Mastodon is a free, open-source social network server based on ActivityPub. Starting in version 4.2.0-beta1 and prior to version 4.2.0-rc2, by crafting specific input, attackers can inject arbitrary data into HTTP requests issued by Mastodon. This can be used to perform confused deputy attacks if the server configuration includes `ALLOWED_PRIVATE_ADDRESSES` to allow access to local exploitable services. Version 4.2.0-rc2 has a patch for the issue.
History

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cve-icon MITRE

Status: PUBLISHED

Assigner: GitHub_M

Published: 2023-09-19T15:53:39.685Z

Updated: 2024-08-02T19:23:38.545Z

Reserved: 2023-09-08T20:57:45.573Z

Link: CVE-2023-42450

cve-icon Vulnrichment

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cve-icon NVD

Status : Analyzed

Published: 2023-09-19T16:15:12.897

Modified: 2024-02-16T20:35:15.717

Link: CVE-2023-42450

cve-icon Redhat

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