CVE-2026-8199— Post-auth memory exhaustion via bitwise match expressions
Possible ATT&CK Techniques 1AI
T1499 · Endpoint Denial of ServiceAffected Version Matrix 4
| Vendor | Product | Version Range | Status |
|---|---|---|---|
| MongoDB, Inc. | MongoDB Server | 7.0< 7.0.34 | affected |
8.0< 8.0.23 | affected | ||
8.2< 8.2.9 | affected | ||
8.3< 8.3.2 | affected |
Get alerts for future matching vulnerabilitiesLog in to subscribe
I. Basic Information for CVE-2026-8199
Vulnerability Information
Have questions about the vulnerability? See if Shenlong's analysis helps!
View Shenlong Deep Dive ↗ Although we use advanced large model technology, its output may still contain inaccurate or outdated information.Shenlong tries to ensure data accuracy, but please verify and judge based on the actual situation.
Vulnerability Title
Post-auth memory exhaustion via bitwise match expressions
Source: NVD (National Vulnerability Database)
Vulnerability Description
An authenticated user can cause excess memory usage via bitwise match expression AST processing of $bitsAllSet, $bitsAnySet, $bitsAllClear, and $bitsAnyClear. This contributes to memory pressure and may lead to availability loss by OOM. This issue impacts MongoDB Server v7.0 versions prior to 7.0.34, v8.0 versions prior to 8.0.23, v8.2 versions prior to 8.2.9 and v8.3 versions prior to 8.3.2.
Source: NVD (National Vulnerability Database)
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Source: NVD (National Vulnerability Database)
Vulnerability Type
CWE-1325
Source: NVD (National Vulnerability Database)
Vulnerability Title
MongoDB Server 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
MongoDB Server是美国MongoDB公司的一套开源的NoSQL数据库。该数据库提供面向集合的存储、动态查询、数据复制及自动故障转移等功能。 MongoDB Server存在安全漏洞，该漏洞源于位匹配表达式AST处理导致内存使用过多，可能导致内存压力并导致可用性损失。以下版本受到影响：7.0.34之前版本、8.0.23之前版本、8.2.9之前版本和8.3.2之前版本。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)
Affected Products
| Vendor | Product | Affected Versions | CPE | Subscribe |
|---|---|---|---|---|
| MongoDB, Inc. | MongoDB Server | 7.0 ~ 7.0.34 | - |
II. Public POCs for CVE-2026-8199
| # | POC Description | Source Link | Shenlong Link |
|---|
AI-Generated POCPremium
No public POC found.
Login to generate AI POCIII. Intelligence Information for CVE-2026-8199
请登录查看更多情报信息。
- https://jira.mongodb.org/browse/SERVER-122449issue-tracking
- https://nvd.nist.gov/vuln/detail/CVE-2026-8199
Same Patch Batch · MongoDB, Inc. · 2026-05-13 · 5 CVEs total
| CVE-2026-8336 | 7.5 HIGH | Post-authentication use-after-free error in $_internalJsEmit and mapreduce commands |
| CVE-2026-8201 | 6.4 MEDIUM | Use-After-Free in MongoDB FLE Query Analysis When Processing Positional Projections on Enc |
| CVE-2026-8202 | 4.3 MEDIUM | Post-authentication CPU utilization DoS via $trim/$ltrim/$rtrim operators |
| CVE-2026-8200 | 2.7 LOW | Schema validation log messages may not redact user data |
IV. Related Vulnerabilities
Same product: MongoDB Server
- CVE-2026-8202
Post-authentication CPU utilization DoS via $trim/$ltrim/$rt - CVE-2026-8336
Post-authentication use-after-free error in $_internalJsEmit - CVE-2026-8201
Use-After-Free in MongoDB FLE Query Analysis When Processing - CVE-2026-8200
Schema validation log messages may not redact user data - CVE-2026-8053
FlatBSON Duplicate Field Index Drift
Same vendor: MongoDB, Inc.
- CVE-2026-8202
Post-authentication CPU utilization DoS via $trim/$ltrim/$rt - CVE-2026-8336
Post-authentication use-after-free error in $_internalJsEmit - CVE-2026-8201
Use-After-Free in MongoDB FLE Query Analysis When Processing - CVE-2026-8200
Schema validation log messages may not redact user data - CVE-2026-8053
FlatBSON Duplicate Field Index Drift
Same weakness: CWE-1325
- CVE-2026-6535
Improperly Controlled Sequential Memory Allocation in Wiresh - CVE-2026-6533
Improperly Controlled Sequential Memory Allocation in Wiresh - CVE-2026-6869
Improperly Controlled Sequential Memory Allocation in Wiresh - CVE-2026-6867
Improperly Controlled Sequential Memory Allocation in Wiresh - CVE-2026-3201
Improperly Controlled Sequential Memory Allocation in Wiresh
V. Comments for CVE-2026-8199
No comments yet