CVE-2023-45139

{"dataType": "CVE_RECORD", "dataVersion": "5.1", "cveMetadata": {"cveId": "CVE-2023-45139", "assignerOrgId": "a0819718-46f1-4df5-94e2-005712e83aaa", "state": "PUBLISHED", "assignerShortName": "GitHub_M", "dateReserved": "2023-10-04T16:02:46.329Z", "datePublished": "2024-01-10T16:03:08.770Z", "dateUpdated": "2025-06-03T14:27:45.728Z"}, "containers": {"cna": {"title": "fonttools XML External Entity Injection (XXE) Vulnerability", "problemTypes": [{"descriptions": [{"cweId": "CWE-611", "lang": "en", "description": "CWE-611: Improper Restriction of XML External Entity Reference", "type": "CWE"}]}], "metrics": [{"cvssV3_1": {"attackComplexity": "LOW", "attackVector": "NETWORK", "availabilityImpact": "NONE", "baseScore": 7.5, "baseSeverity": "HIGH", "confidentialityImpact": "HIGH", "integrityImpact": "NONE", "privilegesRequired": "NONE", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N", "version": "3.1"}}], "references": [{"name": "https://github.com/fonttools/fonttools/security/advisories/GHSA-6673-4983-2vx5", "tags": ["x_refsource_CONFIRM"], "url": "https://github.com/fonttools/fonttools/security/advisories/GHSA-6673-4983-2vx5"}, {"name": "https://github.com/fonttools/fonttools/commit/9f61271dc1ca82ed91f529b130fe5dc5c9bf1f4c", "tags": ["x_refsource_MISC"], "url": "https://github.com/fonttools/fonttools/commit/9f61271dc1ca82ed91f529b130fe5dc5c9bf1f4c"}, {"name": "https://github.com/fonttools/fonttools/releases/tag/4.43.0", "tags": ["x_refsource_MISC"], "url": "https://github.com/fonttools/fonttools/releases/tag/4.43.0"}, {"url": "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/VY63B4SGY4QOQGUXMECRGD6K3YT3GJ75/"}, {"url": "http://www.openwall.com/lists/oss-security/2024/03/09/1"}, {"url": "http://www.openwall.com/lists/oss-security/2024/03/08/2"}], "affected": [{"vendor": "fonttools", "product": "fonttools", "versions": [{"version": ">= 4.28.2, < 4.43.0", "status": "affected"}]}], "providerMetadata": {"orgId": "a0819718-46f1-4df5-94e2-005712e83aaa", "shortName": "GitHub_M", "dateUpdated": "2024-05-01T18:06:54.318Z"}, "descriptions": [{"lang": "en", "value": "fontTools is a library for manipulating fonts, written in Python. The subsetting module has a XML External Entity Injection (XXE) vulnerability which allows an attacker to resolve arbitrary entities when a candidate font (OT-SVG fonts), which contains a SVG table, is parsed. This allows attackers to include arbitrary files from the filesystem fontTools is running on or make web requests from the host system. This vulnerability has been patched in version 4.43.0."}], "source": {"advisory": "GHSA-6673-4983-2vx5", "discovery": "UNKNOWN"}}, "adp": [{"providerMetadata": {"orgId": "af854a3a-2127-422b-91ae-364da2661108", "shortName": "CVE", "dateUpdated": "2024-08-02T20:14:19.258Z"}, "title": "CVE Program Container", "references": [{"name": "https://github.com/fonttools/fonttools/security/advisories/GHSA-6673-4983-2vx5", "tags": ["x_refsource_CONFIRM", "x_transferred"], "url": "https://github.com/fonttools/fonttools/security/advisories/GHSA-6673-4983-2vx5"}, {"name": "https://github.com/fonttools/fonttools/commit/9f61271dc1ca82ed91f529b130fe5dc5c9bf1f4c", "tags": ["x_refsource_MISC", "x_transferred"], "url": "https://github.com/fonttools/fonttools/commit/9f61271dc1ca82ed91f529b130fe5dc5c9bf1f4c"}, {"name": "https://github.com/fonttools/fonttools/releases/tag/4.43.0", "tags": ["x_refsource_MISC", "x_transferred"], "url": "https://github.com/fonttools/fonttools/releases/tag/4.43.0"}, {"url": "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/VY63B4SGY4QOQGUXMECRGD6K3YT3GJ75/", "tags": ["x_transferred"]}, {"url": "http://www.openwall.com/lists/oss-security/2024/03/09/1", "tags": ["x_transferred"]}, {"url": "http://www.openwall.com/lists/oss-security/2024/03/08/2", "tags": ["x_transferred"]}]}, {"metrics": [{"other": {"type": "ssvc", "content": {"timestamp": "2025-05-08T18:37:10.491503Z", "id": "CVE-2023-45139", "options": [{"Exploitation": "poc"}, {"Automatable": "yes"}, {"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": "2025-06-03T14:27:45.728Z"}}]}}

{"dataType": "CVE_RECORD", "containers": {"adp": [{"title": "CVE Program Container", "references": [{"url": "https://github.com/fonttools/fonttools/security/advisories/GHSA-6673-4983-2vx5", "name": "https://github.com/fonttools/fonttools/security/advisories/GHSA-6673-4983-2vx5", "tags": ["x_refsource_CONFIRM", "x_transferred"]}, {"url": "https://github.com/fonttools/fonttools/commit/9f61271dc1ca82ed91f529b130fe5dc5c9bf1f4c", "name": "https://github.com/fonttools/fonttools/commit/9f61271dc1ca82ed91f529b130fe5dc5c9bf1f4c", "tags": ["x_refsource_MISC", "x_transferred"]}, {"url": "https://github.com/fonttools/fonttools/releases/tag/4.43.0", "name": "https://github.com/fonttools/fonttools/releases/tag/4.43.0", "tags": ["x_refsource_MISC", "x_transferred"]}, {"url": "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/VY63B4SGY4QOQGUXMECRGD6K3YT3GJ75/", "tags": ["x_transferred"]}, {"url": "http://www.openwall.com/lists/oss-security/2024/03/09/1", "tags": ["x_transferred"]}, {"url": "http://www.openwall.com/lists/oss-security/2024/03/08/2", "tags": ["x_transferred"]}], "providerMetadata": {"orgId": "af854a3a-2127-422b-91ae-364da2661108", "shortName": "CVE", "dateUpdated": "2024-08-02T20:14:19.258Z"}}, {"title": "CISA ADP Vulnrichment", "metrics": [{"other": {"type": "ssvc", "content": {"id": "CVE-2023-45139", "role": "CISA Coordinator", "options": [{"Exploitation": "poc"}, {"Automatable": "yes"}, {"Technical Impact": "partial"}], "version": "2.0.3", "timestamp": "2025-05-08T18:37:10.491503Z"}}}], "providerMetadata": {"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "shortName": "CISA-ADP", "dateUpdated": "2025-05-08T18:37:11.985Z"}}], "cna": {"title": "fonttools XML External Entity Injection (XXE) Vulnerability", "source": {"advisory": "GHSA-6673-4983-2vx5", "discovery": "UNKNOWN"}, "metrics": [{"cvssV3_1": {"scope": "UNCHANGED", "version": "3.1", "baseScore": 7.5, "attackVector": "NETWORK", "baseSeverity": "HIGH", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N", "integrityImpact": "NONE", "userInteraction": "NONE", "attackComplexity": "LOW", "availabilityImpact": "NONE", "privilegesRequired": "NONE", "confidentialityImpact": "HIGH"}}], "affected": [{"vendor": "fonttools", "product": "fonttools", "versions": [{"status": "affected", "version": ">= 4.28.2, < 4.43.0"}]}], "references": [{"url": "https://github.com/fonttools/fonttools/security/advisories/GHSA-6673-4983-2vx5", "name": "https://github.com/fonttools/fonttools/security/advisories/GHSA-6673-4983-2vx5", "tags": ["x_refsource_CONFIRM"]}, {"url": "https://github.com/fonttools/fonttools/commit/9f61271dc1ca82ed91f529b130fe5dc5c9bf1f4c", "name": "https://github.com/fonttools/fonttools/commit/9f61271dc1ca82ed91f529b130fe5dc5c9bf1f4c", "tags": ["x_refsource_MISC"]}, {"url": "https://github.com/fonttools/fonttools/releases/tag/4.43.0", "name": "https://github.com/fonttools/fonttools/releases/tag/4.43.0", "tags": ["x_refsource_MISC"]}, {"url": "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/VY63B4SGY4QOQGUXMECRGD6K3YT3GJ75/"}, {"url": "http://www.openwall.com/lists/oss-security/2024/03/09/1"}, {"url": "http://www.openwall.com/lists/oss-security/2024/03/08/2"}], "descriptions": [{"lang": "en", "value": "fontTools is a library for manipulating fonts, written in Python. The subsetting module has a XML External Entity Injection (XXE) vulnerability which allows an attacker to resolve arbitrary entities when a candidate font (OT-SVG fonts), which contains a SVG table, is parsed. This allows attackers to include arbitrary files from the filesystem fontTools is running on or make web requests from the host system. This vulnerability has been patched in version 4.43.0."}], "problemTypes": [{"descriptions": [{"lang": "en", "type": "CWE", "cweId": "CWE-611", "description": "CWE-611: Improper Restriction of XML External Entity Reference"}]}], "providerMetadata": {"orgId": "a0819718-46f1-4df5-94e2-005712e83aaa", "shortName": "GitHub_M", "dateUpdated": "2024-05-01T18:06:54.318Z"}}}, "cveMetadata": {"cveId": "CVE-2023-45139", "state": "PUBLISHED", "dateUpdated": "2025-06-03T14:27:45.728Z", "dateReserved": "2023-10-04T16:02:46.329Z", "assignerOrgId": "a0819718-46f1-4df5-94e2-005712e83aaa", "datePublished": "2024-01-10T16:03:08.770Z", "assignerShortName": "GitHub_M"}, "dataVersion": "5.1"}

{"affected": [{"affectedData": [{"product": "fonttools", "vendor": "fonttools", "versions": [{"status": "affected", "version": ">= 4.28.2, < 4.43.0"}]}], "source": "security-advisories@github.com"}], "configurations": [{"nodes": [{"cpeMatch": [{"criteria": "cpe:2.3:a:fonttools:fonttools:*:*:*:*:*:python:*:*", "matchCriteriaId": "CA51147F-FB56-471F-AA46-967C55F0AE97", "versionEndExcluding": "4.43.0", "versionStartIncluding": "4.28.2", "vulnerable": true}], "negate": false, "operator": "OR"}]}], "cveTags": [], "descriptions": [{"lang": "en", "value": "fontTools is a library for manipulating fonts, written in Python. The subsetting module has a XML External Entity Injection (XXE) vulnerability which allows an attacker to resolve arbitrary entities when a candidate font (OT-SVG fonts), which contains a SVG table, is parsed. This allows attackers to include arbitrary files from the filesystem fontTools is running on or make web requests from the host system. This vulnerability has been patched in version 4.43.0."}, {"lang": "es", "value": "fontTools es una librer\u00eda para manipular fuentes, escrita en Python. El m\u00f3dulo subsetting tiene una vulnerabilidad de inyecci\u00f3n de entidades externas XML (XXE) que permite a un atacante resolver entidades arbitrarias cuando se analiza una fuente candidata (fuentes OT-SVG), que contiene una tabla SVG. Esto permite a los atacantes incluir archivos arbitrarios del sistema de archivos en el que se ejecuta fontTools o realizar solicitudes web desde el sistema host. Esta vulnerabilidad ha sido parcheada en la versi\u00f3n 4.43.0."}], "id": "CVE-2023-45139", "lastModified": "2026-06-17T06:28:17.890", "metrics": {"cvssMetricV31": [{"cvssData": {"attackComplexity": "LOW", "attackVector": "NETWORK", "availabilityImpact": "NONE", "baseScore": 7.5, "baseSeverity": "HIGH", "confidentialityImpact": "HIGH", "integrityImpact": "NONE", "privilegesRequired": "NONE", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N", "version": "3.1"}, "exploitabilityScore": 3.9, "impactScore": 3.6, "source": "security-advisories@github.com", "type": "Secondary"}, {"cvssData": {"attackComplexity": "LOW", "attackVector": "NETWORK", "availabilityImpact": "NONE", "baseScore": 7.5, "baseSeverity": "HIGH", "confidentialityImpact": "HIGH", "integrityImpact": "NONE", "privilegesRequired": "NONE", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N", "version": "3.1"}, "exploitabilityScore": 3.9, "impactScore": 3.6, "source": "nvd@nist.gov", "type": "Primary"}], "ssvcV203": [{"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "ssvcData": {"id": "CVE-2023-45139", "options": [{"exploitation": "poc"}, {"automatable": "yes"}, {"technicalImpact": "partial"}], "role": "CISA Coordinator", "timestamp": "2025-05-08T18:37:10.491503Z", "version": "2.0.3"}}]}, "published": "2024-01-10T16:15:46.767", "references": [{"source": "security-advisories@github.com", "url": "http://www.openwall.com/lists/oss-security/2024/03/08/2"}, {"source": "security-advisories@github.com", "url": "http://www.openwall.com/lists/oss-security/2024/03/09/1"}, {"source": "security-advisories@github.com", "tags": ["Patch"], "url": "https://github.com/fonttools/fonttools/commit/9f61271dc1ca82ed91f529b130fe5dc5c9bf1f4c"}, {"source": "security-advisories@github.com", "tags": ["Release Notes"], "url": "https://github.com/fonttools/fonttools/releases/tag/4.43.0"}, {"source": "security-advisories@github.com", "tags": ["Exploit", "Vendor Advisory"], "url": "https://github.com/fonttools/fonttools/security/advisories/GHSA-6673-4983-2vx5"}, {"source": "security-advisories@github.com", "url": "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/VY63B4SGY4QOQGUXMECRGD6K3YT3GJ75/"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "url": "http://www.openwall.com/lists/oss-security/2024/03/08/2"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "url": "http://www.openwall.com/lists/oss-security/2024/03/09/1"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Patch"], "url": "https://github.com/fonttools/fonttools/commit/9f61271dc1ca82ed91f529b130fe5dc5c9bf1f4c"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Release Notes"], "url": "https://github.com/fonttools/fonttools/releases/tag/4.43.0"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Exploit", "Vendor Advisory"], "url": "https://github.com/fonttools/fonttools/security/advisories/GHSA-6673-4983-2vx5"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "url": "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/VY63B4SGY4QOQGUXMECRGD6K3YT3GJ75/"}], "sourceIdentifier": "security-advisories@github.com", "vulnStatus": "Modified", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-611"}], "source": "security-advisories@github.com", "type": "Secondary"}]}

{"bugzilla": {"description": "fonttools: XML External Entity Injection (XXE) Vulnerability", "id": "2257808", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2257808"}, "csaw": false, "cvss3": {"cvss3_base_score": "7.5", "cvss3_scoring_vector": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N", "status": "draft"}, "cwe": "CWE-611", "details": ["fontTools is a library for manipulating fonts, written in Python. The subsetting module has a XML External Entity Injection (XXE) vulnerability which allows an attacker to resolve arbitrary entities when a candidate font (OT-SVG fonts), which contains a SVG table, is parsed. This allows attackers to include arbitrary files from the filesystem fontTools is running on or make web requests from the host system. This vulnerability has been patched in version 4.43.0.", "A flaw was found in the subsetting module of FontTools, which contains an XML External Entity Injection (XXE) vulnerability. This flaw allows malicious actors to exploit the parsing of candidate fonts, particularly those with an OT-SVG format that includes an SVG table. Through this vulnerability, attackers can manipulate the system to resolve arbitrary entities, potentially allowing them to include files from the filesystem where FontTools is operating or even initiate web requests from the host system."], "mitigation": {"lang": "en:us", "value": "There may be other ways to mitigate the issue. Here are some suggestions:\nSet the `resolve_entities=False` flag on parsing methods.\nConsider further methods of disallowing doctype declarations.\nConsider recursive regex matching."}, "name": "CVE-2023-45139", "package_state": [{"cpe": "cpe:/o:redhat:enterprise_linux:7", "fix_state": "Not affected", "package_name": "fonttools", "product_name": "Red Hat Enterprise Linux 7"}, {"cpe": "cpe:/o:redhat:enterprise_linux:8", "fix_state": "Not affected", "package_name": "google-noto-emoji-fonts", "product_name": "Red Hat Enterprise Linux 8"}, {"cpe": "cpe:/o:redhat:enterprise_linux:9", "fix_state": "Not affected", "package_name": "google-noto-emoji-fonts", "product_name": "Red Hat Enterprise Linux 9"}], "public_date": "2024-01-10T00:00:00Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2023-45139\nhttps://nvd.nist.gov/vuln/detail/CVE-2023-45139\nhttps://github.com/fonttools/fonttools/commit/9f61271dc1ca82ed91f529b130fe5dc5c9bf1f4c\nhttps://github.com/fonttools/fonttools/releases/tag/4.43.0\nhttps://github.com/fonttools/fonttools/security/advisories/GHSA-6673-4983-2vx5"], "statement": "Note that the impact is dependent on the environment fontTools is running in. The vulnerability has the most impact on consumers of fontTools who leverage the subsetting utility to subset untrusted OT-SVG fonts where the vulnerability may be exploited to read arbitrary files from the filesystem of the host fonttools is running on.", "threat_severity": "Moderate"}

{}