CVE-2026-120684
Medium · 6.5CVSS
6.5
EPSS
0.3%
Published
Nov 3, 2026
CISA due date
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The record
A memory-initialization flaw in the legacy GridFS file handling of the MongoDB C Driver can cause uninitialized process memory to be treated as valid file content and stored on the server. A database user holding ordinary write access to a shared storage area can arrange conditions under which an application later appends to such a file and writes that memory into records the same user is permitted to read, which may result in unintended disclosure of sensitive information from the application's process, including credentials.
Affected packages
| Ecosystem | Package | Introduced | Fixed |
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Related vulnerabilities
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- CVE-2026-121143 Uninitialized resource in GPU in Google Chrome prior to 157.0.8103.38 allowed a remote… CWE-908
- CVE-2026-121095 Uninitialized resource in WebGL in Google Chrome prior to 157.0.8103.38 allowed a remote… CWE-908
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