CVE-2026-62254

{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2026-62254", "assignerOrgId": "a0819718-46f1-4df5-94e2-005712e83aaa", "state": "PUBLISHED", "assignerShortName": "GitHub_M", "dateReserved": "2026-07-13T17:09:57.573Z", "datePublished": "2026-10-30T20:36:09.037Z", "dateUpdated": "2026-10-30T22:12:55.917Z"}, "containers": {"cna": {"title": "LibreDWG: excessive class-decoding reallocation in R13-R2000 DWG parsing", "problemTypes": [{"descriptions": [{"cweId": "CWE-400", "lang": "en", "description": "CWE-400: Uncontrolled Resource Consumption", "type": "CWE"}]}, {"descriptions": [{"cweId": "CWE-789", "lang": "en", "description": "CWE-789: Memory Allocation with Excessive Size Value", "type": "CWE"}]}], "metrics": [{"cvssV3_1": {"attackComplexity": "LOW", "attackVector": "LOCAL", "availabilityImpact": "HIGH", "baseScore": 5.5, "baseSeverity": "MEDIUM", "confidentialityImpact": "NONE", "integrityImpact": "NONE", "privilegesRequired": "NONE", "scope": "UNCHANGED", "userInteraction": "REQUIRED", "vectorString": "CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H", "version": "3.1"}}], "references": [{"name": "https://github.com/LibreDWG/libredwg/security/advisories/GHSA-gp83-hcvh-g255", "tags": ["x_refsource_CONFIRM"], "url": "https://github.com/LibreDWG/libredwg/security/advisories/GHSA-gp83-hcvh-g255"}, {"name": "https://github.com/LibreDWG/libredwg/issues/1261", "tags": ["x_refsource_MISC"], "url": "https://github.com/LibreDWG/libredwg/issues/1261"}, {"name": "https://github.com/LibreDWG/libredwg/commit/9de893a2e395ff5ac104a46cca54c5e2cf8f02cf", "tags": ["x_refsource_MISC"], "url": "https://github.com/LibreDWG/libredwg/commit/9de893a2e395ff5ac104a46cca54c5e2cf8f02cf"}, {"name": "https://github.com/LibreDWG/libredwg/releases/tag/0.14", "tags": ["x_refsource_MISC"], "url": "https://github.com/LibreDWG/libredwg/releases/tag/0.14"}], "affected": [{"vendor": "LibreDWG", "product": "libredwg", "versions": [{"version": "< 0.14", "status": "affected"}]}], "providerMetadata": {"orgId": "a0819718-46f1-4df5-94e2-005712e83aaa", "shortName": "GitHub_M", "dateUpdated": "2026-10-30T20:36:09.037Z"}, "descriptions": [{"lang": "en", "value": "LibreDWG is a free C library to read and write DWG files. Prior to 0.14, a specially crafted R13-R2000 DWG can trigger algorithmic resource exhaustion in `decode_R13_R2000` in `src/decode.c`. The class-decoding loop performs `realloc` on every iteration without a sanity check on `num_classes`. Manipulating that field forces an extremely slow allocation loop and denial of service when the file is parsed. Running the parser in a sandbox with memory limits is a workaround rather than a remediation. This issue is fixed in version 0.14."}], "source": {"advisory": "GHSA-gp83-hcvh-g255", "discovery": "UNKNOWN"}}, "adp": [{"metrics": [{"other": {"type": "ssvc", "content": {"timestamp": "2026-10-30T21:18:19.876055Z", "id": "CVE-2026-62254", "options": [{"Exploitation": "none"}, {"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": "2026-10-30T22:12:55.917Z"}}]}}

{"dataType": "CVE_RECORD", "containers": {"adp": [{"title": "CISA ADP Vulnrichment", "metrics": [{"other": {"type": "ssvc", "content": {"id": "CVE-2026-62254", "role": "CISA Coordinator", "options": [{"Exploitation": "none"}, {"Automatable": "no"}, {"Technical Impact": "partial"}], "version": "2.0.3", "timestamp": "2026-10-30T21:18:19.876055Z"}}}], "providerMetadata": {"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "shortName": "CISA-ADP", "dateUpdated": "2026-10-30T21:18:20.713Z"}}], "cna": {"title": "LibreDWG: excessive class-decoding reallocation in R13-R2000 DWG parsing", "source": {"advisory": "GHSA-gp83-hcvh-g255", "discovery": "UNKNOWN"}, "metrics": [{"cvssV3_1": {"scope": "UNCHANGED", "version": "3.1", "baseScore": 5.5, "attackVector": "LOCAL", "baseSeverity": "MEDIUM", "vectorString": "CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H", "integrityImpact": "NONE", "userInteraction": "REQUIRED", "attackComplexity": "LOW", "availabilityImpact": "HIGH", "privilegesRequired": "NONE", "confidentialityImpact": "NONE"}}], "affected": [{"vendor": "LibreDWG", "product": "libredwg", "versions": [{"status": "affected", "version": "< 0.14"}]}], "references": [{"url": "https://github.com/LibreDWG/libredwg/security/advisories/GHSA-gp83-hcvh-g255", "name": "https://github.com/LibreDWG/libredwg/security/advisories/GHSA-gp83-hcvh-g255", "tags": ["x_refsource_CONFIRM"]}, {"url": "https://github.com/LibreDWG/libredwg/issues/1261", "name": "https://github.com/LibreDWG/libredwg/issues/1261", "tags": ["x_refsource_MISC"]}, {"url": "https://github.com/LibreDWG/libredwg/commit/9de893a2e395ff5ac104a46cca54c5e2cf8f02cf", "name": "https://github.com/LibreDWG/libredwg/commit/9de893a2e395ff5ac104a46cca54c5e2cf8f02cf", "tags": ["x_refsource_MISC"]}, {"url": "https://github.com/LibreDWG/libredwg/releases/tag/0.14", "name": "https://github.com/LibreDWG/libredwg/releases/tag/0.14", "tags": ["x_refsource_MISC"]}], "descriptions": [{"lang": "en", "value": "LibreDWG is a free C library to read and write DWG files. Prior to 0.14, a specially crafted R13-R2000 DWG can trigger algorithmic resource exhaustion in `decode_R13_R2000` in `src/decode.c`. The class-decoding loop performs `realloc` on every iteration without a sanity check on `num_classes`. Manipulating that field forces an extremely slow allocation loop and denial of service when the file is parsed. Running the parser in a sandbox with memory limits is a workaround rather than a remediation. This issue is fixed in version 0.14."}], "problemTypes": [{"descriptions": [{"lang": "en", "type": "CWE", "cweId": "CWE-400", "description": "CWE-400: Uncontrolled Resource Consumption"}]}, {"descriptions": [{"lang": "en", "type": "CWE", "cweId": "CWE-789", "description": "CWE-789: Memory Allocation with Excessive Size Value"}]}], "providerMetadata": {"orgId": "a0819718-46f1-4df5-94e2-005712e83aaa", "shortName": "GitHub_M", "dateUpdated": "2026-10-30T20:36:09.037Z"}}}, "cveMetadata": {"cveId": "CVE-2026-62254", "state": "PUBLISHED", "dateUpdated": "2026-10-30T22:12:55.917Z", "dateReserved": "2026-07-13T17:09:57.573Z", "assignerOrgId": "a0819718-46f1-4df5-94e2-005712e83aaa", "datePublished": "2026-10-30T20:36:09.037Z", "assignerShortName": "GitHub_M"}, "dataVersion": "5.2"}

{"affected": [{"affectedData": [{"product": "libredwg", "vendor": "LibreDWG", "versions": [{"status": "affected", "version": "< 0.14"}]}], "source": "security-advisories@github.com"}], "cveTags": [], "descriptions": [{"lang": "en", "value": "LibreDWG is a free C library to read and write DWG files. Prior to 0.14, a specially crafted R13-R2000 DWG can trigger algorithmic resource exhaustion in `decode_R13_R2000` in `src/decode.c`. The class-decoding loop performs `realloc` on every iteration without a sanity check on `num_classes`. Manipulating that field forces an extremely slow allocation loop and denial of service when the file is parsed. Running the parser in a sandbox with memory limits is a workaround rather than a remediation. This issue is fixed in version 0.14."}], "id": "CVE-2026-62254", "lastModified": "2026-11-02T19:35:33.347", "metrics": {"cvssMetricV31": [{"cvssData": {"attackComplexity": "LOW", "attackVector": "LOCAL", "availabilityImpact": "HIGH", "baseScore": 5.5, "baseSeverity": "MEDIUM", "confidentialityImpact": "NONE", "integrityImpact": "NONE", "privilegesRequired": "NONE", "scope": "UNCHANGED", "userInteraction": "REQUIRED", "vectorString": "CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H", "version": "3.1"}, "exploitabilityScore": 1.8, "impactScore": 3.6, "source": "security-advisories@github.com", "type": "Secondary"}], "ssvcV203": [{"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "ssvcData": {"id": "CVE-2026-62254", "options": [{"exploitation": "none"}, {"automatable": "no"}, {"technicalImpact": "partial"}], "role": "CISA Coordinator", "timestamp": "2026-10-30T21:18:19.876055Z", "version": "2.0.3"}}]}, "published": "2026-10-30T21:17:13.370", "references": [{"source": "security-advisories@github.com", "url": "https://github.com/LibreDWG/libredwg/commit/9de893a2e395ff5ac104a46cca54c5e2cf8f02cf"}, {"source": "security-advisories@github.com", "url": "https://github.com/LibreDWG/libredwg/issues/1261"}, {"source": "security-advisories@github.com", "url": "https://github.com/LibreDWG/libredwg/releases/tag/0.14"}, {"source": "security-advisories@github.com", "url": "https://github.com/LibreDWG/libredwg/security/advisories/GHSA-gp83-hcvh-g255"}], "sourceIdentifier": "security-advisories@github.com", "vulnStatus": "Deferred", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-400"}, {"lang": "en", "value": "CWE-789"}], "source": "security-advisories@github.com", "type": "Secondary"}]}

{}

{"affected": [{"configurations": [{"platform": null, "status": "affected", "versions": {"scheme": "generic", "value": "[0,0.14)"}}], "enrichment": {"confidence": 100.0, "confidence_source": "matching", "scores": [{"score": 100.0, "source": "matching"}]}, "original": {"product": "libredwg", "source": "cna", "vendor": "LibreDWG"}, "product": "libredwg", "vendor": "libredwg"}], "created": "2026-10-30T21:30:11.693113+00:00", "updated": "2026-10-30T21:45:15.221761+00:00", "vendors": ["libredwg", "libredwg$PRODUCT$libredwg"]}