{"api_version":"1","generated_at":"2026-07-17T03:46:15+00:00","cve":"CVE-2026-57077","urls":{"html":"https://cve.report/CVE-2026-57077","api":"https://cve.report/api/cve/CVE-2026-57077.json","docs":"https://cve.report/api","cve_org":"https://www.cve.org/CVERecord?id=CVE-2026-57077","nvd":"https://nvd.nist.gov/vuln/detail/CVE-2026-57077"},"summary":{"title":"YAML::Syck versions before 1.47 for Perl allow an out-of-bounds read via an unbounded newline scan in newline_len","description":"YAML::Syck versions before 1.47 for Perl allow an out-of-bounds read via an unbounded newline scan in newline_len.\n\nIn the bundled libsyck newline_len and is_newline dereference the scan pointer, and the following byte for a \"\\r\\n\" pair, with no NUL-terminator or bounds check. During block-scalar lexing at a document boundary the scan runs one byte past the heap lexer buffer. This is an incomplete fix of CVE-2025-11683, on a lexer path the earlier fix did not cover.\n\nAny caller that runs Load or LoadFile on an untrusted document with a block scalar at a document boundary reaches the over-read.","state":"PUBLISHED","assigner":"CPANSec","published_at":"2026-07-16 22:17:43","updated_at":"2026-07-16 22:17:43"},"problem_types":["CWE-125","CWE-125 CWE-125 Out-of-bounds Read"],"metrics":[],"references":[{"url":"https://metacpan.org/release/TODDR/YAML-Syck-1.47/changes","name":"https://metacpan.org/release/TODDR/YAML-Syck-1.47/changes","refsource":"9b29abf9-4ab0-4765-b253-1875cd9b441e","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://www.cve.org/CVERecord?id=CVE-2025-11683","name":"https://www.cve.org/CVERecord?id=CVE-2025-11683","refsource":"9b29abf9-4ab0-4765-b253-1875cd9b441e","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://github.com/toddr/YAML-Syck/commit/44c90a109ec3215ee7ce747bd11209835e123d8b.patch","name":"https://github.com/toddr/YAML-Syck/commit/44c90a109ec3215ee7ce747bd11209835e123d8b.patch","refsource":"9b29abf9-4ab0-4765-b253-1875cd9b441e","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://www.cve.org/CVERecord?id=CVE-2026-57077","name":"CVE Program record","refsource":"CVE.ORG","tags":["canonical"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-57077","name":"NVD vulnerability detail","refsource":"NVD","tags":["canonical","analysis"]}],"affected":[{"source":"CNA","vendor":"TODDR","product":"YAML::Syck","version":"affected 1.47 custom","platforms":[]}],"timeline":[],"solutions":[{"source":"CNA","title":"","value":"Upgrade to YAML-Syck 1.47 or later.","time":"","lang":"en"}],"workarounds":[],"exploits":[],"credits":[],"nvd_cpes":[],"vendor_comments":[],"enrichments":{"kev":null,"epss":null,"legacy_qids":[]},"source_records":{"cve_program":{"containers":{"cna":{"affected":[{"collectionURL":"https://cpan.org/modules","defaultStatus":"unaffected","packageName":"YAML-Syck","product":"YAML::Syck","programFiles":["token.c"],"programRoutines":[{"name":"newline_len"},{"name":"is_newline"}],"repo":"https://github.com/toddr/YAML-Syck","vendor":"TODDR","versions":[{"lessThan":"1.47","status":"affected","version":"0","versionType":"custom"}]}],"descriptions":[{"lang":"en","value":"YAML::Syck versions before 1.47 for Perl allow an out-of-bounds read via an unbounded newline scan in newline_len.\n\nIn the bundled libsyck newline_len and is_newline dereference the scan pointer, and the following byte for a \"\\r\\n\" pair, with no NUL-terminator or bounds check. During block-scalar lexing at a document boundary the scan runs one byte past the heap lexer buffer. This is an incomplete fix of CVE-2025-11683, on a lexer path the earlier fix did not cover.\n\nAny caller that runs Load or LoadFile on an untrusted document with a block scalar at a document boundary reaches the over-read."}],"problemTypes":[{"descriptions":[{"cweId":"CWE-125","description":"CWE-125 Out-of-bounds Read","lang":"en","type":"CWE"}]}],"providerMetadata":{"dateUpdated":"2026-07-16T21:41:52.038Z","orgId":"9b29abf9-4ab0-4765-b253-1875cd9b441e","shortName":"CPANSec"},"references":[{"tags":["release-notes"],"url":"https://metacpan.org/release/TODDR/YAML-Syck-1.47/changes"},{"tags":["patch"],"url":"https://github.com/toddr/YAML-Syck/commit/44c90a109ec3215ee7ce747bd11209835e123d8b.patch"},{"tags":["related"],"url":"https://www.cve.org/CVERecord?id=CVE-2025-11683"}],"solutions":[{"lang":"en","value":"Upgrade to YAML-Syck 1.47 or later."}],"source":{"discovery":"UNKNOWN"},"title":"YAML::Syck versions before 1.47 for Perl allow an out-of-bounds read via an unbounded newline scan in newline_len","x_generator":{"engine":"cpansec-cna-tool 0.1"}}},"cveMetadata":{"assignerOrgId":"9b29abf9-4ab0-4765-b253-1875cd9b441e","assignerShortName":"CPANSec","cveId":"CVE-2026-57077","datePublished":"2026-07-16T21:41:52.038Z","dateReserved":"2026-06-23T18:02:32.995Z","dateUpdated":"2026-07-16T21:41:52.038Z","state":"PUBLISHED"},"dataType":"CVE_RECORD","dataVersion":"5.2"},"nvd":{"publishedDate":"2026-07-16 22:17:43","lastModifiedDate":"2026-07-16 22:17:43","problem_types":["CWE-125","CWE-125 CWE-125 Out-of-bounds Read"],"metrics":[],"configurations":[]},"legacy_mitre":{"record":{"CveYear":"2026","CveId":"57077","Ordinal":"1","Title":"YAML::Syck versions before 1.47 for Perl allow an out-of-bounds ","CVE":"CVE-2026-57077","Year":"2026"},"notes":[{"CveYear":"2026","CveId":"57077","Ordinal":"1","NoteData":"YAML::Syck versions before 1.47 for Perl allow an out-of-bounds read via an unbounded newline scan in newline_len.\n\nIn the bundled libsyck newline_len and is_newline dereference the scan pointer, and the following byte for a \"\\r\\n\" pair, with no NUL-terminator or bounds check. During block-scalar lexing at a document boundary the scan runs one byte past the heap lexer buffer. This is an incomplete fix of CVE-2025-11683, on a lexer path the earlier fix did not cover.\n\nAny caller that runs Load or LoadFile on an untrusted document with a block scalar at a document boundary reaches the over-read.","Type":"Description","Title":"YAML::Syck versions before 1.47 for Perl allow an out-of-bounds "}]}}}