{"id":"CVE-2026-82035","aliases":["DEBIAN-CVE-2026-82035","EUVD-2026-77764","GHSA-434w-92hw-f2m3","UBUNTU-CVE-2026-82035","openSUSE-SU-2026:11824-1","openSUSE-SU-2026:21912-1"],"status":"published","title":"PyMuPDF 1.28.2 Path Traversal via extract_objects() Font Branch","description":"PyMuPDF through 1.28.2, fixed in commit b2c8f3a, contains a path traversal vulnerability in the font branch of extract_objects() in src/__main__.py, where the output filename is constructed by joining a document-controlled BaseFont name directly onto the user-supplied output directory without stripping path separators or dot-dot sequences. Attackers can supply a crafted PDF, EPUB, XPS, or FB2 file with a BaseFont name containing encoded path separators that decode to ../ sequences or absolute paths, causing arbitrary file writes outside the intended output directory without requiring authentication or elevated privileges.","severity":{"version":"4.0","score":7.1,"vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:N/VI:H/VA:L/SC:N/SI:N/SA:N","level":"high","assessor":"cna","from":"cve"},"epss":{"day":"2026-11-09","score":0.00316,"percentile":0.24676,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":true},"cwes":["CWE-22"],"published":"2026-09-14T18:38:34Z","modified":"2026-10-28T02:30:42Z","fixes":[{"ecosystem":"openSUSE:Tumbleweed","package":"python-PyMuPDF","fixed_in":["1.28.2-1.1"],"sources":["osv"]},{"ecosystem":"openSUSE:Leap 16.0","package":"python-PyMuPDF","fixed_in":["1.21.1-lp160.6.1"],"sources":["osv"]}],"affected":[{"source":"osv","ecosystem":"Debian:12","package":"pymupdf","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["1.21.1+ds1-1","1.22.5+ds1-1","1.23.7+ds1-1","1.24.2+ds1-1","1.24.2+ds1-2","1.24.2+ds1-3","1.25.0+ds1-1","1.25.0+ds1-2","1.25.4+ds1-1","1.25.4+ds1-2","1.25.4+ds1-3","1.25.4+ds1-4","1.26.7+ds1-1","1.28.2+ds1-1"]},{"source":"osv","ecosystem":"Debian:13","package":"pymupdf","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["1.25.4+ds1-3","1.25.4+ds1-3+deb13u1","1.25.4+ds1-4","1.26.7+ds1-1","1.28.2+ds1-1"]},{"source":"osv","ecosystem":"Debian:14","package":"pymupdf","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["1.25.4+ds1-3","1.25.4+ds1-4","1.26.7+ds1-1","1.28.2+ds1-1"]},{"source":"osv","ecosystem":"Ubuntu:20.04:LTS","package":"pymupdf","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["1.16.11-1"]},{"source":"osv","ecosystem":"Ubuntu:22.04:LTS","package":"pymupdf","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["1.17.4+ds1-2build2","1.17.4+ds1-2build3","1.19.2+ds1-1ubuntu1"]},{"source":"osv","ecosystem":"Ubuntu:24.04:LTS","package":"pymupdf","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["1.22.5+ds1-1","1.22.5+ds1-1build1","1.22.5+ds1-1build2","1.23.7+ds1-1ubuntu1","1.23.7+ds1-1ubuntu2"]},{"source":"osv","ecosystem":"Ubuntu:26.10","package":"pymupdf","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["1.26.7+ds1-1build1"]},{"source":"osv","ecosystem":"Ubuntu:26.04:LTS","package":"pymupdf","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["1.25.4+ds1-4","1.26.7+ds1-1","1.26.7+ds1-1build1"]},{"source":"osv","ecosystem":"openSUSE:Tumbleweed","package":"python-PyMuPDF","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"1.28.2-1.1"}]}]},{"source":"osv","ecosystem":"openSUSE:Leap 16.0","package":"python-PyMuPDF","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"1.21.1-lp160.6.1"}]}]}],"products":[{"vendor":"artifex software inc. *pymupdf*","product":"pymupdf"},{"vendor":"pymupdf","product":"pymupdf"}],"references":[{"url":"https://github.com/pymupdf/PyMuPDF/commit/b2c8f3a859fed35c379a44df566f770dc3e18605","tags":["patch","fix"]},{"url":"https://www.vulncheck.com/advisories/pymupdf-path-traversal-via-extract-objects-font-branch","tags":["third-party-advisory","advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-82035","tags":["advisory"]},{"url":"https://github.com/advisories/GHSA-434w-92hw-f2m3"},{"url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/82xxx/CVE-2026-82035.json","tags":["advisory"]},{"url":"https://github.com/pymupdf/PyMuPDF","tags":["package"]},{"url":"https://security-tracker.debian.org/tracker/CVE-2026-82035","tags":["advisory"]},{"url":"https://ubuntu.com/security/CVE-2026-82035","tags":["report"]},{"url":"https://www.cve.org/CVERecord?id=CVE-2026-82035","tags":["report"]},{"url":"","tags":["advisory"]},{"url":"https://www.suse.com/security/cve/CVE-2026-82035","tags":["web"]},{"url":"https://bugzilla.suse.com/1280486","tags":["report"]}],"sources":{"cve":[{"id":"CVE-2026-82035","title":"PyMuPDF 1.28.2 Path Traversal via extract_objects() Font Branch","description":"PyMuPDF through 1.28.2, fixed in commit b2c8f3a, contains a path traversal vulnerability in the font branch of extract_objects() in src/__main__.py, where the output filename is constructed by joining a document-controlled BaseFont name directly onto the user-supplied output directory without stripping path separators or dot-dot sequences. Attackers can supply a crafted PDF, EPUB, XPS, or FB2 file with a BaseFont name containing encoded path separators that decode to ../ sequences or absolute paths, causing arbitrary file writes outside the intended output directory without requiring authentication or elevated privileges.","status":"published","published":"2026-09-14T18:38:34.837Z","modified":"2026-09-14T19:11:56.736Z","cvss":[{"version":"4.0","score":7.1,"vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:N/VI:H/VA:L/SC:N/SI:N/SA:N","level":"high","assessor":"cna"},{"version":"3.1","score":7.1,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:H/A:L","level":"high","assessor":"cna"}],"cwes":["CWE-22"],"updated_at":"2026-11-02T13:40:35.004553Z"}],"euvd":[{"id":"EUVD-2026-77764","description":"PyMuPDF through 1.28.2, fixed in commit b2c8f3a, contains a path traversal vulnerability in the font branch of extract_objects() in src/__main__.py, where the output filename is constructed by joining a document-controlled BaseFont name directly onto the user-supplied output directory without stripping path separators or dot-dot sequences. Attackers can supply a crafted PDF, EPUB, XPS, or FB2 file with a BaseFont name containing encoded path separators that decode to ../ sequences or absolute paths, causing arbitrary file writes outside the intended output directory without requiring authentication or elevated privileges.","status":"published","published":"2026-09-14T18:38:34Z","modified":"2026-09-14T19:11:56Z","cvss":[{"version":"4.0","score":7.1,"vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:N/VI:H/VA:L/SC:N/SI:N/SA:N","level":"high"}],"updated_at":"2026-11-02T17:28:19.730872Z"}],"ghsa":[{"id":"GHSA-434w-92hw-f2m3","title":"PyMuPDF through 1.28.2, fixed in commit b2c8f3a, contains a path traversal vulnerability in the...","description":"PyMuPDF through 1.28.2, fixed in commit b2c8f3a, contains a path traversal vulnerability in the font branch of extract_objects() in src/__main__.py, where the output filename is constructed by joining a document-controlled BaseFont name directly onto the user-supplied output directory without stripping path separators or dot-dot sequences. Attackers can supply a crafted PDF, EPUB, XPS, or FB2 file with a BaseFont name containing encoded path separators that decode to ../ sequences or absolute paths, causing arbitrary file writes outside the intended output directory without requiring authentication or elevated privileges.","status":"published","published":"2026-09-14T21:31:41Z","modified":"2026-09-14T21:31:49Z","cvss":[{"version":"4.0","score":7.1,"vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:N/VI:H/VA:L/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X","level":"high"},{"version":"3.1","score":7.1,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:H/A:L","level":"high"}],"cwes":["CWE-22"],"updated_at":"2026-11-02T15:11:52.325814Z"}],"nvd":[{"id":"CVE-2026-82035","description":"PyMuPDF through 1.28.2, fixed in commit b2c8f3a, contains a path traversal vulnerability in the font branch of extract_objects() in src/__main__.py, where the output filename is constructed by joining a document-controlled BaseFont name directly onto the user-supplied output directory without stripping path separators or dot-dot sequences. Attackers can supply a crafted PDF, EPUB, XPS, or FB2 file with a BaseFont name containing encoded path separators that decode to ../ sequences or absolute paths, causing arbitrary file writes outside the intended output directory without requiring authentication or elevated privileges.","status":"published","published":"2026-09-14T19:17:50.38Z","modified":"2026-09-24T20:44:42.207Z","cvss":[{"version":"4.0","score":7.1,"vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:N/VI:H/VA:L/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X","level":"high","assessor":"secondary"},{"version":"3.1","score":7.1,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:H/A:L","level":"high","assessor":"primary"}],"cwes":["CWE-22"],"updated_at":"2026-11-02T14:12:46.980627Z"}],"osv":[{"id":"CVE-2026-82035","title":"PyMuPDF 1.28.2 Path Traversal via extract_objects() Font Branch","description":"PyMuPDF through 1.28.2, fixed in commit b2c8f3a, contains a path traversal vulnerability in the font branch of extract_objects() in src/__main__.py, where the output filename is constructed by joining a document-controlled BaseFont name directly onto the user-supplied output directory without stripping path separators or dot-dot sequences. Attackers can supply a crafted PDF, EPUB, XPS, or FB2 file with a BaseFont name containing encoded path separators that decode to ../ sequences or absolute paths, causing arbitrary file writes outside the intended output directory without requiring authentication or elevated privileges.","status":"published","published":"2026-09-14T18:38:34.837Z","modified":"2026-10-28T02:30:42.113979196Z","cvss":[{"version":"4.0","score":7.1,"vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:N/VI:H/VA:L/SC:N/SI:N/SA:N","level":"high"}],"cwes":["CWE-22"],"updated_at":"2026-11-02T15:45:18.131258Z"},{"id":"DEBIAN-CVE-2026-82035","description":"PyMuPDF through 1.28.2, fixed in commit b2c8f3a, contains a path traversal vulnerability in the font branch of extract_objects() in src/__main__.py, where the output filename is constructed by joining a document-controlled BaseFont name directly onto the user-supplied output directory without stripping path separators or dot-dot sequences. Attackers can supply a crafted PDF, EPUB, XPS, or FB2 file with a BaseFont name containing encoded path separators that decode to ../ sequences or absolute paths, causing arbitrary file writes outside the intended output directory without requiring authentication or elevated privileges.","status":"published","published":"2026-09-14T19:17:50.38Z","modified":"2026-09-25T08:47:20.800466448Z","cvss":[{"version":"3.1","score":7.1,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:H/A:L","level":"high"}],"updated_at":"2026-11-02T15:46:04.577397Z"},{"id":"UBUNTU-CVE-2026-82035","description":"PyMuPDF through 1.28.2, fixed in commit b2c8f3a, contains a path traversal vulnerability in the font branch of extract_objects() in src/__main__.py, where the output filename is constructed by joining a document-controlled BaseFont name directly onto the user-supplied output directory without stripping path separators or dot-dot sequences. Attackers can supply a crafted PDF, EPUB, XPS, or FB2 file with a BaseFont name containing encoded path separators that decode to ../ sequences or absolute paths, causing arbitrary file writes outside the intended output directory without requiring authentication or elevated privileges.","status":"published","published":"2026-09-14T19:17:00Z","modified":"2026-10-17T13:01:11.121175323Z","cvss":[{"version":"3.1","score":7.1,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:H/A:L","level":"high"},{"version":"4.0","score":7.1,"vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:N/VI:H/VA:L/SC:N/SI:N/SA:N","level":"high"}],"updated_at":"2026-11-02T16:57:22.213888Z"},{"id":"openSUSE-SU-2026:11824-1","title":"python313-PyMuPDF-1.28.2-1.1 on GA media","description":"These are all security issues fixed in the python313-PyMuPDF-1.28.2-1.1 package on the GA media of openSUSE Tumbleweed.","status":"published","published":"2026-09-19T00:00:00Z","modified":"2026-09-20T16:15:03.271948921Z","updated_at":"2026-11-02T16:58:39.516824Z"},{"id":"openSUSE-SU-2026:21912-1","title":"Security update for python-PyMuPDF","description":"This update for python-PyMuPDF fixes the following issues:\n\nChanges in python-PyMuPDF:\n\n- CVE-2026-82035: a path traversal vulnerability in the font branch\n  of extract_objects() in src/__main__.py (bsc#1280486)\n","status":"published","published":"2026-09-22T14:30:52Z","modified":"2026-09-25T18:23:13.228013941Z","updated_at":"2026-11-02T16:58:42.426393Z"}]}}