CVE-2026-4148

HIGHNVD 8.88.8—

8.8

A use-after-free vulnerability can be triggered in sharded clusters by an authenticated user with the read role who issues a specially crafted $lookup or $graphLookup aggregation pipeline.

CVSS v3: 8.8
EG Score: 8.8(medium)
EPSS: 21.6%
KEV: Not listed

Published

March 17, 2026

Last Modified

April 10, 2026

References (1)

cna@mongodbhttps://jira.mongodb.org/browse/SERVER-119319

Data Freshness Timeline

(refreshed 9× in last 7d / 14× in last 30d)

Every time one of our enrichment pipelines (NVD, MITRE cvelistV5, EPSS, CISA KEV, GHSA, OSV, vendor advisories) ran against this CVE. Most recent first.

2026-05-31 00:16 UTCepss_batch
2026-05-31 00:16 UTCepss_batch
2026-05-29 13:44 UTCepss_batch
2026-05-29 13:44 UTCepss_batch
2026-05-28 13:44 UTCepss_batch
2026-05-28 13:44 UTCepss_batch
2026-05-27 13:40 UTCepss_batch
2026-05-27 13:40 UTCepss_batch
2026-05-26 07:18 UTCepss_batch
2026-05-21 22:43 UTCepss_batch
2026-05-20 22:38 UTCepss_batch
2026-05-20 21:02 UTCEG score recompute
2026-05-20 21:02 UTCGHSA enrichment
2026-05-20 11:22 UTCepss_batch

Frequently asked(5)

What is CVE-2026-4148?

CVE-2026-4148 is a high vulnerability published on March 17, 2026. A use-after-free vulnerability can be triggered in sharded clusters by an authenticated user with the read role who issues a specially crafted $lookup or $graphLookup aggregation pipeline.

When was CVE-2026-4148 disclosed?

CVE-2026-4148 was first published in the National Vulnerability Database on March 17, 2026, with the most recent update on April 10, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.

Is CVE-2026-4148 actively exploited?

CVE-2026-4148 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 21.6% percentile likelihood of exploitation in the next 30 days — higher percentiles indicate greater predicted risk.

What is the CVSS score of CVE-2026-4148?

CVE-2026-4148 has a CVSS v3 base score of 8.8 (NVD).

How do I remediate CVE-2026-4148?

Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-4148, EchelonGraph cross-links them in the Vendor Advisories panel below — those typically contain the canonical remediation steps, fixed version numbers, and any vendor-specific mitigations.

Dependency Blast Radius

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CVE-2026-4148

📅 Published

🔄 Last Modified

🔗 References (1)