CVE-2024-56522

  1. OpenCVE
  2. Vulnerabilities (CVE)
  3. CVE-2024-56522
An issue was discovered in TCPDF before 6.8.0. unserializeTCPDFtag uses != (aka loose comparison) and does not use a constant-time function to compare TCPDF tag hashes.

7.5 /10

CVSS v3 : HIGH

V3 Legend

Vector :

Exploitability : 3.9 / Impact : 3.6

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required NONE

User Interaction NONE

Confidentiality Impact HIGH

Integrity Impact NONE

Availability Impact NONE

Scope UNCHANGED

References
Link Resource
https://github.com/tecnickcom/TCPDF/commit/d54b97cec33f4f1a5ad81119a82085cad93cec89 Patch
https://github.com/tecnickcom/TCPDF/compare/6.7.8...6.8.0 Issue Tracking
https://tcpdf.org Product
https://www.php.net/manual/en/types.comparisons.php Not Applicable
https://lists.debian.org/debian-lts-announce/2025/06/msg00004.html
Configurations

Configuration 1 (hide)

cpe:2.3:a:tcpdf_project:tcpdf:*:*:*:*:*:*:*:*
History

03 Nov 2025, 20:16

Type Values Removed Values Added
References
  • () https://lists.debian.org/debian-lts-announce/2025/06/msg00004.html -

17 Apr 2025, 02:12

Type Values Removed Values Added
References () https://github.com/tecnickcom/TCPDF/commit/d54b97cec33f4f1a5ad81119a82085cad93cec89 - () https://github.com/tecnickcom/TCPDF/commit/d54b97cec33f4f1a5ad81119a82085cad93cec89 - Patch
References () https://github.com/tecnickcom/TCPDF/compare/6.7.8...6.8.0 - () https://github.com/tecnickcom/TCPDF/compare/6.7.8...6.8.0 - Issue Tracking
References () https://tcpdf.org - () https://tcpdf.org - Product
References () https://www.php.net/manual/en/types.comparisons.php - () https://www.php.net/manual/en/types.comparisons.php - Not Applicable
CPE cpe:2.3:a:tcpdf_project:tcpdf:*:*:*:*:*:*:*:*
First Time Tcpdf Project tcpdf
Tcpdf Project

30 Dec 2024, 16:15

Type Values Removed Values Added
CWE CWE-843
Summary
  • (es) Se descubrió un problema en TCPDF antes de 6.8.0. unserializeTCPDFtag usa != (también conocido como comparación flexible) y no usa una función de tiempo constante para comparar hashes de etiquetas TCPDF.
CVSS v2 : unknown
v3 : unknown 		v2 : unknown
v3 : 7.5

27 Dec 2024, 05:15

Type Values Removed Values Added
New CVE
Information

Published : 2024-12-27 05:15

Updated : 2025-11-03 20:16

NVD link : CVE-2024-56522

Mitre link : CVE-2024-56522

CVE.ORG link : CVE-2024-56522

JSON object : View

Products Affected

tcpdf_project

  • tcpdf
CWE
CWE-843

Access of Resource Using Incompatible Type ('Type Confusion')