EUVD-2026-76165
GHSA-fjcj-f5cf-235q
Severity by source
CVSS:4.0/AV:N/AC:L/AT:P/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
AC:H reflects race condition timing requirement; PR:L for ordinary read-write credentials; S:U as impact is confined to the MongoDB server process.
Primary rating from Vendor (mongodb).
CVSS VectorVendor: mongodb
Lifecycle Timeline
3DescriptionCVE.org
A race condition in the document value layer of MongoDB Server can allow concurrent server threads to operate on the same internal memory without synchronization, leading to memory corruption. An authenticated user holding ordinary read-write privileges on a database may be able to trigger this condition over the normal client protocol, resulting in server termination and potential corruption of process memory with user-influenced content. Successful use of this issue may impact the confidentiality, integrity, and availability of the affected server process.
AnalysisAI
Race condition in MongoDB Server's document value layer permits an authenticated user with ordinary read-write database privileges to trigger unsynchronized concurrent thread access to shared internal memory over the standard client protocol, leading to server termination and potential corruption of process memory with user-influenced content. The flaw affects confidentiality, integrity, and availability of the MongoDB server process - worst-case outcomes range from a reliable denial-of-service crash loop to a write primitive enabling memory disclosure or data manipulation. …
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Attack ChainAIDerived
Hypothetical attack flow derived from CVE metadata
Vulnerability AssessmentAI
| Exploitation | Exploitation requires a valid MongoDB database account with at minimum read-write privileges on any database - the CVSS 4.0 PR:L metric confirms authentication is mandatory and unauthenticated exploitation is not possible. … Additional conditions and limiting factors are described in the full assessment. |
| Risk Assessment | The CVSS 4.0 vector (AV:N/AC:L/AT:P/PR:L/UI:N with VC:H/VI:H/VA:H) yields a score of 7.7. … Full risk analysis with EPSS, KEV, and SSVC signal comparison available after sign-in. |
| Exploit Scenario | Full exploit scenario with step-by-step reproduction available after sign-in. |
| Remediation | No vendor-released patch has been identified at time of analysis - the issue is tracked upstream at https://jira.mongodb.org/browse/SERVER-134063 with no published fix version. … Detailed patch versions, workarounds, and compensating controls in full report. |
Recommended ActionAI
Within 24 hours, audit MongoDB deployments to identify authenticated users with write privileges and document current access patterns. …
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Same weakness CWE-362 – Race Condition
View allSame technique Buffer Overflow
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External POC / Exploit Code
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