{"id":"CVE-2026-106806","title":"A memory exhaustion issue exists in Open5GS v2.8.0 in the HTTP/2 SBI server","summary":"A memory exhaustion issue exists in Open5GS v2.8.0 in the HTTP/2 SBI server. Repeated header names cause previously allocated header strings to be leaked, and HPACK compression allows an unauthenticated remote attacker to trigger tens of…","severity":"high","cvss":7.5,"cvssVector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","cvssSource":"adp","ssvc":{"exploitation":"poc","automatable":"yes","technicalImpact":"partial","timestamp":"2026-11-05T16:33:27.295265Z"},"exploitAvailable":true,"published":"2026-11-02","updated":"2026-11-05","sourceUpdated":"2026-11-05T16:34:18.009Z","source":"CVEORG","sourceUrl":"https://www.cve.org/CVERecord?id=CVE-2026-106806","references":[{"url":"https://github.com/open5gs/open5gs/issues/4788"},{"url":"https://github.com/open5gs/open5gs/commit/76f15375ead1b2db09193458e56640da0a86c255"},{"url":"https://gist.github.com/hackeryounow/c923fad9de83011004bd7d078b817dc0"}],"tags":["cve.org","exploit-available"],"epss":0.00436,"epssPercentile":0.38148,"ingestedAt":"2026-11-05T22:38:31.365Z","slug":"CVE-2026-106806","body":"## Overview\n\nA memory exhaustion issue exists in Open5GS v2.8.0 in the HTTP/2 SBI server. Repeated header names cause previously allocated header strings to be leaked, and HPACK compression allows an unauthenticated remote attacker to trigger tens of thousands of duplicate headers with a small request. Repeated crafted requests can cause persistent heap growth, exhaust process memory, and terminate the affected Open5GS network function, resulting in denial of service.\n\n## Remediation\n\nRefer to the linked advisories for vendor-supplied fixes and affected version ranges.","depth":"midnight","depthScore":53,"depthScoreParts":{"impact":41.3,"likelihood":0.1,"exploitation":12,"ransomware":0},"changes":[]}