How severe is CVE-2019-14997?

CVE-2019-14997 has a CVSS 3.x base score of 4.3, rated medium severity. It is exploitable over network with low attack complexity, requires no privileges and user interaction. Impact on confidentiality is low, integrity none, and availability none.

Is CVE-2019-14997 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (64th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2019-14997?

CVE-2019-14997 affects Atlassian Jira Server. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2019-14997?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.

When was CVE-2019-14997 published?

CVE-2019-14997 was published on 2019-09-11 and last updated on 2026-06-17.

CVE-2019-14997

CVE-2019-14997 is a medium-severity vulnerability in Atlassian Jira Server with a CVSS 3.x base score of 4.3. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-524.

Key facts

Severity: Medium (CVSS 3.x base score 4.3)
CVSS v2: 4.3
EPSS exploit prediction: 1% (64th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-524
Affected product: Atlassian Jira Server
Published: 2019-09-11
Last modified: 2026-06-17

Description

The AccessLogFilter class in Jira before version 8.4.0 allows remote anonymous attackers to learn details about other users, including their username, via an information expose through caching vulnerability when Jira is configured with a reverse Proxy and or a load balancer with caching or a CDN.

Frequently asked questions

What is CVE-2019-14997?: The AccessLogFilter class in Jira before version 8.4.0 allows remote anonymous attackers to learn details about other users, including their username, via an information expose through caching vulnerability when Jira is configured with a reverse Proxy and or a load balancer with caching or a CDN.
How severe is CVE-2019-14997?: CVE-2019-14997 has a CVSS 3.x base score of 4.3, rated medium severity. It is exploitable over network with low attack complexity, requires no privileges and user interaction. Impact on confidentiality is low, integrity none, and availability none.
Is CVE-2019-14997 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (64th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2019-14997?: CVE-2019-14997 affects Atlassian Jira Server. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2019-14997?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2019-14997 published?: CVE-2019-14997 was published on 2019-09-11 and last updated on 2026-06-17.

References

https://jira.atlassian.com/browse/JRASERVER-69794

Affected products (1)

cpe:2.3:a:atlassian:jira_server:*:*:*:*:*:*:*:*

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