MongoDB Server's server-side JavaScript support · Use-after-free Weakness
Source GCVE Database
Not known to be exploited · CVSS 7.1 High · fixed in 8.3.16 : patch MongoDB Server soon.
Data as of 10 Nov 2026, 22:37 UTC
Thin evidence
One scorer or none| CNA (mongodb) | CVSS 4.0 | 7.1 |
|---|---|---|
| CNA (mongodb) | CVSS 3.1 | 7.1 |
- Patch
- Available – fixed in 8.3.16, 8.0.37, 7.0.48
CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:N/VA:L/SC:N/SI:N/SA:NExploitation evidence
Disclosed: evidence found.
CVE published 10 Nov 2026
Detectable: no evidence on record.
No public nuclei template indexed
Weaponized: no evidence on record.
No public exploit code indexed in Metasploit or Exploit-DB
Exploited in the wildExploited: no evidence on record.
Not in CISA KEV and no source reports exploitation
Observed by OffSeq MirageSeen by Mirage: no evidence on record.
No attack traffic recorded by OffSeq Mirage sensors
A missing step is not evidence of safety. Sources: cve.org (opens in a new tab), the Metasploit, Exploit-DB and nuclei-templates index as of 10 Nov 2026.
What to do
Upgrade MongoDB Server to 8.3.16, 8.0.37 or 7.0.48.
Affected software
| Product | Affected | Fixed in |
|---|---|---|
| MongoDBMongoDB Server | Affected
| Fixed in
|
| MongoDBMongoDB Server | Affected
| Fixed in
|
| MongoDBMongoDB Server | Affected
| Fixed in
|
AI-suggested
If you cannot patch yet, restrict authenticated access to trusted users only and monitor for unusual aggregation requests.
Description
A use-after-free vulnerability exists in MongoDB Server's server-side JavaScript support for aggregation. An authenticated user with minimal or no roles can exploit this by submitting a crafted aggregation request, potentially causing the server to return stale memory contents. This may expose adjacent process memory data and could impact server availability.