CVE-2026-4148 is a high-severity use-after-free vulnerability (CWE-416) affecting sharded database clusters, where an authenticated user with read privileges can trigger it using specially crafted $lookup or $graphLookup aggregation pipelines. With a CVSS score of 8.8 (High), this vulnerability has a network attack vector and low attack complexity, potentially leading to high impact on confidentiality, integrity, and availability. Although not listed in KEV and lacking public exploit code on platforms like Metasploit or ExploitDB, it has garnered some community discussion.
| Vendor | Product | Version(s) | CPE |
|---|---|---|---|
>= 7.0.0, < 7.0.31CPE matchmatch criteria | cpe:2.3:a:mongodb:mongodb:*:*:*:*:-:*:*:* | ||
>= 8.0.0, < 8.0.20CPE matchmatch criteria | cpe:2.3:a:mongodb:mongodb:*:*:*:*:-:*:*:* | ||
>= 8.2.0, < 8.2.6CPE matchmatch criteria | cpe:2.3:a:mongodb:mongodb:*:*:*:*:-:*:*:* | ||
8.3.0CPE matchmatch criteria | cpe:2.3:a:mongodb:mongodb:8.3.0:alpha0:*:*:-:*:*:* | ||
8.3.0CPE matchmatch criteria | cpe:2.3:a:mongodb:mongodb:8.3.0:alpha1:*:*:-:*:*:* |
CVSS version used by this source: 4.0
CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.3 Bluesky, 0.1 Mastodon, and 0.2 GitHub mentions.
No media coverage found for this CVE.
The average CVE in this peer group has 0.1 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.
Remediation records are not available for this CVE.