{"id":"CVE-2026-106806","aliases":["EUVD-2026-115352","GHSA-c4rp-26v8-cm35"],"status":"published","title":"A memory exhaustion issue exists in Open5GS v2.8.0 in the HTTP/2 SBI server. Repeated header...","description":"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 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.","severity":{"version":"3.1","score":7.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","level":"high","assessor":"adp","from":"cve"},"epss":{"day":"2026-11-12","score":0.00436,"percentile":0.38389,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-400"],"published":"2026-11-02T00:00:00Z","modified":"2026-11-05T16:34:18Z","references":[{"url":"https://github.com/open5gs/open5gs/issues/4788","tags":["exploit","report"]},{"url":"https://github.com/open5gs/open5gs/commit/76f15375ead1b2db09193458e56640da0a86c255","tags":["fix"]},{"url":"https://gist.github.com/hackeryounow/c923fad9de83011004bd7d078b817dc0","tags":["web"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-106806","tags":["advisory"]},{"url":"https://github.com/advisories/GHSA-c4rp-26v8-cm35"},{"url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/106xxx/CVE-2026-106806.json","tags":["advisory"]}],"sources":{"cve":[{"id":"CVE-2026-106806","description":"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 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.","status":"published","published":"2026-11-02T00:00:00Z","modified":"2026-11-05T16:34:18.009Z","cvss":[{"version":"3.1","score":7.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","level":"high","assessor":"adp"}],"cwes":["CWE-400"],"updated_at":"2026-11-05T17:53:58.925122Z"}],"euvd":[{"id":"EUVD-2026-115352","description":"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 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.","status":"published","published":"2026-11-02T00:00:00Z","modified":"2026-11-05T16:34:18Z","cvss":[{"version":"3.1","score":7.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","level":"high"}],"updated_at":"2026-11-05T18:00:57.863749Z"}],"ghsa":[{"id":"GHSA-c4rp-26v8-cm35","title":"A memory exhaustion issue exists in Open5GS v2.8.0 in the HTTP/2 SBI server. Repeated header...","description":"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 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.","status":"published","published":"2026-11-02T18:32:28Z","modified":"2026-11-05T18:32:19Z","cvss":[{"version":"3.1","score":7.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","level":"high"}],"cwes":["CWE-400"],"updated_at":"2026-11-05T18:55:24.943828Z"}],"nvd":[{"id":"CVE-2026-106806","description":"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 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.","status":"published","published":"2026-11-02T18:18:33.97Z","modified":"2026-11-05T17:17:34.73Z","cvss":[{"version":"3.1","score":7.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","level":"high","assessor":"secondary"}],"cwes":["CWE-400"],"updated_at":"2026-11-05T19:56:13.251598Z"}],"osv":[{"id":"CVE-2026-106806","description":"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 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.","status":"published","published":"2026-11-02T00:00:00Z","modified":"2026-11-07T07:03:48.481392436Z","cvss":[{"version":"3.1","score":7.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","level":"high"}],"updated_at":"2026-11-07T03:07:59.958523Z"}]}}