CVE-2021-26085
Summary
| CVE | CVE-2021-26085 |
|---|---|
| State | PUBLIC |
| Assigner | [email protected] |
| Source Priority | CVE Program / NVD first with legacy fallback |
| Published | 2021-08-03 00:15:00 UTC |
| Updated | 2023-08-08 14:22:00 UTC |
| Description | Affected versions of Atlassian Confluence Server allow remote attackers to view restricted resources via a Pre-Authorization Arbitrary File Read vulnerability in the /s/ endpoint. The affected versions are before version 7.4.10, and from version 7.5.0 before 7.12.3. |
Risk And Classification
EPSS: 0.939770000 probability, percentile 0.998870000 (date 2026-04-01)
CISA KEV: Listed on 2022-03-28; due 2022-04-18; ransomware use Known
Problem Types: CWE-425
CISA Known Exploited Vulnerability
| Vendor | Atlassian |
|---|---|
| Product | Confluence Server |
| Name | Atlassian Confluence Server Pre-Authorization Arbitrary File Read Vulnerability |
| Required Action | Apply updates per vendor instructions. |
| Notes | https://nvd.nist.gov/vuln/detail/CVE-2021-26085 |
NVD Known Affected Configurations (CPE 2.3)
| Type | Vendor | Product | Version | Update | Edition | Language |
|---|---|---|---|---|---|---|
| Application | Atlassian | Confluence | All | All | All | All |
| Application | Atlassian | Confluence Data Center | All | All | All | All |
| Application | Atlassian | Confluence Server | All | All | All | All |
References
| Reference | Source | Link | Tags |
|---|---|---|---|
| Atlassian Confluence Server 7.5.1 Arbitrary File Read ≈ Packet Storm | MISC | packetstormsecurity.com | |
| [CONFSERVER-67893] Pre-Authorization Arbitrary File Read in /s/ endpoint - CVE-2021-26085 - Create and track feature requests for Atlassian products. | N/A | jira.atlassian.com | |
| CVE Program record | CVE.ORG | www.cve.org | canonical |
| NVD vulnerability detail | NVD | nvd.nist.gov | canonical, analysis |
| CISA Known Exploited Vulnerabilities catalog | CISA | www.cisa.gov | kev |
No vendor comments have been submitted for this CVE.