CVE-2021-39127

mediumpriority · track · 21EPSS 0.013 · 71 %ileEUUS

grimoire priorityP3 · Track

Exploitable?

—

no known exploitation

Likely / severe?

1.31% (71st) EPSS

CVSS 5 · medium

Is it mine?

10 products

Check your exposure

Who says so?

3 sources

cnnvd · enisa_euvd · nvd

EPSS · scored 2026-10-23

Affected versions of Atlassian Jira Server and Data Center allow anonymous remote attackers to the query component JQL endpoint via a Broken Access Control vulnerability (BAC) vulnerability. The affected versions are before version 8.5.10, and from version 8.6.0 before 8.13.1.

cvss

Technical severity, 0–10. One row per scoring source.

5.3

010

base score 0–10 · higher = more severe · hover a vector to decode

v2.05mediumAV:N/AC:L/Au:N/C:N/I:P/A:Nprimary · NVD / NIST USexploitability 10 · impact 2.9

v3.15.3mediumCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:Nprimary · NVD / NIST USexploitability 3.9 · impact 1.4

v3.15.3mediumCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:Nsecondary · ENISA EU

v3.15.3mediumCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:Nsecondaryexploitability 3.9 · impact 1.4

v3.14.9mediumCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N/E:Usecondary · CVSS-BT (t0sche)

ssvc

A stakeholder decision — act, attend, or track — from exploitation and impact.

Exploitation: none · Automatable: yes · Technical Impact: partialcoordinatorcisa_ssvcUS

weaknesses

The CWE weakness classes this flaw belongs to.

No weakness (CWE) mapping recorded.

affected products (10)

Products and version ranges known to be affected.

Atlassian Jira Data Center8.6.0 → unspecifiedenisa_euvdEU
Atlassian Jira Data Centerunspecified → 8.13.1enisa_euvdEU
Atlassian Jira Data Centerunspecified → 8.5.10enisa_euvdEU
Atlassian Jira Server8.6.0 → unspecifiedenisa_euvdEU
Atlassian Jira Serverunspecified → 8.13.1enisa_euvdEU
Atlassian Jira Serverunspecified → 8.5.10enisa_euvdEU
atlassian jira< 8.5.10nvdUScpe:2.3:a:atlassian:jira:*:*:*:*:*:*:*:*
atlassian jira data center8.6.0 → 8.13.1nvdUScpe:2.3:a:atlassian:jira_data_center:*:*:*:*:*:*:*:*
atlassian jira server8.6.0 → 8.13.1nvdUScpe:2.3:a:atlassian:jira_server:*:*:*:*:*:*:*:*
atlassian jira software data center< 8.5.10nvdUScpe:2.3:a:atlassian:jira_software_data_center:*:*:*:*:*:*:*:*

also known as (3)

Other names and identifiers for this entity.

sources

Which sources assert this record, and when.

cnnvd enisa_euvd nvd NVD CVE.org

published 2021-10-21modified 2026-06-17

references (4)

External citations — patches, advisories, analysis.

https://jira.atlassian.com/browse/JRASERVER-72003 cnnvd
https://nvd.nist.gov/vuln/detail/CVE-2021-39127 cnnvd
https://jira.atlassian.com/browse/JRASERVER-72003 enisa_euvd
https://jira.atlassian.com/browse/JRASERVER-72003Issue TrackingPatchVendor Advisorynvd

scry

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