During Jelly (xml) file parsing with Apache Xerces, if a custom doctype entity is declared with a "SYSTEM" entity with a URL and that…

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.

Scores

EPSS (exploitation in 30 days)

8.1% · top 5.1% of all CVEs (6 Nov 2026)

The list uses the assigner's score when there is one, then CISA's, then NVD's: Critical 9.8.

Weakness

• Information Disclosure
• CWE-611 (opens in a new tab)All about CWE-611 and its CVEs

Affected products

• Apache Software Foundation · Apache Commons Jelly

  • affected 1.0

Affected packages

From reviewed advisories of the GitHub Advisory Database.

• Mavencommons-jelly:commons-jellyGHSA-6g33-82gc-3pw5 (opens in a new tab)

References (4)

• https://issues.apache.org/jira/browse/JELLY-293 (opens in a new tab)x_refsource_CONFIRMx_transferred
• [dev] 20170927 [SECURITY] CVE-2017-12621 Apache Commons Jelly connects to URL with custom doctype definitions. (opens in a new tab)mailing-listx_refsource_MLISTx_transferred
• 101052 (opens in a new tab)vdb-entryx_refsource_BIDx_transferred
• 1039444 (opens in a new tab)vdb-entryx_refsource_SECTRACKx_transferred

Sources

The same CVE in the primary databases and aggregators, to check against.

• CVE.org record (opens in a new tab)
• CVE List JSON (GitHub) (opens in a new tab)
• NVD (opens in a new tab)
• FIRST EPSS (opens in a new tab)
• OSV.dev (opens in a new tab)
• GitHub Advisory GHSA-6g33-82gc-3pw5 (opens in a new tab)
• CIRCL Vulnerability-Lookup (opens in a new tab)

Badge for a README or a ticket

[![CVE-2017-12621](https://trackcve.app/badge/CVE-2017-12621.svg)](https://trackcve.app/cve/CVE-2017-12621)

Record last updated 16 Sept 2024, 16:14 UTC.