CVE-2017-12621

critical Apache
CVSS v3 Base Score
9.8
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
EPSS Score
0.8%
Exploitation probability in 30 days
Top 27% most likely to be exploited
Attack Characteristics
Attack Vector
Network
Attack Complexity
Low
Privileges Required
None
User Interaction
None
Confidentiality
High
Integrity
High
Availability
High
Published: September 28, 2017 (3151 days ago)
Last Modified: May 13, 2026
Vendor: Apache
Source: NVD

Description

During Jelly (xml) file parsing with Apache Xerces, if a custom doctype entity is declared with a "SYSTEM" entity with a URL and that entity is used in the body of the Jelly file, during parser instantiation the parser will attempt to connect to said URL. This could lead to XML External Entity (XXE) attacks in Apache Commons Jelly before 1.0.1.

CWE

CWE-611

Affected Products

apache commons jelly

References

🔗 www.securityfocus.com 🔗 www.securitytracker.com 🔗 issues.apache.org 🔗 lists.apache.org 🔗 www.securityfocus.com