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CVE-2025-32948: PeerTube ActivityPub Playlist Creation Blind SSRF and DoS

• Severity: high (CVSS 7.5 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.6% probability of exploitation in the next 30 days
• Public exploit or detection template: yes
• Published: 2025-04-15 · updated 2026-06-17
• Weakness: CWE-843

Description

The vulnerability allows any attacker to cause the PeerTube server to stop functioning, or in special cases send requests to arbitrary URLs (Blind SSRF). Attackers can send ActivityPub activities to PeerTube's "inbox" endpoint. By abusing the "Create Activity" functionality, it is possible to create crafted playlists which will cause either denial of service or an attacker-controlled blind SSRF.

Affected products

• chocobozzz/peertube: before 7.1.1 — fixed in 7.1.1

How to fix

Upgrade to a fixed version: chocobozzz/peertube 7.1.1. Check the vendor advisory for mitigations.

References

• https://github.com/Chocobozzz/PeerTube/releases/tag/v7.1.1
• https://research.jfrog.com/vulnerabilities/peertube-activitypub-playlist-creation-blind-ssrf-dos/

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