{"schemaVersion":3,"id":"CVE-2026-66758","aliases":["UBUNTU-CVE-2026-66758","DEBIAN-CVE-2026-66758"],"status":"published","duplicateOf":null,"title":null,"description":"A flaw was found in the file-fits plugin in GIMP. When processing a FITS image file, the plugin calculates memory allocation sizes using signed 32-bit integers for width and height. If a crafted file sets both values to large values, their product exceeds 2^31 and overflows, resulting in an undersized heap-based buffer allocation. This integer overflow issue results in a heap-based buffer overflow when cfitsio subsequently writes a full row of pixels in the buffer, causing memory corruption, potentially leading to arbitrary code execution or a denial of service.","dates":{"published":"2026-07-27T19:07:12.789Z","modified":"2026-10-12T02:08:13.155Z","reserved":null,"kevAdded":[],"kevDue":[]},"cvss":{"headline":{"score":7.8,"severity":"high","version":"3.1","versionLabel":"v3.1","source":"CVE.org","vector":"CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H","computed":false,"selection":"backend-summary"},"metrics":[{"version":"3.1","versionLabel":"v3.1","source":"CVE.org","score":7.8,"severity":"high","vector":"CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H","exploitability":null,"impact":null,"computed":false},{"version":"3.1","versionLabel":"v3.1","source":"OSV · 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Reference (gitlab.gnome.org)","source":"reference","url":"https://gitlab.gnome.org/GNOME/gimp/-/issues/16528","maturity":"unknown","reliabilityScore":0.2,"verified":false,"type":null,"platforms":[],"requiresAuth":null,"exploitdb":null,"metasploit":null}],"exploitCount":1,"weaknesses":[{"id":"CWE-190","name":"Integer Overflow or Wraparound","description":"The product performs a calculation that can\n         produce an integer overflow or wraparound when the logic\n         assumes that the resulting value will always be larger than\n         the original value. This occurs when an integer value is\n         incremented to a value that is too large to store in the\n         associated representation. When this occurs, the value may\n         become a very small or negative number.","type":"weakness","status":"Stable","abstraction":"Base","likelihoodOfExploit":"Medium","url":"https://cwe.mitre.org/data/definitions/190.html"}],"affected":[{"vendor":"debian","product":"gimp","name":"gimp","label":"gimp","ecosystem":"Debian","cpePart":null,"purl":"pkg:deb/debian/gimp","purlType":"deb","versions":[{"text":"All versions","noFixRecorded":true,"fixedIn":null},{"text":"< 3.0.4-3+deb13u10","noFixRecorded":false,"fixedIn":null},{"text":"< 3.2.6-1","noFixRecorded":false,"fixedIn":null}],"versionsText":"All versions (No fix recorded) | < 3.0.4-3+deb13u10 | < 3.2.6-1","eol":null,"hubHref":null},{"vendor":"ubuntu","product":"gimp","name":"gimp","label":"gimp","ecosystem":"Ubuntu","cpePart":null,"purl":"pkg:deb/ubuntu/gimp","purlType":"deb","versions":[{"text":"All versions","noFixRecorded":true,"fixedIn":null}],"versionsText":"All versions (No fix recorded)","eol":null,"hubHref":null},{"vendor":"gimp","product":"gimp","name":"gimp","label":"gimp","ecosystem":null,"cpePart":"a","purl":null,"purlType":null,"versions":[{"text":"3.0.8","noFixRecorded":false,"fixedIn":null},{"text":"3.2.4","noFixRecorded":false,"fixedIn":null}],"versionsText":"3.0.8 | 3.2.4","eol":null,"hubHref":"/vendor/gimp/gimp"},{"vendor":"redhat","product":"enterprise_linux","name":"enterprise linux","label":"enterprise_linux","ecosystem":null,"cpePart":"o","purl":null,"purlType":null,"versions":[{"text":"6.0","noFixRecorded":false,"fixedIn":null},{"text":"7.0","noFixRecorded":false,"fixedIn":null},{"text":"8.0","noFixRecorded":false,"fixedIn":null},{"text":"9.0","noFixRecorded":false,"fixedIn":null}],"versionsText":"6.0 | 7.0 | 8.0 | 9.0","eol":{"isEol":true,"eolDate":"2020-11-30T00:00:00.000Z","matchMethod":"cpe","cycle":{"name":"6","label":"6 (ELS)","eolFrom":"2020-11-30T00:00:00.000Z","isLts":true,"isMaintained":false,"latestVersion":"6.10"},"product":{"name":"rhel","label":"Red Hat Enterprise Linux","category":"os"}},"hubHref":"/vendor/redhat/enterprise_linux"}],"affectedCount":4,"eol":{"hasEol":true,"count":1},"references":[{"url":"https://access.redhat.com/errata/RHSA-2026:50817","label":"access.redhat.com/errata/RHSA-2026:50817","hostname":"access.redhat.com","tags":["Vendor Advisory","X Refsource REDHAT","Issue Tracking"]},{"url":"https://access.redhat.com/errata/RHSA-2026:62507","label":"access.redhat.com/errata/RHSA-2026:62507","hostname":"access.redhat.com","tags":["Vendor Advisory","X Refsource REDHAT"]},{"url":"https://access.redhat.com/errata/RHSA-2026:73768","label":"access.redhat.com/errata/RHSA-2026:73768","hostname":"access.redhat.com","tags":["Vendor Advisory","X Refsource REDHAT"]},{"url":"https://access.redhat.com/errata/RHSA-2026:80509","label":"access.redhat.com/errata/RHSA-2026:80509","hostname":"access.redhat.com","tags":["Vendor Advisory","X Refsource REDHAT"]},{"url":"https://access.redhat.com/security/cve/CVE-2026-66758","label":"access.redhat.com/security/cve/CVE-2026-66758","hostname":"access.redhat.com","tags":["VDB Entry","X Refsource REDHAT","Vendor Advisory"]},{"url":"https://bugzilla.redhat.com/show_bug.cgi?id=2507475","label":"bugzilla.redhat.com/show_bug.cgi?id=2507475","hostname":"bugzilla.redhat.com","tags":["Issue Tracking","X Refsource REDHAT","Vendor Advisory"]},{"url":"https://gitlab.gnome.org/GNOME/gimp/-/issues/16528","label":"gitlab.gnome.org/GNOME/gimp/-/issues/16528","hostname":"gitlab.gnome.org","tags":["REPORT","Exploit","Issue Tracking","Vendor Advisory"]},{"url":"https://ubuntu.com/security/CVE-2026-66758","label":"ubuntu.com/security/CVE-2026-66758","hostname":"ubuntu.com","tags":["REPORT"]},{"url":"https://www.cve.org/CVERecord?id=CVE-2026-66758","label":"www.cve.org/CVERecord?id=CVE-2026-66758","hostname":"www.cve.org","tags":["REPORT"]},{"url":"https://security-tracker.debian.org/tracker/CVE-2026-66758","label":"security-tracker.debian.org/tracker/CVE-2026-66758","hostname":"security-tracker.debian.org","tags":["Advisory"]}],"lineage":{"upstream":[],"downstream":["OPENSUSE-SU-2026:11449-1","OPENSUSE-SU-2026:21521-1","RHSA-2026:50817","RHSA-2026:62507","RHSA-2026:73768","RHSA-2026:80509"],"duplicates":[],"related":["OPENSUSE-SU-2026:11449-1","OPENSUSE-SU-2026:21521-1"]},"timeline":[{"kind":"published","date":"2026-07-27T19:07:12.789Z","label":"Published","detail":"Vulnerability first disclosed.","source":null},{"kind":"modified","date":"2026-10-12T02:08:13.155Z","label":"Last modified","detail":"Vulnerability information updated.","source":null}],"risk":{"score":41,"level":"medium","profile":"Default","thresholds":{"critical":75,"high":50,"medium":25,"low":10}},"meta":{"dataAsOf":"2026-10-21T09:08:17.552Z","stale":false,"partial":false}}