CVE-2020-13940: apache nifi
CVSS: 5.5v3.1MediumModified
AliasesGHSA-q4xf-3pmq-3hw8BIT-nifi-2020-13940
Published 01-10-2020Last modified 04-08-2024
Vulnerability summary
CVE-2020-13940 is a medium (CVSS 5.5) vulnerability in apache nifi. EPSS estimates a 1.91% chance of exploitation in the next 30 days, higher than 79.4% of scored vulnerabilities.
CVSS score
5.5/10
010
Medium · v3.1 (NVD)EPSS score
1.91%
0%100%
Low · 0.00 pp in 30 daysKEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits0No public exploits recorded
Advisory lineage
Upstream 0 · Downstream 1 · Related 1Timeline
- 01-10-2020PublishedVulnerability first disclosed.
- 04-08-2024Last modifiedVulnerability information updated.
Description
In Apache NiFi 1.0.0 to 1.11.4, the notification service manager and various policy authorizer and user group provider objects allowed trusted administrators to inadvertently configure a potentially malicious XML file. The XML file has the ability to make external calls to services (via XXE).
CVSS metrics
3 scores · 2 sources · 2 versionsMedium 5.5Preferred score · NVD (NIST)
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:NSourcesAll 2 agree
- OSV · MavenEcosystem advisory · calculated5.5MediumCVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N
Medium 4.3Preferred score · NVD (NIST)
AV:N/AC:M/Au:N/C:P/I:N/A:NSourcesSingle source
EPSS trend
Probability
1.91%
Chance of exploitation in the next 30 days
Percentile
79%
Versus all other CVEs
30-day change
0.00 pp
From 1.91% on 18-09-2026
18-09-202618-10-2026
EPSS score1.91%
Known exploited
Compare KEV catalogsNot in any of the 3 tracked catalogs.
Public exploits
0 foundNo public exploits indexed.
Weaknesses
CWE · root causeAffected systems
Apache1 product
- nifi≥ 1.0.0, ≤ 1.11.4
Org.apache.nifi1 product
- nifi≥ 1.0.0, < 1.12.0-RC1
2 vendors · 2 products
