Vulnerability · Published Jul 20, 2021 · Assigned by atlassian
CVE-2021-26081
Medium 5.3
In plain English
A medium-severity security flaw in Jira Data Center from Atlassian. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 1.3% (higher than 70% of all known vulnerabilities).
Severity (CVSS 3.1)5.3Medium
Exploit odds (30 days)1.3%top 30.1% of all CVEs
Exploited in the wildNo reportsCISA SSVC: none
Attack toolingNoneno public tooling known
Official description
REST API in Atlassian Jira Server and Jira Data Center before version 8.5.14, from version 8.6.0 before 8.13.6, and from version 8.14.0 before 8.16.1 allows remote attackers to enumerate usernames via a Sensitive Data Exposure vulnerability in the `/rest/api/latest/user/avatar/temporary` endpoint.
Affected products (as reported)
| Vendor | Product | Versions |
|---|---|---|
| Atlassian | Jira Server | unspecified – before 8.5.148.6.0 – before unspecifiedunspecified – before 8.13.68.14.0 – before unspecifiedunspecified – before 8.16.1 |
| Atlassian | Jira Data Center | unspecified – before 8.5.148.6.0 – before unspecifiedunspecified – before 8.13.68.14.0 – before unspecifiedunspecified – before 8.16.1 |
References
- https://jira.atlassian.com/browse/JRASERVER-72499 x_refsource_MISC