{"id":"CVE-2026-52491","aliases":["AZL-98204","BELL-CVE-2026-52491","DEBIAN-CVE-2026-52491","EUVD-2026-66177","GHSA-28v3-93mm-ccfv","OESA-2026-3654","OESA-2026-3655","RHSA-2026:53467","UBUNTU-CVE-2026-52491"],"status":"published","title":"An issue in libtiff 85f2ac8e0b01cb7db2bbecf4a3b891bdbef67938 allows an attacker to execute...","description":"An issue in libtiff 85f2ac8e0b01cb7db2bbecf4a3b891bdbef67938 allows an attacker to execute arbitrary code via the libtiff/tools/thumbnail.c: main() component","severity":{"version":"3.1","score":8.4,"vector":"CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","level":"high","assessor":"adp","from":"cve"},"epss":{"day":"2026-11-12","score":0.00192,"percentile":0.09004,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":true},"cwes":["CWE-190"],"published":"2026-08-25T00:00:00Z","modified":"2026-10-28T10:55:27Z","fixes":[{"ecosystem":"Debian:14","package":"tiff","fixed_in":["4.7.2-1"],"sources":["osv"]}],"affected":[{"source":"osv","ecosystem":"Azure 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Hat:hummingbird:1","package":"libtiff","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"0:4.7.2-2.hum1"}]}],"bundled":4},{"source":"osv","ecosystem":"Red Hat:hummingbird:1","package":"libtiff-devel","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"0:4.7.2-2.hum1"}]}],"bundled":4},{"source":"osv","ecosystem":"Red Hat:hummingbird:1","package":"libtiff-static","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"0:4.7.2-2.hum1"}]}],"bundled":4},{"source":"osv","ecosystem":"Red Hat:hummingbird:1","package":"libtiff-tools","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"0:4.7.2-2.hum1"}]}],"bundled":4}],"references":[{"url":"https://gitlab.com/libtiff/libtiff/-/commit/9ce4d089bcf25496663776d9e6336738112f09a3","tags":["fix","article"]},{"url":"https://gist.github.com/okyfh/5cc53fa67d229017231cf18c91768bd9","tags":["web","article"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-52491","tags":["web","advisory"]},{"url":"https://github.com/advisories/GHSA-28v3-93mm-ccfv"},{"url":"https://docs.bell-sw.com/security/cves/CVE-2026-52491","tags":["advisory"]},{"url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/52xxx/CVE-2026-52491.json","tags":["advisory"]},{"url":"https://security-tracker.debian.org/tracker/CVE-2026-52491","tags":["advisory"]},{"url":"https://www.openeuler.org/zh/security/security-bulletins/detail/?id=openEuler-SA-2026-3654","tags":["advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-52490","tags":["advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-52492","tags":["advisory"]},{"url":"https://www.openeuler.org/zh/security/security-bulletins/detail/?id=openEuler-SA-2026-3655","tags":["advisory"]},{"url":"https://access.redhat.com/errata/RHSA-2026:53467","tags":["advisory"]},{"url":"https://images.redhat.com/","tags":["article"]},{"url":"https://access.redhat.com/security/cve/CVE-2026-52492","tags":["report"]},{"url":"https://access.redhat.com/security/updates/classification/","tags":["article"]},{"url":"https://access.redhat.com/security/cve/CVE-2026-52490","tags":["report"]},{"url":"https://access.redhat.com/security/cve/CVE-2026-52491","tags":["report"]},{"url":"https://access.redhat.com/security/cve/CVE-2026-18495","tags":["report"]},{"url":"https://security.access.redhat.com/data/csaf/v2/advisories/2026/rhsa-2026_53467.json","tags":["advisory"]},{"url":"https://bugzilla.redhat.com/show_bug.cgi?id=2531414","tags":["report"]},{"url":"https://www.cve.org/CVERecord?id=CVE-2026-18495","tags":["advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-18495","tags":["advisory"]},{"url":"https://gitlab.com/libtiff/libtiff/-/merge_requests/729","tags":["article"]},{"url":"https://gitlab.com/libtiff/libtiff/-/tree/67fd283d276f09db54dc39b9ef7b979d4b45c4b1","tags":["article"]},{"url":"https://bugzilla.redhat.com/show_bug.cgi?id=2523148","tags":["report"]},{"url":"https://www.cve.org/CVERecord?id=CVE-2026-52490","tags":["advisory"]},{"url":"https://gist.github.com/okyfh/122c2d72e991a78c8af80a3af3be8671","tags":["article"]},{"url":"https://gitlab.com/libtiff/libtiff/-/work_items/846","tags":["article"]},{"url":"https://bugzilla.redhat.com/show_bug.cgi?id=2524131","tags":["report"]},{"url":"https://www.cve.org/CVERecord?id=CVE-2026-52491","tags":["advisory","report"]},{"url":"https://bugzilla.redhat.com/show_bug.cgi?id=2523134","tags":["report"]},{"url":"https://www.cve.org/CVERecord?id=CVE-2026-52492","tags":["advisory"]},{"url":"https://gist.github.com/okyfh/fbc5a37cade358361d80f6a498560cfa","tags":["article"]},{"url":"https://gitlab.com/libtiff/libtiff/-/commit/94affc5cf54111312f9891eb77accb93eebc28d7","tags":["article"]},{"url":"https://ubuntu.com/security/CVE-2026-52491","tags":["report"]}],"sources":{"cve":[{"id":"CVE-2026-52491","description":"An issue in libtiff 85f2ac8e0b01cb7db2bbecf4a3b891bdbef67938 allows an attacker to execute arbitrary code via the libtiff/tools/thumbnail.c: main() component","status":"published","published":"2026-08-25T00:00:00Z","modified":"2026-08-31T15:57:48.468Z","cvss":[{"version":"3.1","score":8.4,"vector":"CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","level":"high","assessor":"adp"}],"cwes":["CWE-190"],"updated_at":"2026-11-02T13:40:57.334596Z"}],"euvd":[{"id":"EUVD-2026-66177","description":"An issue in libtiff 85f2ac8e0b01cb7db2bbecf4a3b891bdbef67938 allows an attacker to execute arbitrary code via the libtiff/tools/thumbnail.c: main() component","status":"published","published":"2026-08-25T00:00:00Z","modified":"2026-08-31T15:57:48Z","cvss":[{"version":"3.1","score":8.4,"vector":"CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","level":"high"}],"updated_at":"2026-11-02T18:01:20.704822Z"}],"ghsa":[{"id":"GHSA-28v3-93mm-ccfv","title":"An issue in libtiff 85f2ac8e0b01cb7db2bbecf4a3b891bdbef67938 allows an attacker to execute...","description":"An issue in libtiff 85f2ac8e0b01cb7db2bbecf4a3b891bdbef67938 allows an attacker to execute arbitrary code via the libtiff/tools/thumbnail.c: main() component","status":"published","published":"2026-08-25T21:31:30Z","modified":"2026-08-31T18:31:18Z","cvss":[{"version":"3.1","score":8.4,"vector":"CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","level":"high"}],"cwes":["CWE-190"],"updated_at":"2026-11-02T15:11:11.297642Z"}],"nvd":[{"id":"CVE-2026-52491","description":"An issue in libtiff 85f2ac8e0b01cb7db2bbecf4a3b891bdbef67938 allows an attacker to execute arbitrary code via the libtiff/tools/thumbnail.c: main() component","status":"published","published":"2026-08-25T21:17:01.467Z","modified":"2026-09-09T16:03:22.897Z","cvss":[{"version":"3.1","score":8.4,"vector":"CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","level":"high","assessor":"secondary"}],"cwes":["CWE-190"],"updated_at":"2026-11-02T14:12:41.347728Z"}],"osv":[{"id":"BELL-CVE-2026-52491","title":"CVE-2026-52491 does not affect BellSoft software","status":"withdrawn","published":"2026-08-29T06:03:53.240823Z","modified":"2026-09-06T07:15:24.594182992Z","cvss":[{"version":"3.1","score":8.4,"vector":"CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","level":"high"}],"updated_at":"2026-11-02T15:28:24.391068Z"},{"id":"CVE-2026-52491","description":"An issue in libtiff 85f2ac8e0b01cb7db2bbecf4a3b891bdbef67938 allows an attacker to execute arbitrary code via the libtiff/tools/thumbnail.c: main() component","status":"published","published":"2026-08-25T00:00:00Z","modified":"2026-10-28T10:55:27.572731854Z","cvss":[{"version":"3.1","score":8.4,"vector":"CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","level":"high"}],"updated_at":"2026-11-02T15:45:07.431113Z"},{"id":"DEBIAN-CVE-2026-52491","description":"An issue in libtiff 85f2ac8e0b01cb7db2bbecf4a3b891bdbef67938 allows an attacker to execute arbitrary code via the libtiff/tools/thumbnail.c: main() component","status":"published","published":"2026-08-25T21:17:01.467Z","modified":"2026-10-01T03:03:16.74700891Z","cvss":[{"version":"3.1","score":8.4,"vector":"CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","level":"high"}],"updated_at":"2026-11-02T15:45:56.877408Z"},{"id":"OESA-2026-3654","title":"libtiff security update","description":"This  provides support for the Tag Image File Format (TIFF), a widely used format for storing image data. The latest version of the TIFF specification is available on-line in several different formats.And contains command-line programs for manipulating TIFF format image files using the libtiff library.\r\n\r\nSecurity Fix(es):\n\nAn issue in libtiff allows an attacker to execute arbitrary code via the process_command_opts() function in tools/tiffcrop.c. The vulnerability is classified as CWE-94 (Code Injection), where the product constructs all or part of a code segment using externally-influenced input from an upstream component, but it does not neutralize or incorrectly neutralizes special elements that could modify the syntax or behavior of the intended code segment.(CVE-2026-52490)\n\nAn issue in libtiff 85f2ac8e0b01cb7db2bbecf4a3b891bdbef67938 allows an attacker to execute arbitrary code via the libtiff/tools/thumbnail.c: main() component(CVE-2026-52491)\n\nAn integer overflow in the libtiff rgb2ycbcr utility\u0026apos;s cvtRaster() function when computing strip buffer sizes can result in an undersized heap allocation and subsequent heap-based buffer overflow during YCbCr conversion of a crafted TIFF image.(CVE-2026-52492)","status":"published","published":"2026-09-05T15:03:32Z","modified":"2026-09-05T15:16:34.010009713Z","cvss":[{"version":"3.1","score":9.8,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","level":"critical"}],"updated_at":"2026-11-02T15:52:47.217107Z"},{"id":"OESA-2026-3655","title":"libtiff security update","description":"This  provides support for the Tag Image File Format (TIFF), a widely used format for storing image data. The latest version of the TIFF specification is available on-line in several different formats.And contains command-line programs for manipulating TIFF format image files using the libtiff library.\r\n\r\nSecurity Fix(es):\n\nAn issue in libtiff allows an attacker to execute arbitrary code via the process_command_opts() function in tools/tiffcrop.c. The vulnerability is classified as CWE-94 (Code Injection), where the product constructs all or part of a code segment using externally-influenced input from an upstream component, but it does not neutralize or incorrectly neutralizes special elements that could modify the syntax or behavior of the intended code segment.(CVE-2026-52490)\n\nAn issue in libtiff 85f2ac8e0b01cb7db2bbecf4a3b891bdbef67938 allows an attacker to execute arbitrary code via the libtiff/tools/thumbnail.c: main() component(CVE-2026-52491)\n\nAn integer overflow in the libtiff rgb2ycbcr utility\u0026apos;s cvtRaster() function when computing strip buffer sizes can result in an undersized heap allocation and subsequent heap-based buffer overflow during YCbCr conversion of a crafted TIFF image.(CVE-2026-52492)","status":"published","published":"2026-09-05T15:03:33Z","modified":"2026-09-05T15:16:34.008066533Z","cvss":[{"version":"3.1","score":9.8,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","level":"critical"}],"updated_at":"2026-11-02T15:52:47.217107Z"},{"id":"RHSA-2026:53467","title":"Red Hat Security Advisory: Red Hat Hardened Images RPMs bug fix and enhancement update","status":"published","published":"2026-08-27T10:14:37Z","modified":"2026-10-08T10:14:35Z","cvss":[{"version":"3.1","score":7.3,"vector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:R/S:U/C:H/I:H/A:H","level":"high"}],"updated_at":"2026-11-02T15:53:21.457353Z"},{"id":"UBUNTU-CVE-2026-52491","description":"An issue in libtiff 85f2ac8e0b01cb7db2bbecf4a3b891bdbef67938 allows an attacker to execute arbitrary code via the libtiff/tools/thumbnail.c: main() component","status":"withdrawn","published":"2026-08-25T21:17:00Z","modified":"2026-09-11T20:50:21.13990687Z","cvss":[{"version":"3.1","score":8.4,"vector":"CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","level":"high"}],"updated_at":"2026-11-02T16:56:33.391918Z"},{"id":"AZL-98204","title":"CVE-2026-52491 affecting package libtiff 4.6.0-14","description":"An issue in libtiff 85f2ac8e0b01cb7db2bbecf4a3b891bdbef67938 allows an attacker to execute arbitrary code via the libtiff/tools/thumbnail.c: main() component","status":"published","published":"2026-08-25T21:17:01Z","modified":"2026-09-08T05:27:28Z","updated_at":"2026-11-02T15:28:12.313414Z"}]}}