How severe is CVE-2021-41311?

CVE-2021-41311 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 none, integrity high, and availability none.

Is CVE-2021-41311 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (53rd percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2021-41311?

CVE-2021-41311 affects Atlassian Jira Software Data Center. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2021-41311?

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-2021-41311 published?

CVE-2021-41311 was published on 2021-12-08 and last updated on 2026-06-17.

CVE-2021-41311

CVE-2021-41311 is a high-severity vulnerability in Atlassian Jira Software Data Center 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-287.

Key facts

Severity: High (CVSS 3.x base score 7.5)
CVSS v2: 5.0
EPSS exploit prediction: 1% (53rd percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-287
Affected product: Atlassian Jira Software Data Center
Published: 2021-12-08
Last modified: 2026-06-17

Description

Affected versions of Atlassian Jira Server and Data Center allow attackers with access to an administrator account that has had its access revoked to modify projects' Users & Roles settings, via a Broken Authentication vulnerability in the /plugins/servlet/project-config/PROJECT/roles endpoint. The affected versions are before version 8.19.1.

Frequently asked questions

What is CVE-2021-41311?: Affected versions of Atlassian Jira Server and Data Center allow attackers with access to an administrator account that has had its access revoked to modify projects' Users & Roles settings, via a Broken Authentication vulnerability in the /plugins/servlet/project-config/PROJECT/roles endpoint. The affected versions are before version 8.19.1.
How severe is CVE-2021-41311?: CVE-2021-41311 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 none, integrity high, and availability none.
Is CVE-2021-41311 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (53rd percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2021-41311?: CVE-2021-41311 affects Atlassian Jira Software Data Center. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2021-41311?: 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-2021-41311 published?: CVE-2021-41311 was published on 2021-12-08 and last updated on 2026-06-17.

References

https://jira.atlassian.com/browse/JRASERVER-72802

Affected products (1)

cpe:2.3:a:atlassian:jira_software_data_center:*:*:*:*:*:*:*:*

More vulnerabilities in Atlassian Jira Software Data Center

CVE-2020-14172 — Critical (CVSS 9.8): This issue exists to document that a security improvement in the way that Jira Server and Data Center use velocity…
CVE-2019-20409 — Critical (CVSS 9.8): The way in which velocity templates were used in Atlassian Jira Server and Data Center prior to version 8.8.0 allowed…
CVE-2021-41307 — High (CVSS 7.5): Affected versions of Atlassian Jira Server and Data Center allow unauthenticated remote attackers to view the names of…
CVE-2021-41306 — High (CVSS 7.5): Affected versions of Atlassian Jira Server and Data Center allow anonymous remote attackers to view private project and…
CVE-2021-41305 — High (CVSS 7.5): Affected versions of Atlassian Jira Server and Data Center allow anonymous remote attackers to view the names of…
CVE-2020-14178 — High (CVSS 7.5): Affected versions of Atlassian Jira Server and Data Center allow remote attackers to enumerate project keys via an…

All CVEs affecting Atlassian Jira Software Data Center →

Other CWE-287 (Improper Authentication) vulnerabilities

CVE-2026-45480 — Critical (CVSS 10.0): Improper authentication in Azure Active Directory allows an unauthorized attacker to elevate privileges over a network.
CVE-2026-46389 — Critical (CVSS 10.0): UDS Identity Config builds the Keycloak configuration image (realm, plugins, theme, truststore, JARs) consumed by UDS…
CVE-2026-10611 — Critical (CVSS 10.0): An authentication bypass vulnerability exists in MISP when LDAP mixed authentication is enabled with OTP enforcement.…
CVE-2026-47280 — Critical (CVSS 10.0): Improper authentication in Azure Resource Manager (ARM) allows an unauthorized attacker to elevate privileges over a…
CVE-2026-42822 — Critical (CVSS 10.0): Improper authentication in Azure Local Disconnected Operations allows an unauthorized attacker to elevate privileges…
CVE-2026-20182 — Critical (CVSS 10.0): May 2026: This security advisory provides the details and fix information for a vulnerability that was discovered and…

Browse all CWE-287 (Improper Authentication) vulnerabilities →