How severe is CVE-2026-11440?

CVE-2026-11440 has a CVSS 3.x base score of 6.3, rated medium severity. It is exploitable over network with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is low, integrity low, and availability low.

Is CVE-2026-11440 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (12th percentile), an estimate of the probability of exploitation in the next 30 days.

How do I fix CVE-2026-11440?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.

Does CVE-2026-11440 have an EU (EUVD) identifier?

Yes. CVE-2026-11440 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-34975.

When was CVE-2026-11440 published?

CVE-2026-11440 was published on 2026-06-06 and last updated on 2026-06-17.

CVE-2026-11440

CVE-2026-11440 is a medium-severity vulnerability with a CVSS 3.x base score of 6.3. 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-266.

Key facts

Severity: Medium (CVSS 3.x base score 6.3)
CVSS v2: 6.5
CVSS v4: 5.3
EPSS exploit prediction: 0% (12th percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2026-34975
Weakness: CWE-266
Published: 2026-06-06
Last modified: 2026-06-17

Description

A vulnerability was determined in theonedev onedev up to 15.0.5. This affects an unknown part of the file /repositories/{projectId}/default-branch of the component REST API. This manipulation of the argument project.defaultBranch causes improper authorization. It is possible to initiate the attack remotely. Upgrading to version 15.0.6 is able to mitigate this issue. Upgrading the affected component is advised.

Frequently asked questions

What is CVE-2026-11440?: A vulnerability was determined in theonedev onedev up to 15.0.5. This affects an unknown part of the file /repositories/{projectId}/default-branch of the component REST API. This manipulation of the argument project.defaultBranch causes improper authorization. It is possible to initiate the attack remotely. Upgrading to version 15.0.6 is able to mitigate this issue. Upgrading the affected component is advised.
How severe is CVE-2026-11440?: CVE-2026-11440 has a CVSS 3.x base score of 6.3, rated medium severity. It is exploitable over network with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is low, integrity low, and availability low.
Is CVE-2026-11440 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (12th percentile), an estimate of the probability of exploitation in the next 30 days.
How do I fix CVE-2026-11440?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
Does CVE-2026-11440 have an EU (EUVD) identifier?: Yes. CVE-2026-11440 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-34975.
When was CVE-2026-11440 published?: CVE-2026-11440 was published on 2026-06-06 and last updated on 2026-06-17.

References

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