CVE-2021-26075

Severity: medium (CVSS 4.3 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 1.6% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2021-04-15 · updated 2026-06-17

Description

The Jira importers plugin AttachTemporaryFile rest resource in Jira Server and Data Center before version 8.5.12, from version 8.6.0 before 8.13.4, and from version 8.14.0 before 8.15.1 allowed remote authenticated attackers to obtain the full path of the Jira application data directory via an information disclosure vulnerability in the error message when presented with an invalid filename.

Affected products

Atlassian Data Center: before 8.5.12 — fixed in 8.5.12
Atlassian Jira: before 8.5.12 — fixed in 8.5.12
Atlassian Jira: from 8.6.0 before 8.13.4; from 8.14.0 before 8.15.1 — fixed in 8.13.4, 8.15.1
Atlassian Jira: from 8.6.0 before 8.13.4; from 8.14.0 before 8.15.1 — fixed in 8.13.4, 8.15.1

How to fix

Upgrade to a fixed version: Atlassian Data Center 8.5.12; Atlassian Jira 8.5.12; Atlassian Jira 8.13.4, 8.15.1; Atlassian Jira 8.13.4, 8.15.1. Check the vendor advisory for mitigations.

References

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