EUVD-2026-56862
GHSA-4jx5-7652-w3ch
Severity by source
CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:L/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
Network-reachable, low-complexity crash requires only a valid credential (PR:L); full process termination warrants A:H, not A:L.
Primary rating from Vendor (mongodb).
CVSS VectorVendor: mongodb
CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:L/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
Lifecycle Timeline
3DescriptionCVE.org
An issue in MongoDB Server could allow an authenticated user, including one with no assigned privileges, to cause the server process to terminate unexpectedly by submitting a specially formed aggregation command. This could result in a denial of service.
AnalysisAI
MongoDB Server 8.3.0 through 8.3.7 can be crashed by any authenticated user - including accounts with zero assigned privileges - by submitting a specially crafted aggregation command. The root cause is a reachable assertion (CWE-617) that, when triggered, causes the mongod process to terminate unexpectedly, resulting in a denial of service for all connected clients. …
Unlock full vulnerability intelligence
- Risk assessment & exploitation conditions
- Attack chain visualization
- Remediation with exact patch versions
- Threat intelligence from 22 sources
- Personal watchlist & email alerts
Free forever · No credit card required
Attack ChainAIDerived
Hypothetical attack flow derived from CVE metadata
Vulnerability AssessmentAI
| Exploitation | The attacker must possess any valid MongoDB credential - the description explicitly states that a user 'with no assigned privileges' is sufficient, so the bar is authentication alone (PR:L per CVSS vector), not any specific role or permission. … Additional conditions and limiting factors are described in the full assessment. |
| Risk Assessment | The CVSS 4.0 vector (AV:N/AC:L/AT:N/PR:L/UI:N/VA:L) scores 5.3, placing this in the medium range. … Full risk analysis with EPSS, KEV, and SSVC signal comparison available after sign-in. |
| Exploit Scenario | An attacker who has obtained any valid MongoDB credential - for example, through credential stuffing, a leaked connection string in source code, or a shared low-privilege service account - connects to the MongoDB instance over the network. They submit a specially constructed aggregation pipeline designed to trigger the reachable assertion within the aggregation execution engine. … |
| Remediation | Upgrade MongoDB Server to version 8.3.8 or later, which contains the vendor-released patch for this vulnerability. … Detailed patch versions, workarounds, and compensating controls in full report. |
Threat intelligence, references, and detailed analysis are available after sign-in.
More in Mongodb Server
View allCredential exposure in MongoDB Server's replica-set/sharded-cluster internal authentication allows an adjacent-network a
Out-of-bounds memory write in MongoDB Server's time-series collection feature enables arbitrary code execution by authen
MongoDB Server sharded clusters are vulnerable to use-after-free memory corruption when authenticated users with read pe
Remote unauthenticated denial-of-service in MongoDB Server's BSON validation layer allows attackers to crash the mongod
Unauthenticated denial of service in MongoDB Server's aggregation framework allows remote attackers to crash the mongos
Pre-authentication denial-of-service in MongoDB Server allows unauthenticated remote clients to crash the database proce
Authenticated users can crash MongoDB Server by chaining specific server-side JavaScript operations ($_internalJsEmit or
Use-after-free in MongoDB Server's timeseries bucket lifecycle handling allows an authenticated user with write-level pr
Use-after-free memory corruption in MongoDB Server's $graphLookup aggregation stage allows an authenticated high-privile
Memory disclosure and denial-of-service in MongoDB Server allows any authenticated user with aggregate command privilege
Queryable Encryption maintenance operations in MongoDB Server permit an authenticated low-privileged database user to ca
Authorization bypass in MongoDB Server allows an authenticated user holding only a limited database-scoped role to issue
Same weakness CWE-617 – Reachable Assertion
View allSame technique Denial Of Service
View allShare
External POC / Exploit Code
Leaving vuln.today