Home/CVE/TCPDF version <=6.6.5 is vulnerable to ReDoS (Regular Expression Denial of Service) if parsing an untrusted HTML page wi
CVE

CVE-2024-22640

TCPDF version <=6.6.5 is vulnerable to ReDoS (Regular Expression Denial of Service) if parsing an untrusted HTML page wi

TCPDF version <=6.6.5 is vulnerable to ReDoS (Regular Expression Denial of Service) if parsing an untrusted HTML page with a crafted color.

HIGH · CVSS 7.5 EPSS 0.0155
Act now
  • Public exploit or PoC is available
  • SSVC automatable: yes - attacks can be scripted at scale
  • CVSS base score ≥ 7.0
Sigma rules0 YARA rules0
⬡

Weakness Classification

CWE-1333Inefficient Regular Expression Complexity
▤

Affected Products & Versions

2
tcpdf project tcpdf<= 6.7.4
fedoraproject fedoraall versions
▤

Affected Packages

1
Language-ecosystem packages (from OSV) tied to this CVE, with the version that fixes it - the dependency-level detail NVD doesn’t carry.
Packagist tecnickcom/tcpdf MEDIUM fixed in 6.7.5
⚠

Public Exploits & PoCs

1
pocgithub.com · CVE-2024-22640github.com
▣

Scoring & Timeline

7.5
HIGH · CVSS v3.1 · cve@mitre.org
View on NVD
Attack Vector
Network Adjacent Local Physical
Attack Complexity
Low High
Privileges Required
None Low High
User Interaction
None Required
Scope
Unchanged Changed
Confidentiality
None Low High
Integrity
None Low High
Availability
None Low High
Published to NVD19 Apr 2024 · 04:15 PM
CVSS VectorCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
SSVC triage · cisa-vulnrichment
Exploitation
none
Automatable
yes
Technical impact
partial
SSVC asks the questions that actually drive patch urgency: is it being exploited, can attacks be automated, and how total is the impact.
🔗

References & Sources

4
Source URLs (vendor pages, mailing lists, write-ups). Exploit/PoC links are in their own section above to avoid duplication.
https://github.com/tecnickcom/TCPDFProduct
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/LIB3R2WB7XPW2I4PGVMZ3VLFLRHOK4RB/Third Party Advisory
https://lists.debian.org/debian-lts-announce/2025/06/msg00004.html
https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/LIB3R2WB7XPW2I4PGVMZ3VLFLRHOK4RB/
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