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CWE-776

Improper Restriction of Recursive Entity References in DTDs ('XML Entity Expansion')

The product uses XML documents and allows their structure to be defined with a Document Type Definition (DTD), but it does not properly control the number of recursive definitions of entities.

86
Assigned CVEs
189th
Commonality Rank
7.0
Avg CVSS
0.0%
In CISA KEV

Volume and Severity of Assigned CVEs Over Time

Volume of CVEs assigned to CWE-776 and their average CVSS base score over time.

Volume of CVEsAvg CVSS Base Score
First CVE
Dec 31, 2003
22 years ago
Most Recent CVE
Jul 22, 2026
1 day ago

Top CVEs Assigned This CWE

Top CVEs that have been assigned this CWE. A single CVE can have multiple CWE assignments, though many have just one.

86 CVEs · Highest risk first

CVEPublishedCVSSRiskKEVExploit
CVE-2009-1955HIGH
The expat XML parser in the apr_xml_* interface in xml/apr_xml.c in Apache APR-util before 1.3.7, as used in the mod_dav and mod_dav_svn modules in the Apache HTTP Server, allows r
Jun 8, 20097.565NOYES
CVE-2019-11253HIGH
Improper input validation in the Kubernetes API server in versions v1.0-1.12 and versions prior to v1.13.12, v1.14.8, v1.15.5, and v1.16.2 allows authorized users to send malicious
Oct 17, 20197.552NOYES
CVE-2017-18640HIGH
The Alias feature in SnakeYAML before 1.26 allows entity expansion during a load operation, a related issue to CVE-2003-1564.
Dec 12, 20197.538NONO
CVE-2026-44020CRITICAL
Docling simplifies document processing by parsing diverse formats and providing integrations with the generative AI ecosystem. From 2.13.0 until 2.74.0, the USPTO patent XML parser
Jun 24, 20269.435NONO
CVE-2026-45304HIGH
Symfony is a PHP framework for web and console applications and a set of reusable PHP components. Prior to 5.4.52, 6.4.40, 7.4.12, and 8.0.12, Symfony\Component\Yaml\Parser resolve
Jul 14, 20267.534NONO
CVE-2026-45133HIGH
Symfony is a PHP framework for web and console applications and a set of reusable PHP components. Prior to 5.4.52, 6.4.40, 7.4.12, and 8.0.12, when the parser is exposed to attacke
Jul 14, 20267.534NONO
CVE-2026-41673HIGH
xmldom is a pure JavaScript W3C standard-based (XML DOM Level 2 Core) `DOMParser` and `XMLSerializer` module. In @xmldom/xmldom prior to versions 0.9.10 and 0.8.13 and xmldom versi
May 7, 20267.532NONO
CVE-2026-12993MEDIUM
A flaw was found in Apicurio Registry. The DocumentBuilderAccessor correctly blocks external DTD and schema access but does not disable DOCTYPE declarations or enable FEATURE_SECUR
Jun 26, 20266.531NONO
CVE-2019-19144CRITICAL
XML External Entity Injection vulnerability in Quantum DXi6702 2.3.0.3 (11449-53631 Build304) devices via rest/Users?action=authenticate.
Aug 1, 20259.831NONO
CVE-2023-38490CRITICAL
Kirby is a content management system. A vulnerability in versions prior to 3.5.8.3, 3.6.6.3, 3.7.5.2, 3.8.4.1, and 3.9.6 only affects Kirby sites that use the `Xml` data handler (e
Jul 27, 202310.031NONO
View all 86 CVEs →

CVE Severity & Scoring

This CWEGlobal (All CVEs)
0.0-0.9
1.0-1.9
2.0-2.9
3.0-3.9
10%
4.0-4.9
16%
19%
5.0-5.9
20%
16%
6.0-6.9
48%
26%
7.0-7.9
11%
8.0-8.9
9%
14%
9.0-10.0
unknown
CVSS Score Range

Exploit Exposure

Exploit activity across CVEs assigned to this CWE, including CVEs that carry other CWE assignments.

CISA KEV
0 CVEs
0.0% of CVEs· Bottom 1%
Metasploit
0 CVEs
0.0% of CVEs· Bottom 1%
Nuclei
1 CVE
1.2% of CVEs· 86th percentile
ExploitDB
1 CVE
1.2% of CVEs· 83rd percentile

Social Chatter

Social posts that mention CVE IDs assigned to this CWE. This is assigned-CVE activity, not mentions of the CWE label itself.

Media Mentions

Media articles that mention CVE IDs assigned to this CWE. This is assigned-CVE coverage, not mentions of the CWE label itself.

Top Affected Vendors

Top Affected Products