{ "dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": { "cveId": "CVE-2026-111269", "assignerOrgId": "83251b91-4cc7-4094-a5c7-464a1b83ea10", "state": "PUBLISHED", "assignerShortName": "VulnCheck", "dateReserved": "2026-10-15T19:33:18.967Z", "datePublished": "2026-10-15T21:43:16.966Z", "dateUpdated": "2026-10-15T21:43:16.966Z" }, "containers": { "cna": { "providerMetadata": { "orgId": "83251b91-4cc7-4094-a5c7-464a1b83ea10", "shortName": "VulnCheck", "dateUpdated": "2026-10-15T21:43:16.966Z" }, "datePublic": "2026-10-14T00:00:00.000Z", "title": "libical through 4.0.6 Heap Out-of-Bounds Read via icalvalue_decode_ical_string", "descriptions": [ { "lang": "en", "value": "libical through 4.0.6 contains a heap-based out-of-bounds read in icalvalue_decode_ical_string() in src/libical/icalvalue.c when decoding input ending in a backslash. Attackers can supply escaped iCalendar text with a trailing backslash, causing the loop to read past the terminator and crash the application or leak adjacent heap memory." } ], "problemTypes": [ { "descriptions": [ { "lang": "en", "description": "Out-of-bounds Read", "cweId": "CWE-125", "type": "CWE" } ] } ], "affected": [ { "vendor": "libical", "product": "libical", "defaultStatus": "unaffected", "versions": [ { "version": "0", "lessThanOrEqual": "4.0.6", "status": "affected", "versionType": "semver" } ], "packageURL": "pkg:github/libical/libical", "repo": "https://github.com/libical/libical" } ], "cpeApplicability": [ { "nodes": [ { "operator": "OR", "negate": false, "cpeMatch": [ { "vulnerable": true, "criteria": "cpe:2.3:a:libical_project:libical:*:*:*:*:*:*:*:*", "versionEndIncluding": "4.0.6" } ] } ] } ], "metrics": [ { "format": "CVSS", "cvssV4_0": { "version": "4.0", "vectorString": "CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:P/VC:L/VI:N/VA:H/SC:N/SI:N/SA:N", "attackVector": "LOCAL", "attackComplexity": "LOW", "attackRequirements": "NONE", "privilegesRequired": "NONE", "userInteraction": "PASSIVE", "vulnConfidentialityImpact": "LOW", "vulnIntegrityImpact": "NONE", "vulnAvailabilityImpact": "HIGH", "subConfidentialityImpact": "NONE", "subIntegrityImpact": "NONE", "subAvailabilityImpact": "NONE", "baseScore": 6.9, "baseSeverity": "MEDIUM" } }, { "format": "CVSS", "cvssV3_1": { "version": "3.1", "vectorString": "CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:H", "attackVector": "LOCAL", "attackComplexity": "LOW", "privilegesRequired": "NONE", "userInteraction": "REQUIRED", "scope": "UNCHANGED", "confidentialityImpact": "LOW", "integrityImpact": "NONE", "availabilityImpact": "HIGH", "baseScore": 6.1, "baseSeverity": "MEDIUM" } } ], "references": [ { "url": "https://hackmd.io/@haind-pwn/libical-icalvalue-decode-ical-string-oob-read", "tags": [ "technical-description" ] }, { "url": "https://github.com/libical/libical/pull/1455", "tags": [ "patch", "issue-tracking" ] }, { "url": "https://github.com/libical/libical/commit/d753885ce2de7c105d6b8c405aa7aee1d98ad8de", "tags": [ "patch" ] }, { "url": "https://github.com/libical/libical/blob/9cfca65c122fa23b9680a28e0c9225a2fd015fc5/src/libical/icalvalue.c#L1608-L1645", "tags": [ "technical-description" ] }, { "url": "https://github.com/libical/libical", "tags": [ "product" ] }, { "name": "VulnCheck Advisory: libical through 4.0.6 Heap Out-of-Bounds Read via icalvalue_decode_ical_string", "tags": [ "third-party-advisory" ], "url": "https://www.vulncheck.com/advisories/libical-through-4.0.6-heap-out-of-bounds-read-via-icalvalue-decode-ical-string" } ], "credits": [ { "lang": "en", "value": "alepacheco", "type": "finder" }, { "lang": "en", "value": "HaiND from the Post and Telecommunication Institute of Technology", "type": "finder" } ], "x_generator": { "engine": "vulncheck-endgame" } } } }