How severe is CVE-2021-41306?

CVE-2021-41306 has a CVSS 3.x base score of 7.5, rated high severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity none, and availability none.

Is CVE-2021-41306 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 2% (72nd percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2021-41306?

CVE-2021-41306 primarily affects Atlassian Jira. In total, 3 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2021-41306?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.

When was CVE-2021-41306 published?

CVE-2021-41306 was published on 2021-10-26 and last updated on 2026-06-17.

CVE-2021-41306

CVE-2021-41306 is a high-severity vulnerability in Atlassian Jira with a CVSS 3.x base score of 7.5. 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-639.

Key facts

Severity: High (CVSS 3.x base score 7.5)
CVSS v2: 5.0
EPSS exploit prediction: 2% (72nd percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-639
Affected product: Atlassian Jira
Published: 2021-10-26
Last modified: 2026-06-17

Description

Affected versions of Atlassian Jira Server and Data Center allow anonymous remote attackers to view private project and filter names via an Insecure Direct Object References (IDOR) vulnerability in the Average Time in Status Gadget. The affected versions are before version 8.13.12, and from version 8.14.0 before 8.20.0.

Frequently asked questions

What is CVE-2021-41306?: Affected versions of Atlassian Jira Server and Data Center allow anonymous remote attackers to view private project and filter names via an Insecure Direct Object References (IDOR) vulnerability in the Average Time in Status Gadget. The affected versions are before version 8.13.12, and from version 8.14.0 before 8.20.0.
How severe is CVE-2021-41306?: CVE-2021-41306 has a CVSS 3.x base score of 7.5, rated high severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity none, and availability none.
Is CVE-2021-41306 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 2% (72nd percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2021-41306?: CVE-2021-41306 primarily affects Atlassian Jira. In total, 3 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2021-41306?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.
When was CVE-2021-41306 published?: CVE-2021-41306 was published on 2021-10-26 and last updated on 2026-06-17.

References

https://jira.atlassian.com/browse/JRASERVER-72915

Affected products (3)

cpe:2.3:a:atlassian:jira:*:*:*:*:*:*:*:*
cpe:2.3:a:atlassian:jira_server:*:*:*:*:*:*:*:*
cpe:2.3:a:atlassian:jira_software_data_center:*:*:*:*:*:*:*:*

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