Security context
What an agent needs to avoid regressing past fixes and find the next vuln in this repo.
symfony/dependency-injection
8.2 @ 70dc892
7
Fixes
0
CVEs
HIGH
Peak severity
Highlights
Denial of Service: 2 prior fixes. Scrutinize any change in this area.
Dumper/XmlDumper.php: most-fixed (2 issues). Treat as high-risk during review.
2 high-severity fixes in this history; regressions here are high-impact.
Recurring patterns
The bug types that recur here, drawn from past fixes, not open vulnerabilities.
XML External Entity (XXE): The XML loader was vulnerable to XXE attacks when parsing documents with DOCTYPE definitions. Attackers who control or influence XML container configuration files can exploit this to achieve arbitrary local file disclosure or SSRF.
XML Injection: Improper escaping during container dumping allowed injection of arbitrary XML tags. Historically, using unsafe raw string concatenation or directly passing parameters to createElement allowed untrusted service parameters to corrupt or hijack the dumped container structure.
Server-Side Request Forgery: Unrestricted schema resolution in the XML loader permitted reading arbitrary local or remote URIs via file_get_contents. Restricting operations to expected schemes (like phar://) is required to prevent SSRF and arbitrary file inclusion.