CVE-2024-56521
TCPDF missing certificate validation
9.8
CRITICAL
CVSS 3.1
EPSS 0.25%
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.
How to fix CVE-2024-56521
To remediate CVE-2024-56521, upgrade the affected package to a fixed version below.
- Debian/tcpdf—no fix listed
- Packagist/tecnickcom/tcpdf—upgrade to 6.8.0 or later
Is CVE-2024-56521 being exploited?
Low — EPSS is 0.3%, meaning exploitation activity has not been observed at scale.
Affected packages (2)
- from 0
- from 0, < 6.8.0
CVSS scores
| Source | Version | Severity | Vector |
|---|---|---|---|
| osv | CVSS 4.0 | — | CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:N/VI:H/VA:N/SC:N/SI:N/SA:N |
| osv | CVSS 3.1 | CRITICAL9.8 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H |