What is argument injection?
Argument injection is a type of attack where specifically crafted inputs cause unexpected behavior in software, often leading to security vulnerabilities.
Azərbaycanca: Argument injection hücumu, xüsusi hazırlanmış girişlərin proqram təminatında gözlənilməz davranışa səbəb olması ilə nəticələnən bir təhlükəsizlik zəifliyidir.
How it works
In such attacks, an attacker sends specially crafted inputs to a program, causing it to exhibit unexpected behavior. Vulnerabilities have been found in software such as Apache Allura, PDF::WebKit, GitPython, and rsync.
Defense checklist5
- 01
Update software to the latest versions (e.g., Apache Allura 1.19.1 or higher).
- 02
Implement input validation and sanitization mechanisms.
- 03
Perform input validation to prevent specially crafted inputs.
- 04
Regularly monitor and apply security updates.
- 05
Conduct security audits and testing.
Real-world evidence
CVE-2026-73240 (Apache Allura), CVE-2026-16770 (PDF::WebKit), CVE-2026-73621 (GitPython), and CVE-2026-53790 (rsync) are real examples of argument injection attacks.
Sources
- CVE-2026-73240: Specifically crafted inputs may lead to git argument injection in Apache Allura. This issnvd
- CVE-2026-16770: PDF::WebKit versions through 1.2 for Perl allow argument injection into wkhtmltopdf via menvd
- CVE-2026-73621: GitPython before 3.1.56 contains an argument injection vulnerability in the Commit.count()nvd
- CVE-2026-53790: rsync before 3.5.0 contains multiple command and argument injection vulnerabilities that anvd
Other attack types
See also6
This guide is AI-written from the real incident sources skopnix collected — the examples above are drawn from those cited items, nothing is invented.