{"id":"CVE-2026-59595","kind":"vulnerability","aliases":["CVE-2026-59595"],"related":[],"title":"SipStack.cpp: unbounded recursion in header decoding allows remote denial of service","description":"In DecodeHeaderComponent of SipStack.cpp, there is a possible way to trigger stack exhaustion via unbounded mutual recursion due to a resource exhaustion. This could lead to remote denial of service with no additional execution privileges needed. User interaction is not needed for exploitation.","summary":"DecodeHeaderComponent in SipStack.cpp can recurse without limit, exhausting the stack. A remote attacker can crash the component with a crafted SIP message, and no privileges or user action are needed.","severity":"unknown","cvss":null,"epss":null,"exploited":false,"exploited_at":null,"products":[],"ecosystems":[],"tags":["other","sip","voip"],"not_affected_if":[],"how_to_check":null,"fix":null,"status":"open","published_at":"2026-11-10T20:19:30+00:00","first_seen_at":"2026-11-10T20:46:13+00:00","triaged_at":"2026-11-10T20:49:54+00:00","updated_at":"2026-11-10T20:49:54+00:00","category":"other","confidence":0.5,"triage":{"at":"2026-11-10T20:49:54Z","model":"claude-haiku-5-5","output":{"fix":"unknown","reach":"internet","title":"SipStack.cpp: unbounded recursion in header decoding allows remote denial of service","impact":"low","summary":"DecodeHeaderComponent in SipStack.cpp can recurse without limit, exhausting the stack. A remote attacker can crash the component with a crafted SIP message, and no privileges or user action are needed.","audience":"businesses","category":"other","nicknames":[],"who_cares":["sip","voip"],"confidence":0.5,"fix_status":"unknown","needs_auth":"no","worst_case":"Remote denial of service by crashing the SIP stack","analyst_note":"Identify the affected product and vendor for SipStack.cpp (likely an Android or AOSP component) and its fixed versions from the NVD entry or vendor bulletin.","how_to_check":"unknown","plain_action":"","product_name":"","needs_analyst":true,"not_affected_if":[],"who_is_affected":"unknown","user_interaction":"no","product_ecosystem":"","needs_special_setup":"unknown","severity_if_unknown":"high"},"cost_usd":0.000639,"input_tokens":4554,"output_tokens":367,"severity_before":"unknown"},"analyst_status":null,"analyst_note":null,"search":"'-2026':13A,16A '-59595':14A,17A 'action':48B 'addit':83C 'allow':7A 'attack':33B 'compon':37B 'could':74C 'craft':40B 'crash':35B 'cve':12A,15A 'decod':6A 'decodeheadercompon':21B,52C 'denial':9A,78C 'due':68C 'execut':84C 'exhaust':28B,63C,72C 'exploit':93C 'header':5A 'interact':88C 'lead':75C 'limit':27B 'messag':42B 'mutual':66C 'need':50B,86C,91C 'possibl':58C 'privileg':45B,85C 'recurs':3A,25B,67C 'remot':8A,32B,77C 'resourc':71C 'servic':11A,80C 'sip':19B,41B 'sipstack.cpp':1A,23B,54C 'stack':30B,62C 'trigger':61C 'unbound':2A,65C 'user':47B,87C 'via':64C 'voip':20B 'way':59C 'without':26B","nicknames":[],"mitigations":[],"who_affected":null,"tier":"C","verified":{},"analyst_revisit_at":null,"fix_status":"none","audience":"businesses","plain_action":null,"pkeys":[],"ptokens":[],"labels":["other","sip","unknown","voip"],"campaign_type":null,"search_a":"'-2026':13A,16A '-59595':14A,17A 'allow':7A 'cve':12A,15A 'decod':6A 'denial':9A 'header':5A 'recurs':3A 'remot':8A 'servic':11A 'sipstack.cpp':1A 'unbound':2A","search_b":"'action':48B 'attack':33B 'compon':37B 'craft':40B 'crash':35B 'decodeheadercompon':21B 'exhaust':28B 'limit':27B 'messag':42B 'need':50B 'privileg':45B 'recurs':25B 'remot':32B 'sip':19B,41B 'sipstack.cpp':23B 'stack':30B 'user':47B 'voip':20B 'without':26B","search_c":"'addit':83C 'could':74C 'decodeheadercompon':52C 'denial':78C 'due':68C 'execut':84C 'exhaust':63C,72C 'exploit':93C 'interact':88C 'lead':75C 'mutual':66C 'need':86C,91C 'possibl':58C 'privileg':85C 'recurs':67C 'remot':77C 'resourc':71C 'servic':80C 'sipstack.cpp':54C 'stack':62C 'trigger':61C 'unbound':65C 'user':87C 'via':64C 'way':59C","cause_entry":null,"cause_path":null,"disclosures_checked_at":null,"first_public_at":"2026-11-10T20:19:30+00:00","kev":null,"cvss_vector":null,"cvss_by":null,"poc_count":0,"sources":[{"source":"nvd","external_id":"CVE-2026-59595","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-59595","severity":null,"published_at":"2026-11-10T20:19:30+00:00","modified_at":"2026-11-10T20:19:30+00:00","first_seen_at":"2026-11-10T20:46:13+00:00","fetched_at":"2026-11-10T20:46:13+00:00","note":null}],"documents":[],"disclosures":[],"exploit_sources":[],"notice":"Free to read, with fair use of about 60 pages a minute. For higher limits or API access: sales@infrastack.ai"}