7.1

CVE-2026-104004: mongodb mongodb server NULL Pointer Dereference

CVSS: 7.1v4.0HighAwaiting analysis
AliasesUBUNTU-CVE-2026-104004
Published 13-10-2026Last modified 15-10-2026

Vulnerability summary

CVE-2026-104004 is a high (CVSS 7.1) NULL Pointer Dereference vulnerability in mongodb mongodb server. EPSS estimates a 0.24% chance of exploitation in the next 30 days, higher than 13.3% 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
0.24%
0%100%
Low · Change unavailable
KEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits0No public exploits recorded

Timeline

  1. 13-10-2026
    PublishedVulnerability first disclosed.
  2. 15-10-2026
    Last modifiedVulnerability information updated.

Description

MongoDB Server's collection validation feature may not properly handle certain expressions stored in a validator. In some cases, this can cause the server process to stop running when a document is later inserted. The behavior can occur for authenticated users with write access.

CVSS metrics

6 scores · 3 sources · 2 versions

EPSS trend

Probability

0.24%

Chance of exploitation in the next 30 days

Percentile

13%

Versus all other CVEs

30-day change

Change unavailable

Change unavailable

14-10-202618-10-2026
EPSS score
0.24%

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 server≥ 8.3.0, < 8.3.13 | ≥ 8.0, < 8.0.34 | ≥ 9.0, < 9.0.4
Ubuntu1 product
  • mongodbAll versions (No fix recorded)

2 vendors · 2 products

References

3 links