CVE-2021-20326: mongodb inc mongodb server Improper Input Validation
CVSS: 6.5v3.1MediumModified
AliasesUBUNTU-CVE-2021-20326
Published 30-04-2021Last modified 19-11-2024
Vulnerability summary
CVE-2021-20326 is a medium (CVSS 6.5) Improper Input Validation vulnerability in mongodb inc mongodb server. EPSS estimates a 0.95% chance of exploitation in the next 30 days, higher than 60.4% of scored vulnerabilities.
CVSS score
6.5/10
010
Medium · v3.1 (CVE.org)EPSS score
0.95%
0%100%
Low · 0.00 pp in 30 daysKEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits0No public exploits recorded
Timeline
- 30-04-2021PublishedVulnerability first disclosed.
- 19-11-2024Last modifiedVulnerability information updated.
Description
A user authorized to performing a specific type of find query may trigger a denial of service. This issue affects MongoDB Server v4.4 versions prior to 4.4.4.
CVSS metrics
4 scores · 3 sources · 2 versionsMedium 6.5Preferred score · CVE.org (CNA)
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:HSourcesAll 3 agree
- OSV · UbuntuEcosystem advisory · calculated6.5MediumCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
- NVDNIST6.5MediumCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Medium 4.0Preferred score · NVD (NIST)
AV:N/AC:L/Au:S/C:N/I:N/A:PSourcesSingle source
EPSS trend
Probability
0.95%
Chance of exploitation in the next 30 days
Percentile
60%
Versus all other CVEs
30-day change
0.00 pp
From 0.95% on 18-09-2026
18-09-202618-10-2026
EPSS score0.95%
Known exploited
Compare KEV catalogsNot in any of the 3 tracked catalogs.
Public exploits
0 foundNo public exploits indexed.
Weaknesses
CWE · root cause- CWE-20Improper Input ValidationThe product receives input or data, but it does not validate or incorrectly validates that the input has the properties that are required to process the data safely and correctly.
- CWE-732Incorrect Permission Assignment for Critical ResourceThe product specifies permissions for a security-critical resource in a way that allows that resource to be read or modified by unintended actors.
Affected systems
Mongodb1 product
- mongodb≥ 4.4.0, < 4.4.4
Mongodb inc1 product
- mongodb server≥ 4.4, < 4.4.4
Ubuntu1 product
- mongodbAll versions (No fix recorded)
3 vendors · 3 products