CVE-2025-59352 — dragonfly
CVE-2025-59352 is a Path Traversal vulnerability in github.com/dragonflyoss/dragonfly. A fix is available for github.com/dragonflyoss/dragonfly — see the affected versions and patch details below.
Dragonfly allows arbitrary file read and write on a peer machine
Exploitation Status
No confirmed exploitation observed yet
- CISA assesses this as automatable — exploitation doesn’t require manual, per-target effort, which raises the odds of mass scanning and opportunistic attacks.
- CISA’s own triage has not observed active exploitation or public proof-of-concept code for this CVE as of its last assessment.
Exploitation and automatability from CISA’s SSVC triage for CVE-2025-59352.
EPSS Exploitation Probability
Probability of exploitation in the next 30 days, from FIRST.org EPSS.
Real-World Exposure
github.com/dragonflyoss/dragonfly🐹d7y.io/dragonfly/v2Real-time download stats are indexed for npm and PyPI packages. This vulnerability affects Go packages — download data is not available via public APIs for these ecosystems.
Description
Impact
A peer exposes the gRPC API and HTTP API for consumption by other peers. These APIs allow peers to send requests that force the recipient peer to create files in arbitrary file system locations, and to read arbitrary files. This allows peers to steal other peers’ secret data and to gain remote code execution (RCE) capabilities on the peer’s machine.
file, err := os.OpenFile(t.DataFilePath, os.O_RDWR, defaultFileMode)
if err != nil {
return 0, err
}
defer file.Close()
if _, err = file.Seek(req.Range.Start, io.SeekStart); err != nil {
return 0, err
}
n, err := io.Copy(file, io.LimitReader(req.Reader, req.Range.Length))
Patches
- Dragonfy v2.1.0 and above.
Workarounds
There are no effective workarounds, beyond upgrading.
References
A third party security audit was performed by Trail of Bits, you can see the full report.
If you have any questions or comments about this advisory, please email us at [email protected].
Affected Packages
| Ecosystem | Package | Vulnerable range | Fix |
|---|---|---|---|
| 🐹Go | github.com/dragonflyoss/dragonfly | all versions | 2.1.0go get github.com/dragonflyoss/dragonfly@v2.1.0 |
| 🐹Go | d7y.io/dragonfly/v2 | all versions | 2.1.0go get d7y.io/dragonfly/v2@v2.1.0 |
Affected Products
dragonflylinuxfoundationDetection & mitigation playbook
Open-source dependencyDetect
Scan your dependency tree (package-lock.json, pnpm-lock.yaml, requirements.txt, go.sum, etc.) for github.com/dragonflyoss/dragonfly, including transitive dependencies — a direct dependency you never call can still pull in a vulnerable version.
Fix
Update github.com/dragonflyoss/dragonfly to 2.1.0 or later, then make sure no transitive (indirect) dependency still pins the vulnerable range — O3 confirms CVE-2025-59352 is resolved across your whole dependency graph.
Workarounds
Resolve every user-supplied path to its canonical form and reject anything that escapes the intended directory, and run the component under an account that has no read or write access outside the directory it legitimately serves.
Frequently Asked Questions
Is CVE-2025-59352 in your dependencies?
Find it across Go, including transitive dependencies.