7.1

CVE-2026-8199: mongodb inc mongodb server

CVSS: 7.1v4.0HighAnalyzed
AliasesUBUNTU-CVE-2026-8199
Published 13-05-2026Last modified 13-05-2026
Open JSON

Vulnerability summary

CVE-2026-8199 is a high (CVSS 7.1) vulnerability in mongodb inc mongodb server. EPSS estimates a 0.45% chance of exploitation in the next 30 days, higher than 38.1% of scored vulnerabilities.

Overall risk
28/100
0100
Medium · default modelHow is this calculated?
CVSS score
7.1/10
010
High · v4.0 (CVE.org)
EPSS score
0.45%
0%100%
Low · +0.19 pp in 30 days
KEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits0No public exploits recorded

Timeline

  1. 13-05-2026
    PublishedVulnerability first disclosed.
  2. 13-05-2026
    Last modifiedVulnerability information updated.

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.

CVSS metrics

6 scores · 3 sources · 2 versions

EPSS trend

Probability

0.45%

Chance of exploitation in the next 30 days

Percentile

38%

Versus all other CVEs

30-day change

+0.19 pp

From 0.26% on 21-09-2026

21-09-202621-10-2026
EPSS score
0.45%

Known exploited

Compare KEV catalogs

Not in any of the 3 tracked catalogs.

Public exploits

0 found

No public exploits indexed.

Weaknesses

CWE · root cause

Affected systems

Mongodb1 product
  • mongodb≥ 7.0.0, < 7.0.34 | ≥ 8.0.0, < 8.0.23 | ≥ 8.2.0, < 8.2.9 | ≥ 8.3.0, < 8.3.2
Mongodb inc1 product
  • mongodb server≥ 7.0, < 7.0.34 | ≥ 8.0, < 8.0.23 | ≥ 8.2, < 8.2.9 | ≥ 8.3, < 8.3.2
Ubuntu1 product
  • mongodbAll versions (No fix recorded)

3 vendors · 3 products

References

3 links