Vulnerability details
CVE-2026-11933
MongoDB MongoDB
Post-authentication use-after-free in server-side JavaScript BSON-to-array conversion
CVSS 4.0
8.7High
Official description
A use-after-free vulnerability exists in MongoDB Server's server-side JavaScript engine when converting BSON documents to JavaScript arrays. An authenticated user with read privileges who is able to run server-side JavaScript (for example, via $where or $function) can cause the server to access memory that has already been freed. This may result in disclosure of information from the mongod process memory or a denial of service through a server crash.
CVSS scores
| Score | Version | Source | Vector |
|---|---|---|---|
| 8.7High | 4.0 | CVEProject cvelistV5 (CNA) (mongodb) | 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 |
| 8.8High | 3.1 | CVEProject cvelistV5 (CNA) (mongodb) | CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H |
Affected products
| Vendor | Product | Versions | Source |
|---|---|---|---|
| MongoDB | MongoDB | 4.4.0 ≤ v ≤ 4.4.30 | CVEProject cvelistV5 (CNA) |
| MongoDB | MongoDB | 5.0 ≤ v ≤ 5.0.33 | CVEProject cvelistV5 (CNA) |
| MongoDB | MongoDB | 6.0 ≤ v ≤ 6.0.28 | CVEProject cvelistV5 (CNA) |
| MongoDB | MongoDB | 7.0.0 ≤ v ≤ 7.0.36 | CVEProject cvelistV5 (CNA) |
| MongoDB | MongoDB | 8.0.0 ≤ v ≤ 8.0.25 | CVEProject cvelistV5 (CNA) |
| MongoDB | MongoDB | 8.2.0 ≤ v ≤ 8.2.10 | CVEProject cvelistV5 (CNA) |
| MongoDB | MongoDB | 8.3.0 ≤ v ≤ 8.3.3 | CVEProject cvelistV5 (CNA) |
References and advisories
1
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Details
- Published
- 2026-06-12
- Last updated
- 2026-06-13
- State
- Published
- Assigner (CNA)
- mongodb
Exploit prediction (EPSS)
0.38%
Probability of exploitation in 30 days
32.6%
Percentile (among all CVEs)
SSVC assessment (CISA)
- Automatable
- No
- Exploitation
- None
- Technical impact
- Total
Weaknesses (CWE)
- CWE-787Out-of-bounds Write