CVE-2021-26086 is a path traversal vulnerability affecting Atlassian Jira Server and Data Center, allowing unauthenticated remote attackers to read arbitrary files via the /WEB-INF/web.xml endpoint. This vulnerability carries a CVSS score of 5.3 (Medium) due to its low attack complexity and lack of required user interaction, potentially leading to unauthorized information disclosure. It is actively exploited in the wild, as evidenced by its inclusion in the KEV catalog and available public exploits like EDB-50380. The vulnerability has garnered significant community attention and has been integrated into botnet operations, highlighting its critical nature despite its "Inactive" status on the Hot List.
| Vendor | Product | Version(s) | CPE |
|---|---|---|---|
< 8.5.14CPE matchmatch criteria | cpe:2.3:a:atlassian:jira_data_center:*:*:*:*:*:*:*:* | ||
>= 8.6.0, < 8.13.6CPE matchmatch criteria | cpe:2.3:a:atlassian:jira_data_center:*:*:*:*:*:*:*:* | ||
>= 8.14.0, < 8.16.1CPE matchmatch criteria | cpe:2.3:a:atlassian:jira_data_center:*:*:*:*:*:*:*:* | ||
< 8.5.14CPE matchmatch criteria | cpe:2.3:a:atlassian:jira_server:*:*:*:*:*:*:*:* | ||
>= 8.6.0, < 8.13.6CPE matchmatch criteria | cpe:2.3:a:atlassian:jira_server:*:*:*:*:*:*:*:* |
CVSS version used by this source: 3.1
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N
The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.1 Bluesky, 0.0 Mastodon, and 0.4 GitHub mentions.
The average CVE in this peer group has 0.0 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.
Remediation records are not available for this CVE.