CVE-2026-45705

{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2026-45705", "assignerOrgId": "a0819718-46f1-4df5-94e2-005712e83aaa", "state": "PUBLISHED", "assignerShortName": "GitHub_M", "dateReserved": "2026-05-13T04:38:01.165Z", "datePublished": "2026-08-04T23:16:31.543Z", "dateUpdated": "2026-08-05T13:39:43.972Z"}, "containers": {"cna": {"title": "OpenSIPS: OOB Read in Multipart Body Boundary Parsing", "problemTypes": [{"descriptions": [{"cweId": "CWE-125", "lang": "en", "description": "CWE-125: Out-of-bounds Read", "type": "CWE"}]}], "metrics": [{"cvssV3_1": {"attackComplexity": "LOW", "attackVector": "NETWORK", "availabilityImpact": "LOW", "baseScore": 5.3, "baseSeverity": "MEDIUM", "confidentialityImpact": "NONE", "integrityImpact": "NONE", "privilegesRequired": "NONE", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L", "version": "3.1"}}], "references": [{"name": "https://github.com/OpenSIPS/opensips/security/advisories/GHSA-chxf-9368-fqcp", "tags": ["x_refsource_CONFIRM"], "url": "https://github.com/OpenSIPS/opensips/security/advisories/GHSA-chxf-9368-fqcp"}, {"name": "https://github.com/OpenSIPS/opensips/commit/4d23613b65579b073784a07a65d3bf52443a4efb", "tags": ["x_refsource_MISC"], "url": "https://github.com/OpenSIPS/opensips/commit/4d23613b65579b073784a07a65d3bf52443a4efb"}, {"name": "https://github.com/OpenSIPS/opensips/commit/5f103effaf5f372cccffe0b138f16998eba12668", "tags": ["x_refsource_MISC"], "url": "https://github.com/OpenSIPS/opensips/commit/5f103effaf5f372cccffe0b138f16998eba12668"}], "affected": [{"vendor": "OpenSIPS", "product": "opensips", "versions": [{"version": ">= 3.4.0, < 3.6.6", "status": "affected"}, {"version": ">= 4.0.0-beta, < 4.0.0-rc1", "status": "affected"}]}], "providerMetadata": {"orgId": "a0819718-46f1-4df5-94e2-005712e83aaa", "shortName": "GitHub_M", "dateUpdated": "2026-08-04T23:16:31.543Z"}, "descriptions": [{"lang": "en", "value": "OpenSIPS is a Session Initiation Protocol (SIP) server implementation. In versions prior to 3.6.6 and 4.0.0-rc1, the find_line_delimiter() function in the multipart body parser performs an out-of-bounds read via strncmp() when searching for MIME boundary delimiters. After finding a -- pattern near the end of the body, the function compares delimiter.len bytes (typically 20-70) starting from a position at or past the logical end of the body buffer, reading past the body boundary. The bug triggers when a SIP message has Content-Type: multipart/mixed with a boundary parameter and its body contains -- within two to three bytes of the body's end without being followed by the actual boundary delimiter. This issue has been fixed in versions 3.6.6 and 4.0.0-rc1."}], "source": {"advisory": "GHSA-chxf-9368-fqcp", "discovery": "UNKNOWN"}}, "adp": [{"references": [{"url": "https://github.com/OpenSIPS/opensips/security/advisories/GHSA-chxf-9368-fqcp", "tags": ["exploit"]}], "metrics": [{"other": {"type": "ssvc", "content": {"timestamp": "2026-08-05T13:39:14.301461Z", "id": "CVE-2026-45705", "options": [{"Exploitation": "poc"}, {"Automatable": "no"}, {"Technical Impact": "partial"}], "role": "CISA Coordinator", "version": "2.0.3"}}}], "title": "CISA ADP Vulnrichment", "providerMetadata": {"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "shortName": "CISA-ADP", "dateUpdated": "2026-08-05T13:39:43.972Z"}}]}}

{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2026-45705", "assignerOrgId": "a0819718-46f1-4df5-94e2-005712e83aaa", "state": "PUBLISHED", "assignerShortName": "GitHub_M", "dateReserved": "2026-05-13T04:38:01.165Z", "datePublished": "2026-08-04T23:16:31.543Z", "dateUpdated": "2026-08-05T13:39:43.972Z"}, "containers": {"cna": {"title": "OpenSIPS: OOB Read in Multipart Body Boundary Parsing", "problemTypes": [{"descriptions": [{"cweId": "CWE-125", "lang": "en", "description": "CWE-125: Out-of-bounds Read", "type": "CWE"}]}], "metrics": [{"cvssV3_1": {"attackComplexity": "LOW", "attackVector": "NETWORK", "availabilityImpact": "LOW", "baseScore": 5.3, "baseSeverity": "MEDIUM", "confidentialityImpact": "NONE", "integrityImpact": "NONE", "privilegesRequired": "NONE", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L", "version": "3.1"}}], "references": [{"name": "https://github.com/OpenSIPS/opensips/security/advisories/GHSA-chxf-9368-fqcp", "tags": ["x_refsource_CONFIRM"], "url": "https://github.com/OpenSIPS/opensips/security/advisories/GHSA-chxf-9368-fqcp"}, {"name": "https://github.com/OpenSIPS/opensips/commit/4d23613b65579b073784a07a65d3bf52443a4efb", "tags": ["x_refsource_MISC"], "url": "https://github.com/OpenSIPS/opensips/commit/4d23613b65579b073784a07a65d3bf52443a4efb"}, {"name": "https://github.com/OpenSIPS/opensips/commit/5f103effaf5f372cccffe0b138f16998eba12668", "tags": ["x_refsource_MISC"], "url": "https://github.com/OpenSIPS/opensips/commit/5f103effaf5f372cccffe0b138f16998eba12668"}], "affected": [{"vendor": "OpenSIPS", "product": "opensips", "versions": [{"version": ">= 3.4.0, < 3.6.6", "status": "affected"}, {"version": ">= 4.0.0-beta, < 4.0.0-rc1", "status": "affected"}]}], "providerMetadata": {"orgId": "a0819718-46f1-4df5-94e2-005712e83aaa", "shortName": "GitHub_M", "dateUpdated": "2026-08-04T23:16:31.543Z"}, "descriptions": [{"lang": "en", "value": "OpenSIPS is a Session Initiation Protocol (SIP) server implementation. In versions prior to 3.6.6 and 4.0.0-rc1, the find_line_delimiter() function in the multipart body parser performs an out-of-bounds read via strncmp() when searching for MIME boundary delimiters. After finding a -- pattern near the end of the body, the function compares delimiter.len bytes (typically 20-70) starting from a position at or past the logical end of the body buffer, reading past the body boundary. The bug triggers when a SIP message has Content-Type: multipart/mixed with a boundary parameter and its body contains -- within two to three bytes of the body's end without being followed by the actual boundary delimiter. This issue has been fixed in versions 3.6.6 and 4.0.0-rc1."}], "source": {"advisory": "GHSA-chxf-9368-fqcp", "discovery": "UNKNOWN"}}, "adp": [{"title": "CISA ADP Vulnrichment", "metrics": [{"other": {"type": "ssvc", "content": {"id": "CVE-2026-45705", "role": "CISA Coordinator", "options": [{"Exploitation": "poc"}, {"Automatable": "no"}, {"Technical Impact": "partial"}], "version": "2.0.3", "timestamp": "2026-08-05T13:39:14.301461Z"}}}], "references": [{"url": "https://github.com/OpenSIPS/opensips/security/advisories/GHSA-chxf-9368-fqcp", "tags": ["exploit"]}], "providerMetadata": {"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "shortName": "CISA-ADP", "dateUpdated": "2026-08-05T13:39:40.111Z"}}]}}

{"affected": [{"affectedData": [{"product": "opensips", "vendor": "OpenSIPS", "versions": [{"status": "affected", "version": ">= 3.4.0, < 3.6.6"}, {"status": "affected", "version": ">= 4.0.0-beta, < 4.0.0-rc1"}]}], "source": "security-advisories@github.com"}], "cveTags": [], "descriptions": [{"lang": "en", "value": "OpenSIPS is a Session Initiation Protocol (SIP) server implementation. In versions prior to 3.6.6 and 4.0.0-rc1, the find_line_delimiter() function in the multipart body parser performs an out-of-bounds read via strncmp() when searching for MIME boundary delimiters. After finding a -- pattern near the end of the body, the function compares delimiter.len bytes (typically 20-70) starting from a position at or past the logical end of the body buffer, reading past the body boundary. The bug triggers when a SIP message has Content-Type: multipart/mixed with a boundary parameter and its body contains -- within two to three bytes of the body's end without being followed by the actual boundary delimiter. This issue has been fixed in versions 3.6.6 and 4.0.0-rc1."}], "id": "CVE-2026-45705", "lastModified": "2026-09-08T20:41:31.497", "metrics": {"cvssMetricV31": [{"cvssData": {"attackComplexity": "LOW", "attackVector": "NETWORK", "availabilityImpact": "LOW", "baseScore": 5.3, "baseSeverity": "MEDIUM", "confidentialityImpact": "NONE", "integrityImpact": "NONE", "privilegesRequired": "NONE", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L", "version": "3.1"}, "exploitabilityScore": 3.9, "impactScore": 1.4, "source": "security-advisories@github.com", "type": "Secondary"}], "ssvcV203": [{"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "ssvcData": {"id": "CVE-2026-45705", "options": [{"exploitation": "poc"}, {"automatable": "no"}, {"technicalImpact": "partial"}], "role": "CISA Coordinator", "timestamp": "2026-08-05T13:39:14.301461Z", "version": "2.0.3"}}]}, "published": "2026-08-05T00:16:59.890", "references": [{"source": "security-advisories@github.com", "url": "https://github.com/OpenSIPS/opensips/commit/4d23613b65579b073784a07a65d3bf52443a4efb"}, {"source": "security-advisories@github.com", "url": "https://github.com/OpenSIPS/opensips/commit/5f103effaf5f372cccffe0b138f16998eba12668"}, {"source": "security-advisories@github.com", "url": "https://github.com/OpenSIPS/opensips/security/advisories/GHSA-chxf-9368-fqcp"}, {"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "url": "https://github.com/OpenSIPS/opensips/security/advisories/GHSA-chxf-9368-fqcp"}], "sourceIdentifier": "security-advisories@github.com", "vulnStatus": "Awaiting Analysis", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-125"}], "source": "security-advisories@github.com", "type": "Secondary"}]}

{}

{"affected": [{"configurations": [{"platform": null, "status": "affected", "versions": {"scheme": "semver", "value": "[3.4.0,3.6.6)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "semver", "value": "[4.0.0-beta,4.0.0-rc1)"}}], "enrichment": {"confidence": 100.0, "confidence_source": "matching", "scores": [{"score": 100.0, "source": "matching"}]}, "original": {"product": "opensips", "source": "cna", "vendor": "OpenSIPS"}, "product": "opensips", "vendor": "opensips"}], "created": "2026-08-05T00:15:04.472851+00:00", "updated": "2026-08-05T00:30:05.733226+00:00", "vendors": ["opensips", "opensips$PRODUCT$opensips"]}