Which products and versions are affected by CVE-2019-8449?

Affected: Jira (Atlassian) versions >= unspecified. The full list is in the CVE brief.

Is CVE-2019-8449 being exploited in the wild?

It is not listed in any known-exploited vulnerabilities catalog.

Is CVE-2019-8449 in the CISA KEV catalog?

No, it is not currently listed in the CISA Known Exploited Vulnerabilities catalog.

Is there a public exploit for CVE-2019-8449?

Public exploit code is available.

Is there a fix for CVE-2019-8449?

Fixed versions are available, including Jira 8.4.0.

How urgently should CVE-2019-8449 be patched?

Brandefense priority: patch immediately, because it is very likely to be exploited soon.

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Vulnerability Intelligence

CVE-2019-8449

MediumPublic exploit

The /rest/api/latest/groupuserpicker resource in Jira before version 8.4.0 allows remote attackers to enumerate usernames via an information disclosure vulnerability.

Published Sep 11, 2019 · Updated Nov 21, 2024

Key Facts

Patch immediately

CVE-2019-8449 is a medium-severity vulnerability (CVSS 5.3 v3.1) affecting Jira (Atlassian).
It is not listed in any known-exploited vulnerabilities catalog. Public exploit code is available.
EPSS estimates a 85% probability of exploitation in the next 30 days.
Fixed versions are available, including Jira 8.4.0.
Brandefense priority: patch immediately, because it is very likely to be exploited soon.

CVSS v3.1

5.3

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N

EPSS (30-day exploit likelihood)

85%

Higher than 99.7% of all scored CVEs

Exploited in the wild

No known

Not in a known-exploited catalog

Public exploit code

Available

Proof-of-concept or weaponized module

Get the full CVE-2019-8449 brief as a PDF

Every affected product and fixed release, exploitation status and a first 24 hours response checklist, emailed within minutes.

Description

The /rest/api/latest/groupuserpicker resource in Jira before version 8.4.0 allows remote attackers to enumerate usernames via an information disclosure vulnerability.

Affected Products

2 affected entries in total

Product	Affected versions	Fixed in
JiraAtlassian	>= unspecified	8.4.0

Patched Releases

Jira

8.4.0

Timeline

Publicly disclosed
Sep 11, 2019
Last updated
Nov 21, 2024

Weakness Type

CWE-306 Missing Authentication for Critical Function

References

FAQ

Common Questions.

The /rest/api/latest/groupuserpicker resource in Jira before version 8.4.0 allows remote attackers to enumerate usernames via an information disclosure vulnerability.
Affected: Jira (Atlassian) versions >= unspecified. The full list is in the CVE brief.
It is not listed in any known-exploited vulnerabilities catalog.
No, it is not currently listed in the CISA Known Exploited Vulnerabilities catalog.
Public exploit code is available.
Fixed versions are available, including Jira 8.4.0.
Brandefense priority: patch immediately, because it is very likely to be exploited soon.

Is CVE-2019-8449 Running On Your Attack Surface?

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