How severe is CVE-2025-26240?

CVE-2025-26240 has a CVSS 3.x base score of 8.4, rated high severity. It is exploitable over local access with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.

Is CVE-2025-26240 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (31st percentile), an estimate of the probability of exploitation in the next 30 days.

How do I fix CVE-2025-26240?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.

Does CVE-2025-26240 have an EU (EUVD) identifier?

Yes. CVE-2025-26240 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2025-210273.

When was CVE-2025-26240 published?

CVE-2025-26240 was published on 2026-06-17 and last updated on 2026-06-22.

CVE-2025-26240

CVE-2025-26240 is a high-severity vulnerability with a CVSS 3.x base score of 8.4. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-120.

Key facts

Severity: High (CVSS 3.x base score 8.4)
EPSS exploit prediction: 0% (31st percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2025-210273
Weakness: CWE-120
Published: 2026-06-17
Last modified: 2026-06-22

Description

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.

Frequently asked questions

What is CVE-2025-26240?: 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 severe is CVE-2025-26240?: CVE-2025-26240 has a CVSS 3.x base score of 8.4, rated high severity. It is exploitable over local access with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.
Is CVE-2025-26240 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (31st percentile), an estimate of the probability of exploitation in the next 30 days.
How do I fix CVE-2025-26240?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.
Does CVE-2025-26240 have an EU (EUVD) identifier?: Yes. CVE-2025-26240 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2025-210273.
When was CVE-2025-26240 published?: CVE-2025-26240 was published on 2026-06-17 and last updated on 2026-06-22.

References

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