7.1

CVE-2026-13071: mongodb Use After Free

CVSS: 7.1v4.0HighAnalyzed
AliasesUBUNTU-CVE-2026-13071
Published 22-07-2026Last modified 23-07-2026
Open JSON

Vulnerability summary

CVE-2026-13071 is a high (CVSS 7.1) Use After Free vulnerability in mongodb. EPSS estimates a 0.42% chance of exploitation in the next 30 days, higher than 34.9% 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
0.42%
0%100%
Low · +0.17 pp in 30 days
KEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits0No public exploits recorded

Timeline

  1. 22-07-2026
    PublishedVulnerability first disclosed.
  2. 23-07-2026
    Last modifiedVulnerability information updated.

Description

An authenticated user with read access can cause the mongod process to be terminated through certain aggregation expressions that execute server-side JavaScript. The issue involves improper memory handling during document processing.

CVSS metrics

6 scores · 3 sources · 2 versions

EPSS trend

Probability

0.42%

Chance of exploitation in the next 30 days

Percentile

35%

Versus all other CVEs

30-day change

+0.17 pp

From 0.25% on 19-09-2026

19-09-202619-10-2026
EPSS score
0.42%

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

Mongodb2 products
  • mongodb≥ 7.0.0, < 7.0.39 | ≥ 8.0.0, < 8.0.28 | ≥ 8.2.0, < 8.2.12 | ≥ 8.3.0, < 8.3.7
  • mongodb server≥ 7.0, < 7.0.39 | ≥ 8.0, < 8.0.28 | ≥ 8.2.0, < 8.2.12 | ≥ 8.3.0, < 8.3.7
Ubuntu1 product
  • mongodbAll versions (No fix recorded)

2 vendors · 3 products

References

3 links