HIGH 7.1 NVD
CVE-2026-123096
anacrolix/torrent through 1.61.0 contains a memory exhaustion vulnerability in the tracker/http package that allows malicious trackers to crash clients by retur
anacrolix/torrent through 1.61.0 contains a memory exhaustion vulnerability in the tracker/http package that allows malicious trackers to crash clients by returning unbounded responses. Attackers controlling an HTTP tracker in a torrent file or magnet link can return huge or gzip-compressed announce or scrape responses that Client.Announce and Client.Scrape buffer without limits, exhausting process memory.
References
- https://github.com/anacrolix/torrent
- https://github.com/anacrolix/torrent/blob/v1.61.0/tracker/http/http.go#L114-L126
- https://github.com/anacrolix/torrent/commit/92ad51490479bb8b94720f964b1c67e5a1d68faa
- https://github.com/anacrolix/torrent/pull/1143
- https://www.vulncheck.com/advisories/anacrolix-torrent-through-1.61.0-memory-exhaustion-vi
This high severity vulnerability with a CVSS score of 7.1 was published on 2026-11-05 via NVD.
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