Incorrect Resource Transfer Between Spheres Affecting tor package, versions <0.4.9.12-0+deb13u2
Threat Intelligence
The probability is the direct output of the EPSS model, and conveys an overall sense of the threat of exploitation in the wild. The percentile measures the EPSS probability relative to all known EPSS scores. Note: This data is updated daily, relying on the latest available EPSS model version. Check out the EPSS documentation for more details.
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Test your applications- Snyk IDSNYK-ECHOLATEST-TOR-19652637
- published9 Sept 2026
- disclosed9 Sept 2026
Introduced: 9 Sep 2026
CVE-2026-87724 (opens in a new tab)How to fix?
Upgrade Echo:latest tor to version 0.4.9.12-0+deb13u2 or higher.
NVD Description
Note: Versions mentioned in the description apply only to the upstream tor package and not the tor package as distributed by Echo.
See How to fix? for Echo:latest relevant fixed versions and status.
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.