How severe is CVE-2025-66249?

CVE-2025-66249 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-2025-66249 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (47th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2025-66249?

CVE-2025-66249 affects Apache Livy. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2025-66249?

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

Does CVE-2025-66249 have an EU (EUVD) identifier?

Yes. CVE-2025-66249 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2025-208639.

When was CVE-2025-66249 published?

CVE-2025-66249 was published on 2026-03-13 and last updated on 2026-06-17.

CVE-2025-66249

CVE-2025-66249 is a medium-severity vulnerability in Apache Livy 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-22.

Key facts

Severity: Medium (CVSS 3.x base score 6.3)
EPSS exploit prediction: 1% (47th percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2025-208639
Weakness: CWE-22
Affected product: Apache Livy
Published: 2026-03-13
Last modified: 2026-06-17

Description

Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal') vulnerability in Apache Livy. This issue affects Apache Livy: from 0.3.0 before 0.9.0. The vulnerability can only be exploited with non-default Apache Livy Server settings. If the configuration value "livy.file.local-dir-whitelist" is set to a non-default value, the directory checking can be bypassed. Users are recommended to upgrade to version 0.9.0, which fixes the issue.

Frequently asked questions

What is CVE-2025-66249?: Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal') vulnerability in Apache Livy. This issue affects Apache Livy: from 0.3.0 before 0.9.0. The vulnerability can only be exploited with non-default Apache Livy Server settings. If the configuration value "livy.file.local-dir-whitelist" is set to a non-default value, the directory checking can be bypassed. Users are recommended to upgrade to version 0.9.0, which fixes the issue.
How severe is CVE-2025-66249?: CVE-2025-66249 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-2025-66249 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (47th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2025-66249?: CVE-2025-66249 affects Apache Livy. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2025-66249?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
Does CVE-2025-66249 have an EU (EUVD) identifier?: Yes. CVE-2025-66249 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2025-208639.
When was CVE-2025-66249 published?: CVE-2025-66249 was published on 2026-03-13 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:a:apache:livy:*:*:*:*:*:*:*:*

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