CVE-2025-32947 PeerTube ActivityPub Crawl Infinite Loop DoS
Attackers can crash PeerTube servers by sending crafted ActivityPub activities that trigger an infinite loop in the inbox endpoint.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2025-32947?
CVE-2025-32947 is a high-severity denial of service vulnerability in framasoft:peertube, published on 15 Apr 2025. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
This vulnerability allows any attacker to cause the PeerTube server to stop responding to requests due to an infinite loop in the "inbox" endpoint when receiving crafted ActivityPub activities.
Weakness: CWE-835
Which versions are affected by CVE-2025-32947?
It affects 1 product.
Products include Framasoft Peertube.
How do I fix CVE-2025-32947?
No fix has been published for CVE-2025-32947 yet. Limit exposure of the affected software until one is available.
Upgrade, then put limits on request size, rate and nesting depth so one client cannot exhaust the service. More about Denial of service.
Is CVE-2025-32947 being exploited?
It is not confirmed as exploited in the wild, but public exploit code for CVE-2025-32947 exists.
Other vulnerabilities in framasoft:peertube
- CVE-2022-0881 Insecure Storage of Sensitive Information in chocobozzz/peertube
- CVE-2021-3780 Cross-site Scripting (XSS) - Stored in chocobozzz/peertube
- CVE-2025-32948 PeerTube ActivityPub Playlist Creation Blind SSRF and DoS
- CVE-2025-32944 PeerTube User Import Authenticated Persistent Denial of Service
- CVE-2025-32949 PeerTube User Import Authenticated Resource Exhaustion
Sources
Also known as GHSA-3w69-j4hp-rvh4.