{ "dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": { "cveId": "CVE-2026-57075", "assignerOrgId": "9b29abf9-4ab0-4765-b253-1875cd9b441e", "state": "PUBLISHED", "assignerShortName": "CPANSec", "dateReserved": "2026-06-23T18:02:32.994Z", "datePublished": "2026-07-16T21:39:22.991Z", "dateUpdated": "2026-07-17T13:08:37.487Z" }, "containers": { "cna": { "affected": [ { "collectionURL": "https://cpan.org/modules", "defaultStatus": "unaffected", "packageName": "YAML-Syck", "product": "YAML::Syck", "programFiles": [ "emitter.c" ], "programRoutines": [ { "name": "syck_base64dec" } ], "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 a signed-char lookup-table index in syck_base64dec.\n\nThe base64 decoder in the bundled libsyck indexes the 256-entry static table b64_xtable with a signed char, so any !!binary byte >= 0x80 sign-extends to a negative index and reads before the table. The decoder receives the raw bytes of any !!binary node, a standard YAML type not gated by $LoadBlessed or $LoadCode, so it is reached on the default Load path.\n\nAny caller that runs Load or LoadFile on an untrusted document containing a !!binary scalar with a high-bit byte triggers the read, and the value read can surface in the decoded result." } ], "problemTypes": [ { "descriptions": [ { "cweId": "CWE-125", "description": "CWE-125 Out-of-bounds Read", "lang": "en", "type": "CWE" } ] } ], "providerMetadata": { "orgId": "9b29abf9-4ab0-4765-b253-1875cd9b441e", "shortName": "CPANSec", "dateUpdated": "2026-07-16T21:39:22.991Z" }, "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" } ], "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 a signed-char lookup-table index in syck_base64dec", "x_generator": { "engine": "cpansec-cna-tool 0.1" } }, "adp": [ { "title": "CVE Program Container", "references": [ { "url": "http://www.openwall.com/lists/oss-security/2026/07/17/2" } ], "providerMetadata": { "orgId": "af854a3a-2127-422b-91ae-364da2661108", "shortName": "CVE", "dateUpdated": "2026-07-17T03:02:26.445Z" } }, { "metrics": [ { "cvssV3_1": { "scope": "UNCHANGED", "version": "3.1", "baseScore": 9.1, "attackVector": "NETWORK", "baseSeverity": "CRITICAL", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:H", "integrityImpact": "NONE", "userInteraction": "NONE", "attackComplexity": "LOW", "availabilityImpact": "HIGH", "privilegesRequired": "NONE", "confidentialityImpact": "HIGH" } }, { "other": { "type": "ssvc", "content": { "timestamp": "2026-07-17T13:08:13.464133Z", "id": "CVE-2026-57075", "options": [ { "Exploitation": "none" }, { "Automatable": "yes" }, { "Technical Impact": "total" } ], "role": "CISA Coordinator", "version": "2.0.3" } } } ], "title": "CISA ADP Vulnrichment", "providerMetadata": { "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "shortName": "CISA-ADP", "dateUpdated": "2026-07-17T13:08:37.487Z" } } ] } }