CVE-2024-56140
MEDIUMDescription
Astro is a web framework for content-driven websites. In affected versions a bug in Astro’s CSRF-protection middleware allows requests to bypass CSRF checks. When the `security.checkOrigin` configuration option is set to `true`, Astro middleware will perform a CSRF check. However, a vulnerability exists that can bypass this security. A semicolon-delimited parameter is allowed after the type in `Content-Type`. Web browsers will treat a `Content-Type` such as `application/x-www-form-urlencoded; abc` as a `simple request` and will not perform preflight validation. In this case, CSRF is not blocked as expected. Additionally, the `Content-Type` header is not required for a request. This issue has been addressed in version 4.16.17 and all users are advised to upgrade. There are no known workarounds for this vulnerability.
How to fix
Remediation is compiled from vendor and distribution security advisories. Always confirm against the linked source for your exact version and platform.
CVSS v3 Vector
Exploitability
Impact
CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:L/I:H/A:N
Exploit Intelligence
Low risk: more likely to be exploited than 12% of all known CVEs.
References
Related Vulnerabilities
Other CWE-352 (Cross-Site Request Forgery) vulnerabilities, ordered by exploit likelihood. View all
| CVE | Severity | CVSS | EPSS | Exploited | Fix |
|---|---|---|---|---|---|
| CVE-2016-6277 | High | 8.8 | 100% | KEV | - |
| CVE-2014-0054 | Medium | 6.8 | 91% | - | Fix |
| CVE-2013-6429 | Medium | 6.8 | 90% | - | Fix |
| CVE-2022-41622 | High | 8.8 | 88% | - | - |
| CVE-2018-7700 | High | 8.8 | 75% | - | - |
| CVE-2015-2295 | Medium | 6.8 | 66% | - | - |
Embed a live status badge for CVE-2024-56140
Markdown
[](https://tridentstack.com/cve/CVE-2024-56140)HTML
<a href="https://tridentstack.com/cve/CVE-2024-56140"><img src="https://tridentstack.com/cve/badge/CVE-2024-56140.svg" alt="CVE-2024-56140"></a>Find and fix vulnerabilities across your fleet
TridentStack Control continuously scans your Windows, macOS, and Linux fleet for known vulnerabilities, prioritizes them by severity and active exploitation, and patches them automatically.
Start freeThis product uses NVD data but is not endorsed or certified by the NVD. EPSS scores courtesy of FIRST.org (https://www.first.org/epss). Source: CISA KEV Catalog. Data as of 2025-11-25.