CVE-2026-87724

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Source
https://cve.org/CVERecord?id=CVE-2026-87724
Import Source
https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-87724.json
JSON Data
https://api.osv.dev/v1/vulns/CVE-2026-87724
Downstream
Published
2026-09-09T01:29:46Z
Modified
2026-09-10T03:48:31Z
Severity
  • 6.5 (Medium) CVSS_V3 - CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:L/A:H CVSS Calculator
Summary
[none]
Details

Tor before 0.4.9.12 interprets the CC_RESPONSE extension even when CC_REQUEST was not sent, which allows remote attackers to cause a denial of service (crash) because of corrupted congestion-control state. This is TROVE-2026-032.

Database specific 
{
    "cna_assigner": "mitre",
    "cwe_ids": [
        "CWE-669"
    ],
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/87xxx/CVE-2026-87724.json"
}
References

Affected packages

Git / gitlab.com/torproject/tor

Affected ranges

Type
GIT
Repo
https://gitlab.com/torproject/tor
Events
Introduced
1ee22f8f9a98719d32e5e4056013b68054b6448d
Fixed
78923280eed3eff6a77910bba59ecc1fa2244e02
Database specific
Show details 
{
    "extracted_events": [
        {
            "introduced": "0.4.9.3-alpha"
        },
        {
            "fixed": "0.4.9.12"
        }
    ],
    "source": "AFFECTED_FIELD"
}

Affected versions

tor-0.*
tor-0.4.9.10
tor-0.4.9.11
tor-0.4.9.3-alpha
tor-0.4.9.4-rc
tor-0.4.9.5
tor-0.4.9.6
tor-0.4.9.7
tor-0.4.9.8
tor-0.4.9.9

Database specific

source 
"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-87724.json"