The DefaultOSWorkflowConfigurator class in Jira Server and Jira Data Center before version 8.18.1 allows remote attackers who can trick a system administrator to import their malicious workflow to execute arbitrary code via a Remote Code Execution (RCE) vulnerability
Published Aug 2, 2021
8.8
HIGHCVSS 3.1
EPSS 1.80%
Description
The DefaultOSWorkflowConfigurator class in Jira Server and Jira Data Center before version 8.18.1 allows remote attackers who can trick a system administrator to import their malicious workflow to execute arbitrary code via a Remote Code Execution (RCE) vulnerability. The vulnerability allowed for various problematic OSWorkflow classes to be used as part of workflows. The fix for this issue blocks usage of unsafe conditions, validators, functions and registers that are build-in into OSWorkflow library and other Jira dependencies. Atlassian-made functions or functions provided by 3rd party plugins are not affected by this fix.
Affected products
-
- Version unspecifiedStatusaffectedConstraints<8.18.1
- Version
-
- Version unspecifiedStatusaffectedConstraints<8.18.1
- Version
Default status is the baseline for the product, each version can override it (e.g. patched versions marked unaffected).
| Vendor | Product | Default status | Versions | ||||||
|---|---|---|---|---|---|---|---|---|---|
| Atlassian | Jira Data Center | n/a |
| ||||||
| Atlassian | Jira Server | n/a |
|
- < 8.18.1
- < 8.18.1
-
- Version 0StatusaffectedConstraints<8.18.1
- Version
-
- Version 0StatusaffectedConstraints<8.18.1
- Version
Default status is the baseline for the product, each version can override it (e.g. patched versions marked unaffected).
| Vendor | Product | Default status | Versions | ||||||
|---|---|---|---|---|---|---|---|---|---|
| Atlassian | Jira Data Center | n/a |
| ||||||
| Atlassian | Jira Server | n/a |
|
No Red Hat product state for this CVE.
No package ranges for this CVE.
Remediation
No remediation recorded yet.
Metrics
No CVSS v4.0 score for this CVE.
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
No CVSS v3.0 score for this CVE.
AV:N/AC:M/Au:N/C:P/I:P/A:P
This CVE is not in the KEV list.
CISA SSVC (Vulnrichment)
Stakeholder-Specific Vulnerability Categorization from CISA ADP.
Exploitation
NoneAutomatable
NoTechnical Impact
TotalDecision
n/aAssessed Oct 17, 2024 · SSVC 2.0.3
Estimated probability of exploitation in the wild in the next 30 days (FIRST EPSS). As of Oct 1, 2026.
Score over time
2021–2026- EPSS v1
- EPSS v5
- EPSS v2
- EPSS v3
- EPSS v4
Percentile over time
- EPSS v1
- EPSS v5
- EPSS v2
- EPSS v3
- EPSS v4
Table of values (20 key points)
Flat stretches are collapsed; showing up to 120 newest points.
| Date | Score | Percentile | Model |
|---|---|---|---|
| Oct 1, 2026 | 1.80% (0.01802) | 77.72th | v5 (v2026.06.15) |
| Jun 15, 2026 | 1.80% (0.01802) | 75.61th | v5 (v2026.06.15) |
| Dec 4, 2025 | 2.57% (0.02571) | 85.06th | v4 (v2025.03.14) |
| Jul 7, 2025 | 1.46% (0.01455) | 79.91th | v4 (v2025.03.14) |
| Mar 30, 2025 | 2.57% (0.02571) | 84.20th | v4 (v2025.03.14) |
| Mar 29, 2025 | 4.95% (0.04951) | 82.38th | v4 (v2025.03.14) |
| Mar 17, 2025 | 2.57% (0.02571) | 84.52th | v4 (v2025.03.14) |
| Dec 12, 2024 | 0.39% (0.00393) | 74.22th | v3 (v2023.03.01) |
| Jul 8, 2024 | 0.39% (0.00393) | 73.53th | v3 (v2023.03.01) |
| Apr 17, 2024 | 0.37% (0.00372) | 72.40th | v3 (v2023.03.01) |
| Mar 8, 2024 | 0.52% (0.00515) | 76.18th | v3 (v2023.03.01) |
| Feb 29, 2024 | 0.47% (0.00474) | 75.08th | v3 (v2023.03.01) |
| Jan 14, 2024 | 0.47% (0.00474) | 73.08th | v3 (v2023.03.01) |
| Oct 24, 2023 | 0.46% (0.00457) | 72.45th | v3 (v2023.03.01) |
| Sep 3, 2023 | 0.42% (0.00416) | 70.84th | v3 (v2023.03.01) |
| Mar 7, 2023 | 0.35% (0.00352) | 67.47th | v3 (v2023.03.01) |
| Mar 6, 2023 | 1.16% (0.01156) | 61.37th | v2 (v2022.01.01) |
| Feb 4, 2022 | 1.16% (0.01156) | 34.92th | v2 (v2022.01.01) |
| Feb 3, 2022 | 0.92% (0.00918) | 25.93th | v5 (v2026.06.15) |
| Aug 2, 2021 | 0.92% (0.00918) | 0.00th | v1 |
References (1)
- https://jira.atlassian.com/browse/JRASERVER-72660 x_refsource_MISCIssue TrackingVendor Advisory
| Link | Providers | Tags |
|---|---|---|
| https://jira.atlassian.com/browse/JRASERVER-72660 | x_refsource_MISCIssue TrackingVendor Advisory |
Change history (0)
No recorded changes yet.