{"id":"CVE-2026-9100","aliases":["ALPINE-CVE-2026-9100","DEBIAN-CVE-2026-9100","EUVD-2026-31132","GHSA-87jr-c2qj-3qrg","UBUNTU-CVE-2026-9100"],"status":"published","title":"Heap memory out of bounds read and crash in C Driver legacy GridFS file reader","description":"The MongoDB C Driver's legacy GridFS API accepts malformed file metadata from the database without adequate validation. Crafted documents in a GridFS collection may cause any application that reads those files via the legacy API to either crash (via a division-by-zero) or silently leak process memory contents (via an out-of-bounds read).","severity":{"version":"4.0","score":6,"vector":"CVSS:4.0/AV:N/AC:L/AT:P/PR:L/UI:N/VC:L/VI:N/VA:H/SC:N/SI:N/SA:N","level":"medium","assessor":"cna","from":"cve"},"epss":{"day":"2026-11-09","score":0.00301,"percentile":0.23018,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":true},"cwes":["CWE-1285"],"published":"2026-05-20T15:55:13Z","modified":"2026-11-03T06:33:04Z","fixes":[{"ecosystem":"Alpine:v3.24","package":"mongo-c-driver","fixed_in":["1.30.14-r0"],"sources":["osv"]},{"ecosystem":"Debian:12","package":"mongo-c-driver","fixed_in":["1.23.1-1+deb12u3"],"sources":["osv"]},{"ecosystem":"Debian:13","package":"mongo-c-driver","fixed_in":["1.30.4-1+deb13u2"],"sources":["osv"]},{"ecosystem":"Debian:14","package":"mongo-c-driver","fixed_in":["2.2.4-1"],"sources":["osv"]}],"affected":[{"source":"osv","ecosystem":"Alpine:v3.24","package":"mongo-c-driver","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"1.30.14-r0"}]}]},{"source":"osv","ecosystem":"Debian:12","package":"mongo-c-driver","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"1.23.1-1+deb12u3"}]}],"versions":["1.23.1-1","1.23.1-1+deb12u1","1.23.1-1+deb12u2"]},{"source":"osv","ecosystem":"Debian:13","package":"mongo-c-driver","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"1.30.4-1+deb13u2"}]}],"versions":["1.30.4-1","1.30.4-1+deb13u1"]},{"source":"osv","ecosystem":"Debian:14","package":"mongo-c-driver","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"2.2.4-1"}]}],"versions":["1.30.4-1","2.0.2-1","2.1.0-1","2.1.1-1","2.1.2-1","2.2.0-1","2.2.1-1","2.2.2-1","2.2.3-1"]},{"source":"osv","ecosystem":"Ubuntu:Pro:20.04:LTS","package":"mongo-c-driver","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["1.15.0-1","1.15.1-1","1.15.2-1","1.16.0-1","1.16.1-1","1.16.1-1build1","1.16.1-1build2","1.16.1-1ubuntu0.1~esm1"]},{"source":"osv","ecosystem":"Ubuntu:Pro:22.04:LTS","package":"mongo-c-driver","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["1.18.0-1","1.19.1-1","1.19.2-1","1.20.0-1","1.20.0-1build1","1.20.1-1","1.21.0-1","1.21.0-1build1","1.21.0-1ubuntu0.1~esm1"]},{"source":"osv","ecosystem":"Ubuntu:Pro:24.04:LTS","package":"mongo-c-driver","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["1.24.3-1","1.24.4-1","1.25.1-1","1.25.2-1","1.25.4-1","1.26.0-1","1.26.0-1.1ubuntu1","1.26.0-1.1ubuntu2","1.26.0-1.1ubuntu2+esm1"]},{"source":"osv","ecosystem":"Ubuntu:25.10","package":"mongo-c-driver","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["1.30.2-1","1.30.4-1ubuntu1"]},{"source":"osv","ecosystem":"Ubuntu:26.10","package":"mongo-c-driver","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["2.2.2-1","2.3.1-1","2.3.2-1","2.3.3-1build1","2.5.0-1"]},{"source":"osv","ecosystem":"Ubuntu:26.04:LTS","package":"mongo-c-driver","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["1.30.4-1ubuntu1","2.2.0-1","2.2.1-1","2.2.2-1"]}],"products":[{"vendor":"mongodb","product":"c_driver"},{"vendor":"mongodb inc.","product":"c driver"},{"vendor":"mongodb, inc.","product":"c driver"}],"references":[{"url":"https://jira.mongodb.org/browse/CDRIVER-6281","tags":["issue-tracking","Vendor Advisory","report"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-9100","tags":["advisory"]},{"url":"https://github.com/advisories/GHSA-87jr-c2qj-3qrg"},{"url":"https://security.alpinelinux.org/vuln/CVE-2026-9100","tags":["advisory"]},{"url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/9xxx/CVE-2026-9100.json","tags":["advisory"]},{"url":"https://security-tracker.debian.org/tracker/CVE-2026-9100","tags":["advisory"]},{"url":"https://ubuntu.com/security/CVE-2026-9100","tags":["report"]},{"url":"https://www.cve.org/CVERecord?id=CVE-2026-9100","tags":["report"]}],"sources":{"cve":[{"id":"CVE-2026-9100","title":"Heap memory out of bounds read and crash in C Driver legacy GridFS file reader","description":"The MongoDB C Driver's legacy GridFS API accepts malformed file metadata from the database without adequate validation. Crafted documents in a GridFS collection may cause any application that reads those files via the legacy API to either crash (via a division-by-zero) or silently leak process memory contents (via an out-of-bounds read).","status":"published","published":"2026-05-20T15:55:13.154Z","modified":"2026-05-20T17:20:32.902Z","cvss":[{"version":"4.0","score":6,"vector":"CVSS:4.0/AV:N/AC:L/AT:P/PR:L/UI:N/VC:L/VI:N/VA:H/SC:N/SI:N/SA:N","level":"medium","assessor":"cna"},{"version":"3.1","score":5.9,"vector":"CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:L/I:N/A:H","level":"medium","assessor":"cna"}],"cwes":["CWE-1285"],"updated_at":"2026-11-02T13:42:26.790871Z"}],"euvd":[{"id":"EUVD-2026-31132","description":"The MongoDB C Driver's legacy GridFS API accepts malformed file metadata from the database without adequate validation. Crafted documents in a GridFS collection may cause any application that reads those files via the legacy API to either crash (via a division-by-zero) or silently leak process memory contents (via an out-of-bounds read).","status":"published","published":"2026-05-20T15:55:13Z","modified":"2026-05-20T17:20:32Z","cvss":[{"version":"4.0","score":6,"vector":"CVSS:4.0/AV:N/AC:L/AT:P/PR:L/UI:N/VC:L/VI:N/VA:H/SC:N/SI:N/SA:N","level":"medium"}],"updated_at":"2026-11-02T18:21:14.344818Z"}],"ghsa":[{"id":"GHSA-87jr-c2qj-3qrg","title":"The MongoDB C Driver's legacy GridFS API accepts malformed file metadata from the database...","description":"The MongoDB C Driver's legacy GridFS API accepts malformed file metadata from the database without adequate validation. Crafted documents in a GridFS collection may cause any application that reads those files via the legacy API to either crash (via a division-by-zero) or silently leak process memory contents (via an out-of-bounds read).","status":"published","published":"2026-05-20T18:31:36Z","modified":"2026-05-20T18:31:43Z","cvss":[{"version":"4.0","score":6,"vector":"CVSS:4.0/AV:N/AC:L/AT:P/PR:L/UI:N/VC:L/VI:N/VA:H/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":"medium"},{"version":"3.1","score":5.9,"vector":"CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:L/I:N/A:H","level":"medium"}],"cwes":["CWE-1285"],"updated_at":"2026-11-02T15:08:13.87243Z"}],"nvd":[{"id":"CVE-2026-9100","description":"The MongoDB C Driver's legacy GridFS API accepts malformed file metadata from the database without adequate validation. Crafted documents in a GridFS collection may cause any application that reads those files via the legacy API to either crash (via a division-by-zero) or silently leak process memory contents (via an out-of-bounds read).","status":"published","published":"2026-05-20T17:16:32.36Z","modified":"2026-09-24T17:30:59.373Z","cvss":[{"version":"4.0","score":6,"vector":"CVSS:4.0/AV:N/AC:L/AT:P/PR:L/UI:N/VC:L/VI:N/VA:H/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":"medium","assessor":"secondary"},{"version":"3.1","score":5.9,"vector":"CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:L/I:N/A:H","level":"medium","assessor":"secondary"},{"version":"3.1","score":7.1,"vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:H","level":"high","assessor":"primary"}],"cwes":["CWE-1285"],"updated_at":"2026-11-02T14:12:19.752984Z"}],"osv":[{"id":"ALPINE-CVE-2026-9100","description":"The MongoDB C Driver's legacy GridFS API accepts malformed file metadata from the database without adequate validation. Crafted documents in a GridFS collection may cause any application that reads those files via the legacy API to either crash (via a division-by-zero) or silently leak process memory contents (via an out-of-bounds read).","status":"published","published":"2026-05-20T17:16:32.36Z","modified":"2026-11-03T06:33:04.404933411Z","cvss":[{"version":"3.1","score":7.1,"vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:H","level":"high"}],"updated_at":"2026-11-03T07:15:37.282377Z"},{"id":"CVE-2026-9100","title":"Heap memory out of bounds read and crash in C Driver legacy GridFS file reader","description":"The MongoDB C Driver's legacy GridFS API accepts malformed file metadata from the database without adequate validation. Crafted documents in a GridFS collection may cause any application that reads those files via the legacy API to either crash (via a division-by-zero) or silently leak process memory contents (via an out-of-bounds read).","status":"published","published":"2026-05-20T15:55:13.154Z","modified":"2026-10-28T02:30:21.843324887Z","cvss":[{"version":"4.0","score":6,"vector":"CVSS:4.0/AV:N/AC:L/AT:P/PR:L/UI:N/VC:L/VI:N/VA:H/SC:N/SI:N/SA:N","level":"medium"}],"cwes":["CWE-1285"],"updated_at":"2026-11-02T15:45:20.269367Z"},{"id":"DEBIAN-CVE-2026-9100","description":"The MongoDB C Driver's legacy GridFS API accepts malformed file metadata from the database without adequate validation. Crafted documents in a GridFS collection may cause any application that reads those files via the legacy API to either crash (via a division-by-zero) or silently leak process memory contents (via an out-of-bounds read).","status":"published","published":"2026-05-20T17:16:32.36Z","modified":"2026-09-25T09:00:37.171843031Z","cvss":[{"version":"3.1","score":7.1,"vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:H","level":"high"}],"updated_at":"2026-11-02T15:46:06.410207Z"},{"id":"UBUNTU-CVE-2026-9100","description":"The MongoDB C Driver's legacy GridFS API accepts malformed file metadata from the database without adequate validation. Crafted documents in a GridFS collection may cause any application that reads those files via the legacy API to either crash (via a division-by-zero) or silently leak process memory contents (via an out-of-bounds read).","status":"published","published":"2026-05-20T17:16:00Z","modified":"2026-10-17T13:01:16.950270516Z","cvss":[{"version":"3.1","score":5.9,"vector":"CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:L/I:N/A:H","level":"medium"},{"version":"3.1","score":7.1,"vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:H","level":"high"},{"version":"4.0","score":6,"vector":"CVSS:4.0/AV:N/AC:L/AT:P/PR:L/UI:N/VC:L/VI:N/VA:H/SC:N/SI:N/SA:N","level":"medium"}],"updated_at":"2026-11-02T16:57:40.980117Z"}]}}