CVE-2026-48028 Mastodon: Removal of integrity-protected JSON entries from signed activities

Mastodon is a free, open-source social network server based on ActivityPub. Prior to 4.5.10, 4.4.17, and 4.3.23, Mastodon's normalization of incoming activities signed with Linked-Data Signatures does not sufficiently protect the activities from a certain class of spoofing, allowing threat actors...

CVE-2026-48028

Mastodon is a free, open-source social network server based on ActivityPub. Prior to 4.5.10, 4.4.17, and 4.3.23, Mastodon's normalization of incoming activities signed with Linked-Data Signatures does not sufficiently protect the activities from a certain class of spoofing, allowing threat actors...

CVE-2026-48028 Mastodon: Removal of integrity-protected JSON entries from signed activities

Mastodon is a free, open-source social network server based on ActivityPub. Prior to 4.5.10, 4.4.17, and 4.3.23, Mastodon's normalization of incoming activities signed with Linked-Data Signatures does not sufficiently protect the activities from a certain class of spoofing, allowing threat actors...

CVE-2026-46349

Mastodon is a free, open-source social network server based on ActivityPub. Prior to 4.5.10, 4.4.17, and 4.3.23, Mastodon's normalization of incoming activities signed with Linked-Data Signatures does not sufficiently protect the activities from a certain class of spoofing, allowing attackers to...

EUVD-2026-39054

Mastodon is a free, open-source social network server based on ActivityPub. Prior to 4.5.10, 4.4.17, and 4.3.23, Mastodon's normalization of incoming activities signed with Linked-Data Signatures does not sufficiently protect the activities from a certain class of spoofing, allowing attackers to...

PT-2026-52078

Name of the Vulnerable Software and Affected Versions Mastodon versions prior to 4.5.10 Mastodon versions prior to 4.4.17 Mastodon versions prior to 4.3.23 Description Mastodon is a free, open-source social network server based on ActivityPub. The normalization of incoming activities signed with...

EUVD-2026-36958

Unauthenticated Broken Access Control in Booking Activities = 1.16.48.1 versions...

CVE-2026-39525

Unauthenticated Broken Access Control in Booking Activities = 1.16.48.1 versions...

CVE-2026-39525 WordPress Booking Activities plugin <= 1.16.48.1 - Broken Access Control vulnerability

Unauthenticated Broken Access Control in Booking Activities = 1.16.48.1 versions...

CVE-2026-39525 WordPress Booking Activities plugin <= 1.16.48.1 - Broken Access Control vulnerability

Unauthenticated Broken Access Control in Booking Activities = 1.16.48.1 versions...

CVE-2026-39525

The CVE-2026-39525 entry documents an unauthenticated broken access control in the WordPress Booking Activities plugin, affected versions ≤ 1.16.48.1. The vulnerability allows unauthenticated actors to access or modify data via the plugin’s functionality (impact per CVSS: Confidentiality: None, I...

CVE-2026-39525: Missing Authorization

Unauthenticated Broken Access Control in Booking Activities = 1.16.48.1 versions...

Fedify 安全漏洞

Fedify is a TypeScript library developed by Hong Minhee. It is used to build federated server applications that support ActivityPub and other standards. Versions of Fedify prior to 1.9.11, 1.10.10, 2.0.18, 2.1.14, and 2.2.3 have security vulnerabilities. These vulnerabilities stem from attackers...

CVE-2026-21037

Improper input validation in Samsung Members prior to version 5.8.01.5 allows local attackers to access arbitrary URL and launch arbitrary activity with Samsung Members privilege...

CVE-2026-21037

Improper input validation in Samsung Members prior to version 5.8.01.5 allows local attackers to access arbitrary URL and launch arbitrary activity with Samsung Members privilege...

CVE-2026-21037

Improper input validation in Samsung Members prior to version 5.8.01.5 allows local attackers to access arbitrary URL and launch arbitrary activity with Samsung Members privilege...

CVE-2026-21037

Improper input validation in Samsung Members prior to version 5.8.01.5 allows local attackers to access arbitrary URL and launch arbitrary activity with Samsung Members privilege...

CVE-2026-21031

Technical details about CVE-2026-21031 are not publicly available in the provided documents. Monitor for updates from vendor advisories and NVD.

CVE-2025-48570

In multiple functions of PipTaskOrganizer.java, there is a possible way to launch an activity from the background due to a confused deputy. This could lead to local escalation of privilege with no additional execution privileges needed. User interaction is not needed for exploitation...

Incorrect Behavior Order: Validate Before Canonicalize

Overview @fedify/fedify is an An ActivityPub server framework Affected versions of this package are vulnerable to Incorrect Behavior Order: Validate Before Canonicalize through manipulation of JSON-LD document structure using keywords such as @graph, @included, and @reverse. An attacker can alter...