TCPDF version <=6.6.5 is vulnerable to ReDoS (Regular Expression Denial of Service) if…
Priority MEDIUM 42CWE-1333Published · Updated
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- None
- Attack complexity
- Low
- Impact type
- Denial of service
- Confidentiality · integrity · availability
- None · None · High
- Fix status
- Fixed
Attack profile from CVSS 3.1 · CISA ADP. Fix status from CNA and GitHub. Impact type from CWE-1333.
Summary
TCPDF version <=6.6.5 is vulnerable to ReDoS (Regular Expression Denial of Service) if parsing an untrusted HTML page with a crafted color.
Why it matters now
Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.01325 71st percentileScored 2026-11-07
Public exploit Yes 1 exploit referenceTagged by NVD
Fix Fixed tecnickcom/tcpdf (Packagist): 6.7.5
SSVC decision points
CISA ADP · SSVC 2.0.3
- Exploitation
- None
- Automatable
- Yes
- Technical impact
- Partial
The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| — | — | all versions | — | No fix listed | CNA |
| — | tecnickcom/tcpdf (Packagist) | before 6.7.5 | 6.7.5 | Patch available | GHSA-mx3p-fhpw-x6rv |
- — Vendor— Affected all versions Fixed in — No fix listed CNA
- tecnickcom/tcpdf (Packagist) Vendor— Affected before 6.7.5 Fixed in 6.7.5 Patch available GHSA-mx3p-fhpw-x6rv
CPE configurations NVD · 2
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:a:tcpdf_project:tcpdf:*:*:*:*:*:*:*:* | up to 6.7.4 | Vulnerable | Tcpdf Project |
| cpe:2.3:o:fedoraproject:fedora:40:*:*:*:*:*:*:* | 40 | Vulnerable | Fedoraproject |
- cpe:2.3:a:tcpdf_project:tcpdf:*:*:*:*:*:*:*:* Versions up to 6.7.4 Vulnerable ·Tcpdf Project
- cpe:2.3:o:fedoraproject:fedora:40:*:*:*:*:*:*:* Versions 40 Vulnerable ·Fedoraproject
Remediation
- Fix · GHSA-mx3p-fhpw-x6rv tecnickcom/tcpdf (Packagist) Fixed in 6.7.5 Advisory →
Vendor assessments
Timeline
- 2026-10-02 Threatist record created from CVE-2024-22640
- 2026-10-03 Alias added: GHSA-mx3p-fhpw-x6rv
References
Other 5
- https://github.com/tecnickcom/TCPDF
- https://github.com/tecnickcom/TCPDF/commit/05f3a28f4a7905019469e040cf77e53d6aa7f679
- https://lists.debian.org/debian-lts-announce/2025/06/msg00004.html
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/LIB3R2WB7XPW2I4PGVMZ3VLFLRHOK4RB
- https://lists.fedoraproject.org/archives/list/[email protected]/message/LIB3R2WB7XPW2I4PGVMZ3VLFLRHOK4RB
Sources
- CVE-2024-22640 · CVE Program
- CVE-2024-22640 · NVD
- FIRST EPSS
- GHSA-mx3p-fhpw-x6rv · GitHub Advisory Database · CC BY 4.0
- CVE-2024-22640 · Red Hat security data · CC BY 4.0
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences