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CVE-2026-77640

🗓️ 20 Aug 2026 21:02:36Reported by mitreType 
cve
 cve
🔗 web.nvd.nist.gov👁 50 Views

Tor before 0.4.9.9 infinite loop decompressing truncated zlib/gzip streams with done=1.

Related
Detection
Affected
Refs
ReporterTitlePublishedViews
Family
cvelist
Cvelist
CVE-2026-77640
20 Aug 202621:02
–cvelist
debiancve
Debian CVE
CVE-2026-77640
20 Aug 202621:02
–debiancve
euvd
EUVD
EUVD-2026-63650
20 Aug 202621:02
–euvd
fedora
Fedora
[SECURITY] Fedora 43 Update: tor-0.4.9.14-1.fc43
17 Oct 202601:33
–fedora
fedora
Fedora
[SECURITY] Fedora 44 Update: tor-0.4.9.14-1.fc44
17 Oct 202601:07
–fedora
nessus
Tenable Nessus
Fedora 43 : tor (2026-8a3e460f1e)
17 Oct 202600:00
–nessus
nessus
Tenable Nessus
Fedora 44 : tor (2026-f51af3db87)
17 Oct 202600:00
–nessus
nessus
Tenable Nessus
Linux Distros Unpatched Vulnerability : CVE-2026-77640
21 Aug 202600:00
–nessus
mend
Mend
CVE-2026-77640
20 Aug 202621:02
–mend
mageia
Mageia
Updated tor packages fix security vulnerabilities
8 Sep 202602:47
–mageia
Rows per page
NVD
Vulners
CNA
Node
torprojecttorRange<0.4.9.9
[
  {
    "defaultStatus": "unaffected",
    "product": "Tor",
    "vendor": "torproject",
    "versions": [
      {
        "lessThan": "0.4.9.9",
        "status": "affected",
        "version": "0.2.6.1-alpha",
        "versionType": "custom"
      }
    ]
  }
]

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18 Oct 2026 20:10Current
6Medium risk
Vulners AI Score6
CVSS 3.13.7 - 5.3
EPSS0.00378
SSVC
50