{"url":"http://public2.vulnerablecode.io/api/packages/1077751?format=json","purl":"pkg:deb/debian/coturn@4.6.1-1","type":"deb","namespace":"debian","name":"coturn","version":"4.6.1-1","qualifiers":{},"subpath":"","is_vulnerable":true,"next_non_vulnerable_version":"4.12.0-1","latest_non_vulnerable_version":"4.12.0-1","affected_by_vulnerabilities":[{"url":"http://public2.vulnerablecode.io/api/vulnerabilities/84346?format=json","vulnerability_id":"VCID-uhuv-w5us-yybz","summary":"Coturn is a free open source implementation of TURN and STUN Server. Prior to 4.10.0, the STUN/TURN attribute parsing functions in coturn perform unsafe pointer casts from uint8_t * to uint16_t * without alignment checks. When processing a crafted STUN message with odd-aligned attribute boundaries, this results in misaligned memory reads at ns_turn_msg.c. On ARM64 architectures (AArch64) with strict alignment enforcement, this causes a SIGBUS signal that immediately kills the turnserver process. An unauthenticated remote attacker can crash any ARM64 coturn deployment by sending a single crafted UDP packet. This vulnerability is fixed in 4.10.0.","references":[{"reference_url":"https://api.first.org/data/v1/epss?cve=CVE-2026-40613","reference_id":"","reference_type":"","scores":[{"value":"0.00283","scoring_system":"epss","scoring_elements":"0.52068","published_at":"2026-06-11T12:55:00Z"},{"value":"0.00283","scoring_system":"epss","scoring_elements":"0.52198","published_at":"2026-06-12T12:55:00Z"},{"value":"0.00283","scoring_system":"epss","scoring_elements":"0.52209","published_at":"2026-06-13T12:55:00Z"},{"value":"0.00283","scoring_system":"epss","scoring_elements":"0.52192","published_at":"2026-06-14T12:55:00Z"}],"url":"https://api.first.org/data/v1/epss?cve=CVE-2026-40613"},{"reference_url":"https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2026-40613","reference_id":"","reference_type":"","scores":[],"url":"https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2026-40613"},{"reference_url":"https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=1134577","reference_id":"1134577","reference_type":"","scores":[],"url":"https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=1134577"},{"reference_url":"https://github.com/coturn/coturn/security/advisories/GHSA-j662-9wcj-mf36","reference_id":"GHSA-j662-9wcj-mf36","reference_type":"","scores":[{"value":"7.5","scoring_system":"cvssv3.1","scoring_elements":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H"},{"value":"Track","scoring_system":"ssvc","scoring_elements":"SSVCv2/E:P/A:Y/T:P/P:M/B:A/M:M/D:T/2026-04-21T19:54:32Z/"}],"url":"https://github.com/coturn/coturn/security/advisories/GHSA-j662-9wcj-mf36"}],"fixed_packages":[{"url":"http://public2.vulnerablecode.io/api/packages/1077753?format=json","purl":"pkg:deb/debian/coturn@4.12.0-1","is_vulnerable":false,"affected_by_vulnerabilities":[],"resource_url":"http://public2.vulnerablecode.io/packages/pkg:deb/debian/coturn@4.12.0-1"}],"aliases":["CVE-2026-40613"],"risk_score":3.4,"exploitability":"0.5","weighted_severity":"6.8","resource_url":"http://public2.vulnerablecode.io/vulnerabilities/VCID-uhuv-w5us-yybz"},{"url":"http://public2.vulnerablecode.io/api/vulnerabilities/211483?format=json","vulnerability_id":"VCID-vyte-pfkt-rbaw","summary":"Coturn is a free open source implementation of TURN and STUN Server. Coturn is commonly configured to block loopback and internal ranges using \"denied-peer-ip\" and/or default loopback restrictions. CVE-2020-26262 addressed bypasses involving \"0.0.0.0\", \"[::1]\" and \"[::]\", but IPv4-mapped IPv6 is not covered. When sending a \"CreatePermission\" or \"ChannelBind\" request with the \"XOR-PEER-ADDRESS\" value of \"::ffff:127.0.0.1\", a successful response is received, even though \"127.0.0.0/8\" is blocked via \"denied-peer-ip\". The root cause is that, prior to the updated fix implemented in version 4.9.0, three functions in \"src/client/ns_turn_ioaddr.c\" do not check \"IN6_IS_ADDR_V4MAPPED\". \"ioa_addr_is_loopback()\" checks \"127.x.x.x\" (AF_INET) and \"::1\" (AF_INET6), but not \"::ffff:127.0.0.1.\" \"ioa_addr_is_zero()\" checks \"0.0.0.0\" and \"::\", but not \"::ffff:0.0.0.0.\" \"addr_less_eq()\" used by \"ioa_addr_in_range()\" for \"denied-peer-ip\" matching: when the range is AF_INET and the peer is AF_INET6, the comparison returns 0 without extracting the embedded IPv4. Version 4.9.0 contains an updated fix to address the bypass of the fix for CVE-2020-26262.","references":[{"reference_url":"https://api.first.org/data/v1/epss?cve=CVE-2026-27624","reference_id":"","reference_type":"","scores":[{"value":"0.00053","scoring_system":"epss","scoring_elements":"0.17096","published_at":"2026-06-11T12:55:00Z"},{"value":"0.00053","scoring_system":"epss","scoring_elements":"0.17256","published_at":"2026-06-12T12:55:00Z"},{"value":"0.00053","scoring_system":"epss","scoring_elements":"0.17273","published_at":"2026-06-13T12:55:00Z"},{"value":"0.00053","scoring_system":"epss","scoring_elements":"0.17246","published_at":"2026-06-14T12:55:00Z"}],"url":"https://api.first.org/data/v1/epss?cve=CVE-2026-27624"},{"reference_url":"https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2026-27624","reference_id":"","reference_type":"","scores":[],"url":"https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2026-27624"},{"reference_url":"https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=1129267","reference_id":"1129267","reference_type":"","scores":[],"url":"https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=1129267"}],"fixed_packages":[{"url":"http://public2.vulnerablecode.io/api/packages/1077753?format=json","purl":"pkg:deb/debian/coturn@4.12.0-1","is_vulnerable":false,"affected_by_vulnerabilities":[],"resource_url":"http://public2.vulnerablecode.io/packages/pkg:deb/debian/coturn@4.12.0-1"}],"aliases":["CVE-2026-27624"],"risk_score":null,"exploitability":"0.5","weighted_severity":"0.0","resource_url":"http://public2.vulnerablecode.io/vulnerabilities/VCID-vyte-pfkt-rbaw"}],"fixing_vulnerabilities":[],"risk_score":"3.4","resource_url":"http://public2.vulnerablecode.io/packages/pkg:deb/debian/coturn@4.6.1-1"}