Server-side request forgery in Atlassian Fisheye
Priority LOW 21CWE-918Published · Updated
Key facts
- Attack vector
- Network
- Privileges required
- Low
- User interaction
- None
- Attack complexity
- Low
- Impact type
- Information disclosure
- Confidentiality · integrity · availability
- Low · None · None
- Fix status
- Fixed
Attack profile from CVSS 3.1 · NVD. Fix status from CNA. Impact type from CWE-918 and the CVSS impact.
Summary
The DefaultRepositoryAdminService class in Fisheye and Crucible before version 4.8.9 allowed remote attackers, who have 'can add repository permission', to enumerate the existence of internal network and filesystem resources via a Server-Side Request Forgery (SSRF) vulnerability.
Why it matters now
Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.00766 55th percentileScored 2026-11-07
Fix Fixed Fisheye (Atlassian): 4.8.9Crucible (Atlassian): 4.8.9
SSVC decision points
CISA ADP · SSVC 2.0.3
- Exploitation
- None
- Automatable
- No
- Technical impact
- Partial
The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| Atlassian | Fisheye | before 4.8.9 | 4.8.9 | Patch available | CNA |
| Atlassian | Crucible | before 4.8.9 | 4.8.9 | Patch available | CNA |
Remediation
- Fix · CNA Fisheye (Atlassian) Fixed in 4.8.9
- Fix · CNA Crucible (Atlassian) Fixed in 4.8.9
Timeline
- 2026-10-02 Threatist record created from CVE-2021-43954
- 2026-10-03 Alias added: GHSA-w6c2-26pj-hpq6
References
More Atlassian Crucible vulnerabilities
- TI-2026-67904 Arbitrary file access in Atlassian Data Center products KEVCVSS 4.0CRITICAL 9.3
- TI-2024-14399 Code injection in Atlassian Confluence Data Center CVSS 3.1HIGH 8.8
- TI-2012-02540 Atlassian JIRA before 5.0.1; Confluence before 3.5.16, 4.0 before 4.0.7, and 4.1 before… CVSS 3.1CRITICAL 9.1
- TI-2022-09598 Improper authentication in Atlassian Bamboo Server CVSS 3.1CRITICAL 9.8
- TI-2021-19720 Missing brute-force protection in Atlassian Fisheye CVSS 3.1CRITICAL 9.8
- TI-2017-12407 It was possible for double OGNL evaluation in certain redirect action and in WebWork URL… CVSS 3.0CRITICAL 9.8
Sources
- CVE-2021-43954 · CVE Program
- CVE-2021-43954 · NVD
- FIRST EPSS
- GHSA-w6c2-26pj-hpq6 · GitHub Advisory Database · CC BY 4.0
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