CVE-2025-59349: Github.com/dragonflyoss/dragonfly Dragonfly's Directories Created Vulnerability
LOWCVE-2025-59349 is a LOW dragonfly's directories created vulnerability (CWE-732: Incorrect Permission Assignment for Critical Resource) affecting Github.com/dragonflyoss/dragonfly libraries in the Go ecosystem. The issue involves dragonfly's directories created via os.mkdirall are not checked for permissions. Remediation is available by upgrading affected packages to version 2.1.0.
CVE-2025-59349 at a Glance
How to Fix CVE-2025-59349
To remediate this vulnerability, upgrade all affected Github.com/dragonflyoss/dragonfly dependencies to a patched release. Both direct and transitive dependencies should be checked, as frameworks or security libraries may pull in vulnerable versions transitively.
Upgrade github.com/dragonflyoss/dragonfly to 2.1.0Upgrade d7y.io/dragonfly/v2 to 2.1.0Run the following command in your project directory to verify that all resolved dependencies use the patched release:
inspect dependencies for github.com/dragonflyoss/dragonflyHow to Check if You Are Affected
To determine whether your application is affected by CVE-2025-59349, inspect your project dependencies for Github.com/dragonflyoss/dragonfly:
inspect dependencies for github.com/dragonflyoss/dragonflyAnalyze the terminal output to locate any version of Github.com/dragonflyoss/dragonfly in your dependency tree. If any resolved version matches the vulnerable ranges listed in the table below (for example, versions earlier than 2.1.0), your application is affected.
Note: Verify declared build manifests and deployed runtime container environments.
Technical Details
Vulnerability Mechanism & Technical Analysis
This vulnerability is classified under CWE-732: Incorrect Permission Assignment for Critical Resource, where the product specifies permissions for a security-critical resource in a way that allows that resource to be read or modified by unintended actors. In Github.com/dragonflyoss/dragonfly, software state validation or input boundaries are circumvented during processing. Review the official source advisory statement below for specific affected components, classes, and reproduction details.
Source Advisory Statement
CVE-2025-59349 Affected Github.com/dragonflyoss/dragonfly Versions
2 component(s)| Product / Package | Ecosystem | Affected Versions | Fixed Version |
|---|---|---|---|
|
github.com/dragonflyoss/dragonfly
|
Go |
< 2.1.0
|
2.1.0
|
|
d7y.io/dragonfly/v2
|
Go |
< 2.1.0
|
2.1.0
|
References
Frequently Asked Questions
What is CVE-2025-59349?
Which Github.com/dragonflyoss/dragonfly versions are affected?
What version fixes CVE-2025-59349?
Is github.com/dragonflyoss/dragonfly affected?
Is d7y.io/dragonfly/v2 affected?
What CWE is associated with CVE-2025-59349?
How can I check Go dependencies for CVE-2025-59349?
Machine-readable OSV JSON
OSV v1.5 Schema
{
"schema_version" : "1.4.0",
"id" : "GHSA-8425-8r2f-mrv6",
"modified" : "2025-09-26T16:17:33Z",
"published" : "2025-09-17T19:55:25Z",
"aliases" : [ "CVE-2025-59349" ],
"summary" : "Dragonfly's directories created via os.MkdirAll are not checked for permissions",
"details" : "### Impact\n\nDragonFly2 uses the os.MkdirAll function to create certain directory paths with specific access permissions. This function does not perform any permission checks when a given directory path already exists. This allows a local attacker to create a directory to be used later by DragonFly2 with broad permissions before DragonFly2 does so, potentially allowing the attacker to tamper with the files.\n\nEve has unprivileged access to the machine where Alice uses DragonFly2. Eve watches the commands executed by Alice and introduces new directories/paths with 0777 permissions before DragonFly2 does so. Eve can then delete and forge files in that directory to change the results of further commands executed by Alice.\n\n### Patches\n\n- Dragonfy v2.1.0 and above.\n\n### Workarounds\n\nThere are no effective workarounds, beyond upgrading.\n\n### References\n\nA third party security audit was performed by Trail of Bits, you can see the [full report](https://github.com/dragonflyoss/dragonfly/blob/main/docs/security/dragonfly-comprehensive-report-2023.pdf).\n\nIf you have any questions or comments about this advisory, please email us at [dragonfly-maintainers@googlegroups.com](mailto:dragonfly-maintainers@googlegroups.com).",
"severity" : [ {
"type" : "CVSS_V4",
"score" : "CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:N/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N/E:P"
} ],
"affected" : [ {
"package" : {
"ecosystem" : "Go",
"name" : "github.com/dragonflyoss/dragonfly"
},
"ranges" : [ {
"type" : "ECOSYSTEM",
"events" : [ {
"introduced" : "0"
}, {
"fixed" : "2.1.0"
} ]
} ]
}, {
"package" : {
"ecosystem" : "Go",
"name" : "d7y.io/dragonfly/v2"
},
"ranges" : [ {
"type" : "ECOSYSTEM",
"events" : [ {
"introduced" : "0"
}, {
"fixed" : "2.1.0"
} ]
} ]
} ],
"references" : [ {
"type" : "WEB",
"url" : "https://github.com/dragonflyoss/dragonfly/security/advisories/GHSA-8425-8r2f-mrv6"
}, {
"type" : "ADVISORY",
"url" : "https://nvd.nist.gov/vuln/detail/CVE-2025-59349"
}, {
"type" : "PACKAGE",
"url" : "https://github.com/dragonflyoss/dragonfly"
}, {
"type" : "WEB",
"url" : "https://github.com/dragonflyoss/dragonfly/blob/main/docs/security/dragonfly-comprehensive-report-2023.pdf"
}, {
"type" : "WEB",
"url" : "https://pkg.go.dev/vuln/GO-2025-3964"
} ],
"database_specific" : {
"cwe_ids" : [ "CWE-276", "CWE-732" ],
"severity" : "LOW",
"github_reviewed" : true,
"github_reviewed_at" : "2025-09-17T19:55:25Z",
"nvd_published_at" : "2025-09-17T20:15:37Z"
}
}