🛡️ CVE-2025-26240 — pdfkit

🟠 CVSS 8.4 — High ✅ No Known Exploit CWE-120 NVD
8.4
CVSS Score
0 Low4 Medium7 High9 Critical10

Description

pdfkit: Path traversal in from_string

In JazzCore python-pdfkit 1.0.0, the from_string method enables the execution of JavaScript code within the context of the server application and the exfiltration of local files.

How this vulnerability can be exploited

This issue can be reached with local access to the system, attack complexity is low, an attacker needs no privileges on the target. No user interaction is required. The scope is unchanged, so the impact stays within the vulnerable component. Rated impact: confidentiality high, integrity high, availability high.

Weakness class

CVE-2025-26240 is classified as CWE-120: Classic Buffer Overflow. Input is copied into a fixed-size buffer without a length check, overwriting memory past the end of it.

Affected software

CVE-2025-26240 is recorded against 2 packages.

  • pdfkit
  • unknown

Timeline and source

Published on 17 June 2026 and last revised on 13 July 2026. No public exploit is currently recorded for this entry. Record sourced from NVD.

References

nvd.nist.gov (Advisory)
github.com (Package)
habuon.github.io (Web)
www.csirt.gov.sk (Web)

Details

Severity HIGH
CVSS Score 8.4
CVSS Vector CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
CWE CWE-120
Public Exploit ✅ No
Source NVD
Published 2026-06-17
Updated 2026-08-12
Modified 2026-07-13
Fix URL N/A

Affected Packages

Software From version Fixed in
pdfkit — —
unknown — —

Similar Threats

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