf4j:rdf4j-runtimeFixed in: 2.4.0

Vendor Advisories (1)

mavenGHSA-6xq8-pvg4-3mf3critical

Eclipse RDF4j vulnerable to XML External Entity

Oct 19, 2018

References

0dd.zone / 2018/08/05/rdf4j-XXE
Third Party Advisory
github.com / eclipse/rdf4j/issues/1056
PatchThird Party Advisory