CVE-2021-26085 is a pre-authorization arbitrary file read vulnerability in Atlassian Confluence Server and Data Center, allowing remote attackers to view restricted resources via the /s/ endpoint. This medium-severity vulnerability has a CVSS score of 5.3, indicating low impact on confidentiality and no impact on integrity or availability, with a network attack vector and low attack complexity. Critically, this CVE is actively exploited, listed in CISA's KEV catalog, and has available public exploit code, including Nuclei templates and an ExploitDB entry, demonstrating significant community and media attention.
| Vendor | Product | Version(s) | CPE |
|---|---|---|---|
< 7.4.10CPE matchmatch criteria | cpe:2.3:a:atlassian:confluence_data_center:*:*:*:*:*:*:*:* | ||
>= 7.5.0, < 7.12.3CPE matchmatch criteria | cpe:2.3:a:atlassian:confluence_data_center:*:*:*:*:*:*:*:* | ||
< 7.4.10CPE matchmatch criteria | cpe:2.3:a:atlassian:confluence_server:*:*:*:*:*:*:*:* | ||
>= 7.5.0, < 7.12.3CPE matchmatch criteria | cpe:2.3:a:atlassian:confluence_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.