How severe is CVE-2024-26139?

CVE-2024-26139 has a CVSS 3.x base score of 8.3, rated high severity. It is exploitable over network with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability low.

Is CVE-2024-26139 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (32nd percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2024-26139?

CVE-2024-26139 affects Citeum Opencti. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2024-26139?

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-2024-26139 have an EU (EUVD) identifier?

Yes. CVE-2024-26139 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2024-23427.

When was CVE-2024-26139 published?

CVE-2024-26139 was published on 2024-05-23 and last updated on 2026-06-17.

CVE-2024-26139

CVE-2024-26139 is a high-severity vulnerability in Citeum Opencti with a CVSS 3.x base score of 8.3. 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-284.

Key facts

Severity: High (CVSS 3.x base score 8.3)
EPSS exploit prediction: 0% (32nd percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2024-23427
Weakness: CWE-284
Affected product: Citeum Opencti
Published: 2024-05-23
Last modified: 2026-06-17

Description

OpenCTI is an open source platform allowing organizations to manage their cyber threat intelligence knowledge and observables. Due to lack of certain security controls on the profile edit functionality, an authenticated attacker with low privileges can gain administrative privileges on the web application.

Frequently asked questions

What is CVE-2024-26139?: OpenCTI is an open source platform allowing organizations to manage their cyber threat intelligence knowledge and observables. Due to lack of certain security controls on the profile edit functionality, an authenticated attacker with low privileges can gain administrative privileges on the web application.
How severe is CVE-2024-26139?: CVE-2024-26139 has a CVSS 3.x base score of 8.3, rated high severity. It is exploitable over network with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability low.
Is CVE-2024-26139 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (32nd percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2024-26139?: CVE-2024-26139 affects Citeum Opencti. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2024-26139?: 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-2024-26139 have an EU (EUVD) identifier?: Yes. CVE-2024-26139 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2024-23427.
When was CVE-2024-26139 published?: CVE-2024-26139 was published on 2024-05-23 and last updated on 2026-06-17.

References

https://github.com/OpenCTI-Platform/opencti/security/advisories/GHSA-qx4j-f4f2-vjw9

Affected products (1)

cpe:2.3:a:citeum:opencti:*:*:*:*:*:*:*:*

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