Medium severity6.5NVD Advisory· Published Nov 5, 2026
CVE-2026-123096
CVE-2026-123096
Description
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.
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Affected products
1Patches
Vulnerability mechanics
References
4- github.com/anacrolix/torrent/blob/v1.61.0/tracker/http/http.gonvd
- github.com/anacrolix/torrent/commit/92ad51490479bb8b94720f964b1c67e5a1d68faanvd
- github.com/anacrolix/torrent/pull/1143nvd
- www.vulncheck.com/advisories/anacrolix-torrent-through-1.61.0-memory-exhaustion-via-unbounded-http-tracker-responsenvd
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