{"id":"CVE-2026-54610","aliases":[],"cve":{"records":[{"id":"CVE-2026-54610","source":"GitHub_M","state":"PUBLISHED","reasons":[],"replacements":[],"disputed":false,"unsupportedWhenAssigned":false,"reserved":"2026-06-15T19:45:23.540Z","published":"2026-10-30T20:39:19.805Z","modified":"2026-10-30T20:39:19.805Z"}],"publishers":[{"name":"GitHub_M","role":"CNA","organizationId":"a0819718-46f1-4df5-94e2-005712e83aaa","modified":"2026-10-30T20:39:19.805Z"}],"references":[{"url":"https://github.com/LibreDWG/libredwg/security/advisories/GHSA-5p98-8245-6hxq","tags":["x_refsource_CONFIRM"],"source":"GitHub_M"},{"url":"https://github.com/LibreDWG/libredwg/commit/08c034a224a4e9512b1cd62e74b5cf081a4cfa89","tags":["x_refsource_MISC"],"source":"GitHub_M"},{"url":"https://github.com/LibreDWG/libredwg/releases/tag/0.14","tags":["x_refsource_MISC"],"source":"GitHub_M"},{"url":"https://github.com/user-attachments/files/28631091/libredwg-bit-tv-to-utf8-submission.tar.gz","tags":["x_refsource_MISC"],"source":"GitHub_M"}],"weaknesses":[{"id":"CWE-471","description":"CWE-471: Modification of Assumed-Immutable Data (MAID)","source":"GitHub_M"},{"id":"CWE-703","description":"CWE-703: Improper Check or Handling of Exceptional Conditions","source":"GitHub_M"}],"applicability":[],"prioritization":[]},"title":"LibreDWG: const-input mutation and crash in bit_TV_to_utf8 error handling","titleSource":"GitHub_M","descriptionSource":"GitHub_M","description":"LibreDWG is a free C library to read and write DWG files. Prior to 0.14, `bit_TV_to_utf8()` in `src/bits.c` can write to the caller-provided `src` buffer despite accepting const input. On an `iconv()` error other than `E2BIG`, the function frees its output buffer and passes the original input alias to `bit_u_expand()`, which expands or shrinks Unicode and multibyte escape sequences in place. If the input is a string literal, read-only mapping, or other immutable buffer, the write can cause a segmentation fault and denial of service; mutable caller-owned input can be unexpectedly modified before being returned. This affects applications that expose the conversion API to untrusted input under those conditions. Direct file-triggered exploitability through normal DWG decode/export paths remains unconfirmed because many TV strings are heap allocated by bit_read_TV(). This issue is fixed in version 0.14.","score":3.3,"severity":"low","published":"2026-10-30T20:39:19.805Z","modified":"2026-10-30T20:39:19.805Z","withdrawn":false,"knownExploited":false,"affected":[],"products":[{"vendor":"LibreDWG","name":"libredwg","platforms":[],"versions":[{"version":"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-2026-54610"}],"remediation":[],"references":["https://github.com/LibreDWG/libredwg/security/advisories/GHSA-5p98-8245-6hxq","https://github.com/LibreDWG/libredwg/commit/08c034a224a4e9512b1cd62e74b5cf081a4cfa89","https://github.com/LibreDWG/libredwg/releases/tag/0.14","https://github.com/user-attachments/files/28631091/libredwg-bit-tv-to-utf8-submission.tar.gz"],"sources":[{"name":"CVE","id":"CVE-2026-54610","modified":"2026-10-30T20:39:19.805Z","url":"https://www.cve.org/CVERecord?id=CVE-2026-54610"}],"assessments":[{"source":"GitHub_M","vector":"CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:L","score":3.3}],"sourceAffected":[],"observedAt":"2026-10-30T21:22:51.117Z","kev":{"status":"not-listed","checkedAt":"2026-10-31T03:10:30.875Z"},"coverage":[{"source":"NVD","status":"available","checkedAt":"2026-10-30T21:25:33.633Z","attemptedAt":"2026-10-30T21:25:33.633Z"},{"source":"GHSA","status":"no-result","checkedAt":"2026-10-30T21:25:33.631Z","attemptedAt":"2026-10-30T21:25:33.631Z"},{"source":"EUVD","status":"no-result","checkedAt":"2026-10-30T21:25:33.657Z","attemptedAt":"2026-10-30T21:25:33.657Z"},{"source":"EPSS","status":"no-result","checkedAt":"2026-10-30T21:25:33.150Z","attemptedAt":"2026-10-30T21:25:33.150Z"}],"evidence":[{"source":"NVD","id":"CVE-2026-54610","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-54610","modified":"2026-10-30T21:16:57.520","score":3.3,"vector":"CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:L","checkedAt":"2026-10-30T21:25:33.633Z"}],"aiSummary":null}