High 8.8Published Jan 5, 2026

CVE-2025-66518Apache Kyuubi: Unauthorized directory access due to missing path normalization

Updated under an hour ago (Oct 26, 2026, 11:40 PM ET)

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It affects Apache Software Foundation Apache Kyuubi and 1 other product. Add what you run to find out whether that includes you.

No exploitation reported and no EPSS estimate yet.

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Every CVE for Apache Software Foundation Apache Kyuubi

Exploited in the last 30 days

Any client who can access to Apache Kyuubi Server via Kyuubi frontend protocols can bypass server-side config kyuubi.session.local.dir.allow.list and use local files which are not listed in the config. This issue affects Apache Kyuubi: from 1.6.0 through 1.10.2. Users are recommended to upgrade to version 1.10.3 or upper, which fixes the issue.

CVSS: 8.8 HIGH (v4.0, CNA)CVSS:4.0/AV:N/AC:L/AT:P/PR:L/UI:P/VC:H/VI:H/VA:L/SC:H/SI:H/SA:L
Weakness (CWE): CWE-27
Known exploited: Not in CISA's KEV catalog
EPSS (exploitation in the next 30 days): Not loaded for this CVE
Assigned by: apache
NVD analysis: Analyzed
Record last updated: Jan 5, 2026
First seen by InfoSec Signals: Oct 9, 2026

Affected products

Affected products

Apache Software Foundation Apache Kyuubi apache_software_foundation:apache_kyuubi (from the name)	from 1.6.0 through 1.10.2	CNA record
apache kyuubi apache:kyuubi	from 1.6.0 before 1.10.3	NVD

References

References

https://lists.apache.org/thread/xp460bwbyzdhho34ljd4nchyt2fmhodl	vendor-advisory, mailing-list
http://www.openwall.com/lists/oss-security/2026/01/05/1	mailing-list, third-party-advisory

The CVE record on cve.org NVD's entry

The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.