Fedify has an Infinite loop and Blind SSRF found inside the Webfinger mechanism
Default status is the baseline for the product, each version can override it (e.g. patched versions marked unaffected).
| Vendor | Product | Default status | Versions | |||||||||||||||
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| dahlia | fedify | affected |
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| Vendor | Product | Versions |
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| Dahlia | Fedify | — |
| Source | ID | Title |
|---|---|---|
EUVD |
EUVD-2025-0153 | Fedify is a TypeScript library for building federated server apps powered by ActivityPub and other standards. This vulnerability allows a user to maneuver the Webfinger mechanism to perform a GET request to any internal resource on any Host, Port, URL combination regardless of present security mechanisms, and forcing the victim’s server into an infinite loop causing Denial of Service. Moreover, this issue can also be maneuvered into performing a Blind SSRF attack. This vulnerability is fixed in 1.0.14, 1.1.11, 1.2.11, and 1.3.4. |
Github GHSA |
GHSA-c59p-wq67-24wx | Infinite loop and Blind SSRF found inside the Webfinger mechanism in @fedify/fedify |
No CVSS v4.0
No CVSS v3.0
No CVSS v2
This CVE is not in the KEV list.
Exploit prediction score: < 1% (0.618% probability within 30 days)
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ssvc
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| Description | Fedify is a TypeScript library for building federated server apps powered by ActivityPub and other standards. This vulnerability allows a user to maneuver the Webfinger mechanism to perform a GET request to any internal resource on any Host, Port, URL combination regardless of present security mechanisms, and forcing the victim’s server into an infinite loop causing Denial of Service. Moreover, this issue can also be maneuvered into performing a Blind SSRF attack. This vulnerability is fixed in 1.0.14, 1.1.11, 1.2.11, and 1.3.4. | |
| Title | Fedify has an Infinite loop and Blind SSRF found inside the Webfinger mechanism | |
| Weaknesses | CWE-835 CWE-918 |
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| Metrics |
cvssV3_1
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