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    2 vulnerabilities by anacrolix

    CVE-2026-123096 (GCVE-0-2026-123096)

    Vulnerability from nvd – Published: 2026-11-05 15:11 – Updated: 2026-11-05 15:11
    VLAI
    Title
    anacrolix/torrent through 1.61.0 Memory Exhaustion via Unbounded HTTP Tracker Response
    Summary
    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.
    Severity
    7.1 (High)
    CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N
    6.5 (Medium)
    CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
    CWE
    • CWE-770 - Allocation of Resources Without Limits or Throttling
    Assigner
    VulnCheck CNA under the mitre root
    CNA scorecard B 84/100 over 7605 records in the last 180 days details
    References
    Impacted products
    Vendor Product Version
    anacrolix torrent Affected: 0 , ≤ 1.61.0 (semver)
        cpe:2.3:a:torrentflux_project:torrentflux:*:*:*:*:*:*:*:*
    		Create a notification for this product.
    Date Public
    2026-10-19 00:00
    Credits
    Reload3d Matt Joiner (anacrolix)
    Show details on NVD website
    To clipboard 

    {
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          "defaultStatus": "unaffected",
          "packageURL": "pkg:golang/github.com/anacrolix/torrent",
          "product": "torrent",
          "repo": "https://github.com/anacrolix/torrent",
          "vendor": "anacrolix",
          "versions": [
            {
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              "status": "affected",
              "version": "0",
              "versionType": "semver"
            }
          ]
        }
      ],
      "cpeApplicability": [
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                }
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      ],
      "credits": [
        {
          "lang": "en",
          "type": "finder",
          "value": "Reload3d"
        },
        {
          "lang": "en",
          "type": "remediation developer",
          "value": "Matt Joiner (anacrolix)"
        }
      ],
      "datePublic": "2026-10-19T00:00:00.000Z",
      "descriptions": [
        {
          "lang": "en",
          "value": "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."
        }
      ],
      "metrics": [
        {
          "cvssV4_0": {
            "attackComplexity": "LOW",
            "attackRequirements": "NONE",
            "attackVector": "NETWORK",
            "baseScore": 7.1,
            "baseSeverity": "HIGH",
            "privilegesRequired": "NONE",
            "subAvailabilityImpact": "NONE",
            "subConfidentialityImpact": "NONE",
            "subIntegrityImpact": "NONE",
            "userInteraction": "PASSIVE",
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            "privilegesRequired": "NONE",
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            "userInteraction": "REQUIRED",
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          "url": "https://github.com/anacrolix/torrent"
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    "dateReserved": "2026-11-05T12:22:13.477Z",
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    CVE-2026-123096 (GCVE-0-2026-123096)

    Vulnerability from cvelistv5 – Published: 2026-11-05 15:11 – Updated: 2026-11-05 15:11
    VLAI
    Title
    anacrolix/torrent through 1.61.0 Memory Exhaustion via Unbounded HTTP Tracker Response
    Summary
    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.
    Severity
    7.1 (High)
    CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N
    6.5 (Medium)
    CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
    CWE
    • CWE-770 - Allocation of Resources Without Limits or Throttling
    Assigner
    VulnCheck CNA under the mitre root
    CNA scorecard B 84/100 over 7605 records in the last 180 days details
    References
    Impacted products
    Vendor Product Version
    anacrolix torrent Affected: 0 , ≤ 1.61.0 (semver)
        cpe:2.3:a:torrentflux_project:torrentflux:*:*:*:*:*:*:*:*
    		Create a notification for this product.
    Date Public
    2026-10-19 00:00
    Credits
    Reload3d Matt Joiner (anacrolix)
    Show details on NVD website
    To clipboard 

    {
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      "affected": [
        {
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          "defaultStatus": "unaffected",
          "packageURL": "pkg:golang/github.com/anacrolix/torrent",
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          "versions": [
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              "status": "affected",
              "version": "0",
              "versionType": "semver"
            }
          ]
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      ],
      "cpeApplicability": [
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        }
      ],
      "metrics": [
        {
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            "attackRequirements": "NONE",
            "attackVector": "NETWORK",
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            "baseSeverity": "HIGH",
            "privilegesRequired": "NONE",
            "subAvailabilityImpact": "NONE",
            "subConfidentialityImpact": "NONE",
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