Security context
What an agent needs to avoid regressing past fixes and find the next vuln in this repo.
zendframework/zend-mail
master @ 0de63da
2
Fixes
1
CVEs
CRITICAL
Peak severity
Highlights
Command Injection: 1 prior fix. Scrutinize any change in this area.
Zend\Mail\Transport\Sendmail: most-fixed (1 issue). 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.
Command Injection: Inadequate escaping of sender addresses allows remote attackers to inject command-line parameters into the system mail transport, leading to arbitrary code execution. Developers must ensure that all command-line arguments are properly escaped prior to being passed to execution sinks.
Remote Code Execution: Attackers can bypass initial escaping mechanisms by using backslash-escaped double quotes inside email headers, which are processed unsafely by the sendmail transport wrapper. Strict validation of header fields against complex characters is required.