5.4

CVE-2026-81524: mongodb c_driver Resource Injection

CVSS: 5.4v3.1MediumAnalyzed
AliasesUBUNTU-CVE-2026-81524DEBIAN-CVE-2026-81524openSUSE-SU-2026:11671-1
Published 27-08-2026Last modified 28-08-2026
Open JSON

Vulnerability summary

CVE-2026-81524 is a medium (CVSS 5.4) Resource Injection vulnerability in mongodb c_driver. EPSS estimates a 0.27% chance of exploitation in the next 30 days, higher than 17.6% of scored vulnerabilities.

Overall risk
22/100
0100
Low · default modelHow is this calculated?
CVSS score
5.4/10
010
Medium · v3.1 (CVE.org)
EPSS score
0.27%
0%100%
Low · +0.11 pp in 30 days
KEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits0No public exploits recorded

Timeline

  1. 27-08-2026
    PublishedVulnerability first disclosed.
  2. 28-08-2026
    Last modifiedVulnerability information updated.

Description

A weakness in the MongoDB C Driver allows special elements in caller-supplied database and collection name components to pass without sanitization when the driver composes the target namespace for an operation. An application that incorporates untrusted input into these name components can have operations directed at a resource other than the one intended.

CVSS metrics

7 scores · 4 sources · 2 versions

EPSS trend

Probability

0.27%

Chance of exploitation in the next 30 days

Percentile

18%

Versus all other CVEs

30-day change

+0.11 pp

From 0.16% on 20-09-2026

20-09-202620-10-2026
EPSS score
0.27%

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

Debian1 product
  • mongo-c-driverAll versions (No fix recorded) | < 1.30.4-1+deb13u3 | < 2.5.1-1
Mongodb1 product
Opensuse1 product
  • mongo-c-driver&distro=openSUSE Tumbleweed< 2.5.1-1.1
Ubuntu1 product
  • mongo-c-driverAll versions (No fix recorded)

4 vendors · 4 products

References

6 links