The OpenID client application in Atlassian Crowd before version 3.6.2, and from version 3.7.0 before 3.7.1 allows remote attackers to perform a Denial of Service attack via an XML Entity Expansion vulnerability
Published Feb 6, 2020
7.5
HIGHCVSS 3.1
EPSS 2.43%
Description
The OpenID client application in Atlassian Crowd before version 3.6.2, and from version 3.7.0 before 3.7.1 allows remote attackers to perform a Denial of Service attack via an XML Entity Expansion vulnerability.
Affected products
-
- Version 3.7.0StatusaffectedConstraints<unspecified
- Version unspecifiedStatusaffectedConstraints<3.6.2
- Version unspecifiedStatusaffectedConstraints<3.7.1
- Version
- < 3.2.11
- ≥ 3.3.0 · < 3.3.8
- ≥ 3.4.0 · < 3.4.7
- ≥ 3.5.0 · < 3.5.2
- ≥ 3.6.0 · < 3.6.2
- ≥ 3.6.3 · < 3.7.1
- ≥ 3.7.2 · < 4.0.0
No data.
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:N/S:U/C:N/I:N/A:H
No CVSS v3.0 score for this CVE.
AV:N/AC:L/Au:N/C:N/I:N/A:P
This CVE is not in the KEV list.
No CISA SSVC assessment for this CVE yet.
Estimated probability of exploitation in the wild in the next 30 days (FIRST EPSS). As of Oct 2, 2026.
Score over time
2021–2026- EPSS v1
- EPSS v2
- EPSS v3
- EPSS v4
- EPSS v5
Percentile over time
- EPSS v1
- EPSS v2
- EPSS v3
- EPSS v4
- EPSS v5
Table of values (18 key points)
Flat stretches are collapsed; showing up to 120 newest points.
| Date | Score | Percentile | Model |
|---|---|---|---|
| Oct 2, 2026 | 2.43% (0.02434) | 83.70th | v5 (v2026.06.15) |
| Jun 15, 2026 | 2.43% (0.02434) | 82.08th | v5 (v2026.06.15) |
| Mar 30, 2025 | 2.63% (0.02632) | 84.37th | v4 (v2025.03.14) |
| Mar 29, 2025 | 29.57% (0.29566) | 94.66th | v4 (v2025.03.14) |
| Mar 24, 2025 | 2.63% (0.02632) | 84.32th | v4 (v2025.03.14) |
| Mar 23, 2025 | 19.07% (0.19070) | 94.59th | v4 (v2025.03.14) |
| Mar 17, 2025 | 2.63% (0.02632) | 84.68th | v4 (v2025.03.14) |
| Jul 20, 2024 | 0.22% (0.00218) | 60.24th | v3 (v2023.03.01) |
| Jun 11, 2024 | 0.22% (0.00218) | 59.90th | v3 (v2023.03.01) |
| Mar 7, 2023 | 0.22% (0.00217) | 57.88th | v3 (v2023.03.01) |
| Mar 6, 2023 | 1.05% (0.01055) | 52.13th | v2 (v2022.01.01) |
| Sep 17, 2022 | 1.05% (0.01055) | 50.47th | v2 (v2022.01.01) |
| Apr 1, 2022 | 1.05% (0.01055) | 48.43th | v2 (v2022.01.01) |
| Feb 4, 2022 | 4.50% (0.04499) | 74.08th | v2 (v2022.01.01) |
| Feb 3, 2022 | 4.24% (0.04237) | 74.61th | v1 |
| Jan 6, 2022 | 4.24% (0.04237) | 74.40th | v1 |
| Sep 1, 2021 | 0.98% (0.00976) | 61.78th | v1 |
| Apr 14, 2021 | 0.98% (0.00976) | 0.00th | v1 |
References (2)
- https://jira.atlassian.com/browse/CWD-5526 x_refsource_MISCVendor Advisory
- https://zeroauth.ltd/blog/2020/02/07/cve-2019-20104-atlassian-crowd-openid-client-vulnerable-to-remote-dos-via-xml-entity-expansion/ x_refsource_MISCExploitTechnical Description
| Link | Providers | Tags |
|---|---|---|
| https://jira.atlassian.com/browse/CWD-5526 | x_refsource_MISCVendor Advisory | |
| https://zeroauth.ltd/blog/2020/02/07/cve-2019-20104-atlassian-crowd-openid-client-vulnerable-to-remote-dos-via-xml-entity-expansion/ | x_refsource_MISCExploitTechnical Description |
Change history (0)
No recorded changes yet.