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CVE-2026-73090
9.3 CRITICAL
- CVSS version (CVSS): 3.1
- Attack Vector (AV): Network (N)
- Attack Complexity (AC): Low (L)
- Privileges Required (PR): None (N)
- User Interaction (UI): None (N)
- Scope (S): Changed (C)
- Confidentiality (C): Low (L)
- Integrity (I): High (H)
- Availability (A): None (N)
- Modified Attack Vector (MAV): Network (N)
- Modified Attack Complexity (MAC): Low (L)
- Modified Privileges Required (MPR): None (N)
- Modified User Interaction (MUI): None (N)
- Modified Confidentiality (MC): Low (L)
- Modified Scope (MS): Changed (C)
- Modified Integrity (MI): High (H)
- Modified Availability (MA): None (N)
Activity log
- Created suggestion
PeerTube: Cross-origin remote video takeover via Update activity
PeerTube is an ActivityPub-federated video streaming platform. Prior to 8.2.2, processUpdateActivity and processUpdateVideo accept an ActivityPub Update containing a Video object without verifying that byActor.url is authorized for the host in videoObject.id, allowing a malicious federated server to rewrite another server's video metadata, visibility, media file, and HLS URLs. This issue is fixed in version 8.2.2.
References
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https://github.com/Chocobozzz/PeerTube/security/advisories/GHSA-g9p4-f7h8-hc86 x_refsource_CONFIRM
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https://github.com/Chocobozzz/PeerTube/releases/tag/v8.2.2 x_refsource_MISC
Affected products
PeerTube
- ==< 8.2.2
Matching in nixpkgs
pkgs.peertube
Free software to take back control of your videos
Package maintainers
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@phanirithvij Phani Rithvij <phanirithvij2000@gmail.com>
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@Prince213 Sizhe Zhao <prc.zhao@outlook.com>
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@ethancedwards8 Ethan Carter Edwards <ethan@ethancedwards.com>
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@eljamm Fedi Jamoussi <fedi.jamoussi@protonmail.ch>
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@stevenroose Steven Roose <github@stevenroose.org>
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@immae Ismaël Bouya <ismael@bouya.org>
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@Izorkin Yurii Izorkin <Izorkin@gmail.com>
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@haruki7049 haruki7049 <tontonkirikiri@gmail.com>