CVSS 4.0
5.5 mediumCVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N/E:PCVE-2025-59348
Medium (5.5) in linuxfoundation dragonfly. EPSS 0.4% chance of exploitation in the next 30 days. Fixed in github.com/dragonflyoss/dragonfly 2.1.0.
Dragonfly is an open source P2P-based file distribution and image acceleration system. Prior to 2.1.0, the processPieceFromSource method does not update the structure’s usedTraffic field, because an uninitialized variable n is used as a guard to the AddTraffic method call, instead of the result.Size variable. A task is processed by a peer. The usedTraffic metadata is not updated during the processing. Rate limiting is incorrectly applied, leading to a denial-of-service condition for the peer. This vulnerability is fixed in 2.1.0.
Severity
CVSS 3.1
7.5 highCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H- EPSS
- 0.4% chance of exploitation in the next 30 days; higher than 29% of CVEs (scores of 2026-10-31)
- CWE
- CWE-457
- Published
- Modified
- Record from
- the NVD, synced
Affected
- linuxfoundation:dragonfly
Packages (OSV)
| Advisory | Ecosystem | Package | Affected | Fixed in |
|---|---|---|---|---|
| GHSA-2qgr-gfvj-qpcr | Go | github.com/dragonflyoss/dragonfly | <2.1.0 | 2.1.0 |
| GHSA-2qgr-gfvj-qpcr | Go | d7y.io/dragonfly/v2 | <2.1.0 | 2.1.0 |
| GO-2025-3963 | Go | d7y.io/dragonfly/v2 | <2.1.0 | 2.1.0 |
| GO-2025-3963 | Go | github.com/dragonflyoss/dragonfly | all versions | no fix published |