{"schema_version":1,"title":"Libxls vulnerabilities","summary":"Junglewise Threat Intelligence has tracked 4 vulnerabilities in Libxls: 0 in the last 7 days and 2 in the last 90 days, 0 of them critical and 0 exploited in the wild. The most recent, CVE-2026-79592, was published on 10 September 2026. 1 technology has a page of its own.","url":"https://junglewise.ai/threats/vendors/libxls","json_url":"https://junglewise.ai/threats/vendors/libxls.json","publisher":"Junglewise Threat Intelligence","license":"CC-BY-4.0","license_url":"https://creativecommons.org/licenses/by/4.0/","attribution":"Junglewise Threat Intelligence, https://junglewise.ai/threats/vendors/libxls","sources":"NVD, GitHub Security Advisories, OSV, the CISA Known Exploited Vulnerabilities catalog, FIRST EPSS and vendor advisories","kind":"vendor","counts":{"high":2,"all_time":4,"critical":0,"exploited":0,"last_7_days":0,"last_30_days":2,"last_90_days":2,"last_365_days":4},"latest":[{"cve":"CVE-2026-79592","cvss":7.5,"epss":0.0043,"slug":"cve-2026-79592-libxls-out-of-bounds-read-in-xls-dumpsummary","title":"libxls out-of-bounds read in xls_dumpSummary","severity":"high","exploited":false,"published_at":"2026-09-10T21:17:47.047+00:00","url":"https://junglewise.ai/threats/cve-2026-79592-libxls-out-of-bounds-read-in-xls-dumpsummary"},{"cve":"CVE-2026-79591","cvss":7.8,"epss":0.0017,"slug":"cve-2026-79591-libxls-heap-buffer-overflow-and-use-after-free-in-xls-getcss","title":"libxls heap-buffer-overflow and use-after-free in xls_getCSS","severity":"high","exploited":false,"published_at":"2026-09-10T21:17:46.933+00:00","url":"https://junglewise.ai/threats/cve-2026-79591-libxls-heap-buffer-overflow-and-use-after-free-in-xls-getcss"},{"cve":"CVE-2026-26825","slug":"cve-2026-26825-libxls-use-of-uninitialized-memory-in-xls-parseworkbook","title":"libxls use-of-uninitialized memory in xls_parseWorkBook","severity":"info","exploited":false,"published_at":"2026-06-03T20:16:18.797+00:00","url":"https://junglewise.ai/threats/cve-2026-26825-libxls-use-of-uninitialized-memory-in-xls-parseworkbook"},{"cve":"CVE-2026-26824","cvss":0,"slug":"cve-2026-26824-libxls-use-of-uninitialized-memory-in-ole-container-parser","title":"libxls use of uninitialized memory in OLE container parser","severity":"info","exploited":false,"published_at":"2026-06-03T20:16:18.677+00:00","url":"https://junglewise.ai/threats/cve-2026-26824-libxls-use-of-uninitialized-memory-in-ole-container-parser"}],"vendor":{"hub":true,"name":"Libxls","slug":"libxls","homepage":"https://github.com/libxls/libxls","description":"The developer and maintainer of the libxls C library.","url":"https://junglewise.ai/threats/vendors/libxls"},"weekly":[{"week":"2026-06-29","critical":0,"exploited":0,"vulnerabilities":0},{"week":"2026-07-06","critical":0,"exploited":0,"vulnerabilities":0},{"week":"2026-07-13","critical":0,"exploited":0,"vulnerabilities":0},{"week":"2026-07-20","critical":0,"exploited":0,"vulnerabilities":0},{"week":"2026-07-27","critical":0,"exploited":0,"vulnerabilities":0},{"week":"2026-08-03","critical":0,"exploited":0,"vulnerabilities":0},{"week":"2026-08-10","critical":0,"exploited":0,"vulnerabilities":0},{"week":"2026-08-17","critical":0,"exploited":0,"vulnerabilities":0},{"week":"2026-08-24","critical":0,"exploited":0,"vulnerabilities":0},{"week":"2026-08-31","critical":0,"exploited":0,"vulnerabilities":0},{"week":"2026-09-07","critical":0,"exploited":0,"vulnerabilities":2},{"week":"2026-09-14","critical":0,"exploited":0,"vulnerabilities":0},{"week":"2026-09-21","critical":0,"exploited":0,"vulnerabilities":0}],"most_severe":[{"cve":"CVE-2026-79591","cvss":7.8,"epss":0.0017,"slug":"cve-2026-79591-libxls-heap-buffer-overflow-and-use-after-free-in-xls-getcss","title":"libxls heap-buffer-overflow and use-after-free in xls_getCSS","severity":"high","exploited":false,"published_at":"2026-09-10T21:17:46.933+00:00","url":"https://junglewise.ai/threats/cve-2026-79591-libxls-heap-buffer-overflow-and-use-after-free-in-xls-getcss"},{"cve":"CVE-2026-79592","cvss":7.5,"epss":0.0043,"slug":"cve-2026-79592-libxls-out-of-bounds-read-in-xls-dumpsummary","title":"libxls out-of-bounds read in xls_dumpSummary","severity":"high","exploited":false,"published_at":"2026-09-10T21:17:47.047+00:00","url":"https://junglewise.ai/threats/cve-2026-79592-libxls-out-of-bounds-read-in-xls-dumpsummary"},{"cve":"CVE-2026-26824","cvss":0,"slug":"cve-2026-26824-libxls-use-of-uninitialized-memory-in-ole-container-parser","title":"libxls use of uninitialized memory in OLE container parser","severity":"info","exploited":false,"published_at":"2026-06-03T20:16:18.677+00:00","url":"https://junglewise.ai/threats/cve-2026-26824-libxls-use-of-uninitialized-memory-in-ole-container-parser"},{"cve":"CVE-2026-26825","slug":"cve-2026-26825-libxls-use-of-uninitialized-memory-in-xls-parseworkbook","title":"libxls use-of-uninitialized memory in xls_parseWorkBook","severity":"info","exploited":false,"published_at":"2026-06-03T20:16:18.797+00:00","url":"https://junglewise.ai/threats/cve-2026-26825-libxls-use-of-uninitialized-memory-in-xls-parseworkbook"}],"generated_at":"2026-09-26T09:11:00.170868+00:00","technologies":[{"name":"Libxls","slug":"libxls","vulnerabilities":4,"url":"https://junglewise.ai/threats/technologies/libxls"}]}