{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-122054","assignerOrgId":"3ff69d7a-14f2-4f67-a097-88dee7810d18","state":"PUBLISHED","assignerShortName":"glibc","dateReserved":"2026-11-04T16:28:03.957Z","datePublished":"2026-11-04T17:17:38.321Z","dateUpdated":"2026-11-04T19:04:35.774Z"},"containers":{"cna":{"providerMetadata":{"orgId":"3ff69d7a-14f2-4f67-a097-88dee7810d18","shortName":"glibc","dateUpdated":"2026-11-04T17:17:38.321Z"},"title":"BIG-HKSCS decoding hang on crafted input","datePublic":"2020-03-27T04:00:00.000Z","problemTypes":[{"descriptions":[{"lang":"en","cweId":"CWE-835","description":"CWE-835 Loop with unreachable exit condition ('infinite loop')","type":"CWE"}]}],"impacts":[{"capecId":"CAPEC-153","descriptions":[{"lang":"en","value":"CAPEC-153 Input Data Manipulation"}]}],"affected":[{"vendor":"The GNU C Library","product":"glibc","versions":[{"status":"affected","version":"2.18","lessThanOrEqual":"2.31","versionType":"custom"}],"defaultStatus":"unaffected"}],"descriptions":[{"lang":"en","value":"Converting crafted BIG-HKSCS input to UCS-4 or the internal wide character encoding, for example with iconv, in the GNU C Library version 2.18 through 2.31 may result in the converter making no progress, causing the calling application to hang.","supportingMedia":[{"type":"text/html","base64":false,"value":"Converting crafted BIG-HKSCS input to UCS-4 or the internal wide character encoding, for example with iconv, in the GNU C Library version 2.18 through 2.31 may result in the converter making no progress, causing the calling application to hang.<br>"}]}],"references":[{"url":"https://sourceware.org/bugzilla/show_bug.cgi?id=25734","tags":["issue-tracking"]},{"url":"https://sourceware.org/git/?p=glibc.git;a=blob_plain;f=advisories/GLIBC-SA-2026-0026","tags":["vendor-advisory"]}],"metrics":[{"format":"CVSS","scenarios":[{"lang":"en","value":"GENERAL"}],"cvssV3_1":{"version":"3.1","attackVector":"NETWORK","attackComplexity":"HIGH","privilegesRequired":"NONE","userInteraction":"NONE","scope":"UNCHANGED","confidentialityImpact":"NONE","integrityImpact":"NONE","availabilityImpact":"HIGH","baseSeverity":"MEDIUM","baseScore":5.9,"vectorString":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H"}}],"credits":[{"lang":"en","value":"Tom Honermann","type":"reporter"}],"source":{"discovery":"UNKNOWN"},"x_generator":{"engine":"Vulnogram 1.0.5"}},"adp":[{"title":"CVE Program Container","references":[{"url":"http://www.openwall.com/lists/oss-security/2026/11/04/10"}],"providerMetadata":{"orgId":"af854a3a-2127-422b-91ae-364da2661108","shortName":"CVE","dateUpdated":"2026-11-04T19:04:35.774Z"}}]}}