8.8

CVE-2019-12421: apache nifi Insufficient Session Expiration

CVSS: 8.8v3.1HighModified
AliasesGHSA-fmqw-vqh5-cwq9
Published 19-11-2019Last modified 04-08-2024
Open JSON

Vulnerability summary

CVE-2019-12421 is a high (CVSS 8.8) Insufficient Session Expiration vulnerability in apache nifi. EPSS estimates a 1.85% chance of exploitation in the next 30 days, higher than 78.7% of scored vulnerabilities.

Overall risk
36/100
0100
Medium · default modelHow is this calculated?
CVSS score
8.8/10
010
High · v3.1 (NVD)
EPSS score
1.85%
0%100%
Low · 0.00 pp in 30 days
KEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits0No public exploits recorded

Timeline

  1. 19-11-2019
    PublishedVulnerability first disclosed.
  2. 04-08-2024
    Last modifiedVulnerability information updated.

Description

When using an authentication mechanism other than PKI, when the user clicks Log Out in NiFi versions 1.0.0 to 1.9.2, NiFi invalidates the authentication token on the client side but not on the server side. This permits the user's client-side token to be used for up to 12 hours after logging out to make API requests to NiFi.

CVSS metrics

3 scores · 2 sources · 2 versions

EPSS trend

Probability

1.85%

Chance of exploitation in the next 30 days

Percentile

79%

Versus all other CVEs

30-day change

0.00 pp

From 1.85% on 18-09-2026

18-09-202618-10-2026
EPSS score
1.85%

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

Org.apache.nifi2 products
  • nifi-web-api≥ 1.3.0, < 1.10.0
  • nifi-web-security≥ 1.3.0, < 1.10.0
Apache1 product
  • nifi≥ 1.0.0, ≤ 1.9.2

2 vendors · 3 products

References

6 links