CVE-2025-59347 Dragonfly Manager makes requests to external endpoints with disabled TLS authentication
Attackers can perform Man-in-the-Middle attacks to inject invalid data into Dragonfly Manager, causing file integrity issues and denial of service.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- Available
What is CVE-2025-59347?
CVE-2025-59347 is a low-severity vulnerability in dragonflyoss dragonfly, published on 17 Sep 2025. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
Dragonfly is an open source P2P-based file distribution and image acceleration system. Prior to 2.1.0, The Manager disables TLS certificate verification in HTTP clients. The clients are not configurable, so users have no way to re-enable the verification. A Manager processes dozens of preheat jobs. An adversary performs a network-level Man-in-the-Middle attack, providing invalid data to the Manager. The Manager preheats with the wrong data, which later causes a denial of service and file integrity problems. This vulnerability is fixed in 2.1.0.
Weakness: CWE-295
Which versions are affected by CVE-2025-59347?
6 open source packages ship an affected version, including github.com/dragonflyoss/dragonfly and d7y.io/dragonfly/v2. It affects 1 product.
| Package | Affected | Fixed in |
|---|---|---|
github.com/dragonflyoss/dragonfly Go | All versions | None |
github.com/dragonflyoss/dragonfly Go | All versions | 2.1.0 |
github.com/dragonflyoss/dragonfly Go | All versions | 2.1.0 |
d7y.io/dragonfly/v2 Go | All versions | 2.1.0 |
d7y.io/dragonfly/v2 Go | All versions | 2.1.0 |
d7y.io/dragonfly/v2 Go | All versions | 2.1.0 |
Products include Linuxfoundation Dragonfly.
How do I fix CVE-2025-59347?
Upgrade github.com/dragonflyoss/dragonfly to 2.1.0 or later.
Is CVE-2025-59347 being exploited?
It is not confirmed as exploited in the wild, but public exploit code for CVE-2025-59347 exists.
Other vulnerabilities in dragonflyoss dragonfly
- CVE-2023-27584 Dragonfly2 vulnerable to hard coded cyptographic key
- CVE-2026-24124 Dragonfly Manager Job API Allows Unauthenticated Access
- CVE-2025-59345 Dragonfly did not enable authentication for some Manager’s endpoints
- CVE-2025-59353 Manager generates mTLS certificates for arbitrary IP addresses
- CVE-2025-59352 Dragonfly allows arbitrary file read and write on a peer machine
Sources
Also known as GHSA-98x5-jw98-6c97, GO-2025-3966.