{"apiVersion":"1.0","identifier":"CVE-2026-77639","description":"Tor before 0.4.9.9 was prone to a compression bomb bypass where an attacker could concatenate many gzip or zlib sub-streams, each just under the per-stream detection threshold, to avoid the compression bomb check entirely. This is TROVE-2026-022.","publishedAt":"2026-08-20T21:17:11","lastModifiedAt":"2026-08-21T21:17:07","sourceUrl":"https://nvd.nist.gov/vuln/detail/CVE-2026-77639","cvssScore":5.3,"cvssVector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L","epssProbability":0.00246,"riskScore":0.54,"affectedProduct":"Tor","affectedVersions":"<0.4.9.9","vulnerabilityType":"Critical software","operatingSystems":[],"links":{"self":"https://www.redsauce.net/api/cves/CVE-2026-77639","webPages":{"es":"https://www.redsauce.net/es/cves/CVE-2026-77639","en":"https://www.redsauce.net/en/cves/CVE-2026-77639","fr":"https://www.redsauce.net/fr/cves/CVE-2026-77639","pt":"https://www.redsauce.net/pt/cves/CVE-2026-77639","de":"https://www.redsauce.net/de/cves/CVE-2026-77639","sk":"https://www.redsauce.net/sk/cves/CVE-2026-77639","el":"https://www.redsauce.net/el/cves/CVE-2026-77639"},"source":"https://nvd.nist.gov/vuln/detail/CVE-2026-77639"}}