Medium 5.3Published Jul 24, 2026

CVE-2026-66006lakeFS Unauthenticated Operator Metadata Overwrite via setup_comm_prefs

Updated under an hour ago (Oct 26, 2026, 3:40 AM ET)

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It affects treeverse lakeFS 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 treeverse lakeFS

Exploited in the last 30 days

lakeFS through 1.83.0, fixed in commit 71a45ee, contains an authentication bypass vulnerability in the /setup_comm_prefs endpoint that allows unauthenticated attackers to overwrite operator metadata including email, name, and company after setup completion. Attackers can POST to this endpoint to modify security update preferences, disable security communications, and trigger falsified telemetry events using the legitimate installation ID.

CVSS: 5.3 MEDIUM (v3.1, CNA)CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N
Weakness (CWE): CWE-306
Known exploited: Not in CISA's KEV catalog
EPSS (exploitation in the next 30 days): Not loaded for this CVE
Assigned by: VulnCheck
NVD analysis: Analyzed
Record last updated: Jul 27, 2026
First seen by InfoSec Signals: Oct 9, 2026

Affected products

Affected products

treeverse lakeFS treeverse:lakefs (from the name)	through 1.83.0; 71a45eeb1639d146d34b8effd7e86d077160ed7c not affected	CNA record
lakefs lakefs lakefs:lakefs	through 1.83.0	NVD

References

https://github.com/treeverse/lakeFS/issues/10465technical-description, exploit, issue-tracking
https://github.com/treeverse/lakeFS/pull/10499issue-tracking, patch
https://github.com/treeverse/lakeFS/commit/71a45eeb1639d146d34b8effd7e86d077160ed7cpatch
https://www.vulncheck.com/advisories/lakefs-unauthenticated-operator-metadata-overwrite-via-setup-comm-prefsthird-party-advisory, patch

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.