{"id":"CVE-2026-62254","aliases":[],"cve":{"records":[{"id":"CVE-2026-62254","source":"GitHub_M","state":"PUBLISHED","reasons":[],"replacements":[],"disputed":false,"unsupportedWhenAssigned":false,"reserved":"2026-07-13T17:09:57.573Z","published":"2026-10-30T20:36:09.037Z","modified":"2026-10-30T22:12:55.917Z"}],"publishers":[{"name":"GitHub_M","role":"CNA","organizationId":"a0819718-46f1-4df5-94e2-005712e83aaa","modified":"2026-10-30T20:36:09.037Z"},{"name":"CISA-ADP","role":"ADP","organizationId":"134c704f-9b21-4f2e-91b3-4a467353bcc0","modified":"2026-10-30T22:12:55.917Z"}],"references":[{"url":"https://github.com/LibreDWG/libredwg/security/advisories/GHSA-gp83-hcvh-g255","tags":["x_refsource_CONFIRM"],"source":"GitHub_M"},{"url":"https://github.com/LibreDWG/libredwg/issues/1261","tags":["x_refsource_MISC"],"source":"GitHub_M"},{"url":"https://github.com/LibreDWG/libredwg/commit/9de893a2e395ff5ac104a46cca54c5e2cf8f02cf","tags":["x_refsource_MISC"],"source":"GitHub_M"},{"url":"https://github.com/LibreDWG/libredwg/releases/tag/0.14","tags":["x_refsource_MISC"],"source":"GitHub_M"}],"weaknesses":[{"id":"CWE-400","description":"CWE-400: Uncontrolled Resource Consumption","source":"GitHub_M"},{"id":"CWE-789","description":"CWE-789: Memory Allocation with Excessive Size Value","source":"GitHub_M"}],"applicability":[],"prioritization":[{"source":"CISA-ADP","type":"SSVC","role":"CISA Coordinator","timestamp":"2026-10-30T21:18:19.876055Z","decisions":[{"name":"Exploitation","value":"none"},{"name":"Automatable","value":"no"},{"name":"Technical Impact","value":"partial"}]}]},"title":"LibreDWG: excessive class-decoding reallocation in R13-R2000 DWG parsing","titleSource":"GitHub_M","descriptionSource":"GitHub_M","description":"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0.14.","score":5.5,"severity":"medium","published":"2026-10-30T20:36:09.037Z","modified":"2026-10-30T22:12:55.917Z","withdrawn":false,"knownExploited":false,"affected":[],"products":[{"vendor":"LibreDWG","name":"libredwg","platforms":[],"versions":[{"version":"< 0.14","status":"affected"}],"cpes":[],"source":"GitHub_M","url":"https://www.cve.org/CVERecord?id=CVE-2026-62254"}],"remediation":[],"references":["https://github.com/LibreDWG/libredwg/security/advisories/GHSA-gp83-hcvh-g255","https://github.com/LibreDWG/libredwg/issues/1261","https://github.com/LibreDWG/libredwg/commit/9de893a2e395ff5ac104a46cca54c5e2cf8f02cf","https://github.com/LibreDWG/libredwg/releases/tag/0.14"],"sources":[{"name":"CVE","id":"CVE-2026-62254","modified":"2026-10-30T22:12:55.917Z","url":"https://www.cve.org/CVERecord?id=CVE-2026-62254"}],"assessments":[{"source":"GitHub_M","vector":"CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H","score":5.5}],"sourceAffected":[],"observedAt":"2026-10-30T22:16:56.686Z","kev":{"status":"not-listed","checkedAt":"2026-10-31T09:10:30.844Z"},"coverage":[{"source":"NVD","status":"available","checkedAt":"2026-10-30T21:25:34.541Z","attemptedAt":"2026-10-30T21:25:34.541Z"},{"source":"GHSA","status":"no-result","checkedAt":"2026-10-30T21:25:34.770Z","attemptedAt":"2026-10-30T21:25:34.770Z"},{"source":"EUVD","status":"no-result","checkedAt":"2026-10-30T21:25:34.481Z","attemptedAt":"2026-10-30T21:25:34.481Z"},{"source":"EPSS","status":"no-result","checkedAt":"2026-10-30T21:25:33.969Z","attemptedAt":"2026-10-30T21:25:33.969Z"}],"evidence":[{"source":"NVD","id":"CVE-2026-62254","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-62254","modified":"2026-10-30T21:17:13.370","score":5.5,"vector":"CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H","checkedAt":"2026-10-30T21:25:34.541Z"}],"aiSummary":{"text":"LibreDWG versions prior to 0.14 are vulnerable to denial of service via excessive class-decoding reallocation when parsing specially crafted R13-R2000 DWG files. The issue is caused by uncontrolled resource consumption and memory allocation with excessive size value. Local access is required to exploit this weakness.","model":"@cf/meta/llama-3.3-70b-instruct-fp8-fast","generatedAt":"2026-10-31T00:21:10.085Z","sources":[{"name":"CVE","url":"https://www.cve.org/CVERecord?id=CVE-2026-62254"}]}}