Dragonfly tiny file download uses hard coded HTTP protocol
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- None
- Attack complexity
- Low
- Attack requirements
- None
- Impact type
- Information disclosure
- Confidentiality · integrity · availability
- None · Low · None
- Fix status
- Fixed
Attack profile from CVSS 4.0 · CNA. Fix status from CNA and GitHub. Impact type from CWE-311.
Summary
Dragonfly is an open source P2P-based file distribution and image acceleration system. Prior to 2.1.0, the code in the scheduler for downloading a tiny file is hard coded to use the HTTP protocol, rather than HTTPS. This means that an attacker could perform a Man-in-the-Middle attack, changing the network request so that a different piece of data gets downloaded. This vulnerability is fixed in 2.1.0.
Why it matters now
SSVC decision points
CISA ADP · SSVC 2.0.3
- Exploitation
- None
- Automatable
- Yes
- 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 |
|---|---|---|---|---|---|
| backstage | dragonfly | before 2.1.0 | 2.1.0 | Patch available | CNA |
| — | github.com/dragonflyoss/dragonfly (Go) | before 2.1.0 | 2.1.0 | Patch available | GHSA-mcvp-rpgg-9273 |
| — | d7y.io/dragonfly/v2 (Go) | before 2.1.0 | 2.1.0 | Patch available | GHSA-mcvp-rpgg-9273 |
- dragonfly Vendorbackstage Affected before 2.1.0 Fixed in 2.1.0 Patch available CNA
- github.com/dragonflyoss/dragonfly (Go) Vendor— Affected before 2.1.0 Fixed in 2.1.0 Patch available GHSA-mcvp-rpgg-9273
- d7y.io/dragonfly/v2 (Go) Vendor— Affected before 2.1.0 Fixed in 2.1.0 Patch available GHSA-mcvp-rpgg-9273
Remediation
- Fix · CNA dragonfly (dragonflyoss) Fixed in 2.1.0
- Fix · GHSA-mcvp-rpgg-9273 github.com/dragonflyoss/dragonfly (Go) Fixed in 2.1.0 Advisory →
- Fix · GHSA-mcvp-rpgg-9273 d7y.io/dragonfly/v2 (Go) Fixed in 2.1.0 Advisory →
Timeline
- 2026-10-02 Threatist record created from CVE-2025-59410
- 2026-10-03 Alias added: GHSA-mcvp-rpgg-9273
References
More backstage Dragonfly vulnerabilities
- TI-2023-12294 Dragonfly2 vulnerable to hard coded cyptographic key CVSS 3.1CRITICAL 9.8
- TI-2025-36909 Dragonfly incorrectly handles a task structure’s usedTraffic field CVSS 4.0MEDIUM 5.5
- TI-2025-36907 Dragonfly server-side request forgery vulnerability CVSS 4.0MEDIUM 5.5
- TI-2025-36908 Dragonfly Manager makes requests to external endpoints with disabled TLS authentication CVSS 4.0LOW 2.7
- TI-2026-19442 Dragonfly Manager Job API Allows Unauthenticated Access CVSS 4.0HIGH 8.9
- TI-2025-36906 Dragonfly did not enable authentication for some Manager’s endpoints CVSS 4.0HIGH 7.7
Sources
- CVE-2025-59410 · CVE Program
- CVE-2025-59410 · NVD
- FIRST EPSS
- GHSA-mcvp-rpgg-9273 · GitHub Advisory Database · CC BY 4.0
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