CVE-2025-59348

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.

CVSS v3 7.5 HIGH

7.5^/10

CVSS v3 : HIGH

Vector :

Exploitability : 3.9 / Impact : 3.6

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required NONE

User Interaction NONE

Confidentiality Impact NONE

Integrity Impact NONE

Availability Impact HIGH

Scope UNCHANGED

References

Link	Resource
https://github.com/dragonflyoss/dragonfly/blob/main/docs/security/dragonfly-comprehensive-report-2023.pdf	Product
https://github.com/dragonflyoss/dragonfly/security/advisories/GHSA-2qgr-gfvj-qpcr	Patch Third Party Advisory

Configurations

Configuration 1 (hide)

cpe:2.3:a:linuxfoundation:dragonfly:*:*:*:*:*:go:*:*

History

18 Sep 2025, 20:18

Type	Values Removed	Values Added
References	~~() https://github.com/dragonflyoss/dragonfly/blob/main/docs/security/dragonfly-comprehensive-report-2023.pdf -~~	() https://github.com/dragonflyoss/dragonfly/blob/main/docs/security/dragonfly-comprehensive-report-2023.pdf - Product
References	~~() https://github.com/dragonflyoss/dragonfly/security/advisories/GHSA-2qgr-gfvj-qpcr -~~	() https://github.com/dragonflyoss/dragonfly/security/advisories/GHSA-2qgr-gfvj-qpcr - Patch, Third Party Advisory
First Time		Linuxfoundation Linuxfoundation dragonfly
CVSS	v2 : ~~unknown~~ v3 : ~~unknown~~	v2 : unknown v3 : 7.5
CPE		cpe:2.3:a:linuxfoundation:dragonfly::::::go::*

17 Sep 2025, 20:15

Type	Values Removed	Values Added
New CVE

Information

Published : 2025-09-17 20:15

Updated : 2025-09-18 20:18

NVD link : CVE-2025-59348

Mitre link : CVE-2025-59348

CVE.ORG link : CVE-2025-59348

JSON object : View

Products Affected

linuxfoundation

dragonfly

CWE

CWE-457

Use of Uninitialized Variable

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