CVE-2024-56521 TCPDF missing certificate validation
TCPDF disables SSL certificate verification when using libcurl, allowing attackers to bypass TLS security checks and potentially intercept or modify data.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- Available
What is CVE-2024-56521?
CVE-2024-56521 is a critical vulnerability in tecnick tcpdf, published on 27 Dec 2024. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
An issue was discovered in TCPDF before 6.8.0. If libcurl is used, CURLOPT_SSL_VERIFYHOST and CURLOPT_SSL_VERIFYPEER are set unsafely.
Weakness: CWE-295
Which versions are affected by CVE-2024-56521?
2 open source packages ship an affected version, including tecnickcom/tcpdf. It affects 1 product.
| Package | Affected | Fixed in |
|---|---|---|
tecnickcom/tcpdf Packagist | All versions | 6.8.0 |
tecnickcom/tcpdf Packagist | All versions | 6.8.0 |
Products include Tcpdf Project Tcpdf.
How do I fix CVE-2024-56521?
Upgrade tecnickcom/tcpdf to 6.8.0 or later.
Is CVE-2024-56521 being exploited?
There is no known exploitation of CVE-2024-56521 in the wild and no public exploit code.
Other vulnerabilities in tecnick tcpdf
Sources
Also known as DEBIAN-CVE-2024-56521, GHSA-9mgx-552f-59p6, UBUNTU-CVE-2024-56521.