What’s Vulnerable › Vulnerabilities

CVE-2024-56521

• Severity: critical (CVSS 9.8 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.8% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2024-12-27 · updated 2026-06-17
• Weakness: CWE-295

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.

Affected products

• tecnick tcpdf: before 6.8.0 — fixed in 6.8.0

How to fix

Upgrade to a fixed version: tecnick tcpdf 6.8.0. Check the vendor advisory for mitigations.

References

• https://github.com/tecnickcom/TCPDF/commit/aab43ab0a824e956276141a28a24c7c0be20f554
• https://github.com/tecnickcom/TCPDF/compare/6.7.8...6.8.0
• https://tcpdf.org

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