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{"affected": [{"affectedData": [{"defaultStatus": "unaffected", "product": "glibc", "vendor": "The GNU C Library", "versions": [{"lessThanOrEqual": "2.31", "status": "affected", "version": "2.18", "versionType": "custom"}]}], "source": "3ff69d7a-14f2-4f67-a097-88dee7810d18"}], "cveTags": [], "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."}], "id": "CVE-2026-122054", "lastModified": "2026-11-04T18:17:43.253", "metrics": {"cvssMetricV31": [{"cvssData": {"attackComplexity": "HIGH", "attackVector": "NETWORK", "availabilityImpact": "HIGH", "baseScore": 5.9, "baseSeverity": "MEDIUM", "confidentialityImpact": "NONE", "integrityImpact": "NONE", "privilegesRequired": "NONE", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H", "version": "3.1"}, "exploitabilityScore": 2.2, "impactScore": 3.6, "source": "3ff69d7a-14f2-4f67-a097-88dee7810d18", "type": "Secondary"}]}, "published": "2026-11-04T18:17:43.253", "references": [{"source": "3ff69d7a-14f2-4f67-a097-88dee7810d18", "url": "https://sourceware.org/bugzilla/show_bug.cgi?id=25734"}, {"source": "3ff69d7a-14f2-4f67-a097-88dee7810d18", "url": "https://sourceware.org/git/?p=glibc.git;a=blob_plain;f=advisories/GLIBC-SA-2026-0026"}], "sourceIdentifier": "3ff69d7a-14f2-4f67-a097-88dee7810d18", "vulnStatus": "Received", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-835"}], "source": "3ff69d7a-14f2-4f67-a097-88dee7810d18", "type": "Secondary"}]}

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