{"id":"CVE-2026-17501","aliases":["DEBIAN-CVE-2026-17501","EUVD-2026-49061","GHSA-h334-888w-8prr","UBUNTU-CVE-2026-17501"],"status":"published","title":"ggml-org llama.cpp JSON-Schema-to-GBNF Conversion json-schema-to-grammar.cpp transform recursion","description":"A flaw has been found in ggml-org llama.cpp e15efe0. This vulnerability affects the function transform of the file common/json-schema-to-grammar.cpp of the component JSON-Schema-to-GBNF Conversion. This manipulation causes uncontrolled recursion. The attack may be initiated remotely. The pull request to fix this issue awaits acceptance.","severity":{"version":"4.0","score":6.9,"vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N/E:X","level":"medium","assessor":"cna","from":"cve"},"epss":{"day":"2026-11-10","score":0.00724,"percentile":0.54389,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-400","CWE-404","CWE-674"],"published":"2026-07-27T00:30:11Z","modified":"2026-10-25T10:01:06Z","affected":[{"source":"osv","ecosystem":"Debian:14","package":"llama.cpp","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["10108+dfsg-1","10108+dfsg1-1","10108+dfsg1-2","10192+dfsg-1","10192+dfsg-2","10192+dfsg-2~exp1","10271+dfsg-1","10344+dfsg-1","10438+dfsg-1","1:0.1.2+dfsg-1~exp1","1:0.2.0+dfsg1-1","1:0.2.0+dfsg1-1~exp1","1:0.4.0+dfsg-1","1:0.4.1+dfsg-1","1:0.5.0+dfsg-1","1:0.5.0+dfsg-2","1:0.6.0+dfsg-1","1:0.6.0+dfsg-2","1:0.7.0+dfsg-1","1:0.7.0+dfsg-2","5151+dfsg-1~exp2","5151+dfsg-1~exp3","5318+dfsg-1","5318+dfsg-2","5713+dfsg-1","5760+dfsg-1","5760+dfsg-2","5760+dfsg-3","5760+dfsg-4","5882+dfsg-1","5882+dfsg-2","5882+dfsg-3","5882+dfsg-3~exp1","5882+dfsg-3~exp2","5882+dfsg-3~exp3","5882+dfsg-4","6641+dfsg-1","6641+dfsg-2","6641+dfsg-3","7593+dfsg-1","7593+dfsg-2","7593+dfsg-3","7965+dfsg-1","8064+dfsg-1","8064+dfsg-2","8461+dfsg-1","8611+dfsg-1","8681+dfsg-1","8870+dfsg-1","8941+dfsg-1","9009+dfsg-1","9071+dfsg-1","9190+dfsg-1","9413+dfsg-1","9555+dfsg-1","9601+dfsg-1","9721+dfsg-1","9895+dfsg-1","9895+dfsg-2","9895+dfsg-3","9951+dfsg-1","9951+dfsg-2","9951+dfsg-3"]},{"source":"osv","ecosystem":"Ubuntu:26.10","package":"llama.cpp","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["8681+dfsg-1","9721+dfsg-1ubuntu1","10438+dfsg-1","10438+dfsg-1ubuntu1"]},{"source":"osv","ecosystem":"Ubuntu:26.04:LTS","package":"llama.cpp","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["5882+dfsg-2","8064+dfsg-1ubuntu1","8681+dfsg-1"]}],"products":[{"vendor":"ggml-org","product":"llama.cpp"}],"references":[{"url":"https://vuldb.com/vuln/383354","tags":["vdb-entry","technical-description","report"]},{"url":"https://vuldb.com/vuln/383354/cti","tags":["signature","permissions-required","report"]},{"url":"https://vuldb.com/cve/CVE-2026-17501","tags":["third-party-advisory","report"]},{"url":"https://vuldb.com/submit/798504","tags":["third-party-advisory","report"]},{"url":"https://github.com/ggml-org/llama.cpp/issues/25283","tags":["issue-tracking","report"]},{"url":"https://github.com/ggml-org/llama.cpp/pull/25308","tags":["issue-tracking","patch","report"]},{"url":"https://github.com/ggml-org/llama.cpp/","tags":["product","report"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-17501"},{"url":"https://github.com/ggml-org/llama.cpp"},{"url":"https://github.com/advisories/GHSA-h334-888w-8prr"},{"url":"https://security-tracker.debian.org/tracker/CVE-2026-17501","tags":["advisory"]},{"url":"https://ubuntu.com/security/CVE-2026-17501","tags":["report"]},{"url":"https://www.cve.org/CVERecord?id=CVE-2026-17501","tags":["report"]}],"sources":{"cve":[{"id":"CVE-2026-17501","title":"ggml-org llama.cpp JSON-Schema-to-GBNF Conversion json-schema-to-grammar.cpp transform recursion","description":"A flaw has been found in ggml-org llama.cpp e15efe0. This vulnerability affects the function transform of the file common/json-schema-to-grammar.cpp of the component JSON-Schema-to-GBNF Conversion. This manipulation causes uncontrolled recursion. The attack may be initiated remotely. The pull request to fix this issue awaits acceptance.","status":"published","published":"2026-07-27T00:30:11.082Z","modified":"2026-07-29T04:43:05.523Z","cvss":[{"version":"4.0","score":6.9,"vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N/E:X","level":"medium","assessor":"cna"},{"version":"3.1","score":5.3,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L/E:X/RL:X/RC:R","level":"medium","assessor":"cna"},{"version":"3.0","score":5.3,"vector":"CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L/E:X/RL:X/RC:R","level":"medium","assessor":"cna"},{"version":"2.0","score":5,"vector":"AV:N/AC:L/Au:N/C:N/I:N/A:P/E:ND/RL:ND/RC:UR","assessor":"cna"}],"cwes":["CWE-674","CWE-404"],"updated_at":"2026-11-02T14:19:54.84674Z"}],"euvd":[{"id":"EUVD-2026-49061","description":"A flaw has been found in ggml-org llama.cpp e15efe0. This vulnerability affects the function transform of the file common/json-schema-to-grammar.cpp of the component JSON-Schema-to-GBNF Conversion. This manipulation causes uncontrolled recursion. The attack may be initiated remotely. The pull request to fix this issue awaits acceptance.","status":"published","published":"2026-07-27T00:30:11Z","modified":"2026-07-29T04:43:05Z","cvss":[{"version":"4.0","score":6.9,"vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N/E:X","level":"medium"}],"updated_at":"2026-11-02T18:02:30.59681Z"}],"ghsa":[{"id":"GHSA-h334-888w-8prr","title":"A flaw has been found in ggml-org llama.cpp e15efe0. This vulnerability affects the function...","description":"A flaw has been found in ggml-org llama.cpp e15efe0. This vulnerability affects the function transform of the file common/json-schema-to-grammar.cpp of the component JSON-Schema-to-GBNF Conversion. This manipulation causes allocation of resources. The attack may be initiated remotely. The pull request to fix this issue awaits acceptance.","status":"published","published":"2026-07-27T03:30:19Z","modified":"2026-07-29T06:32:04Z","cvss":[{"version":"4.0","score":6.9,"vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/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":"medium"},{"version":"3.1","score":5.3,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L","level":"medium"}],"cwes":["CWE-400","CWE-404"],"updated_at":"2026-11-02T15:09:53.70861Z"}],"nvd":[{"id":"CVE-2026-17501","description":"A flaw has been found in ggml-org llama.cpp e15efe0. This vulnerability affects the function transform of the file common/json-schema-to-grammar.cpp of the component JSON-Schema-to-GBNF Conversion. This manipulation causes uncontrolled recursion. The attack may be initiated remotely. The pull request to fix this issue awaits acceptance.","status":"published","published":"2026-07-27T01:16:26.57Z","modified":"2026-10-24T13:10:00.147Z","cvss":[{"version":"4.0","score":6.9,"vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/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":"medium","assessor":"secondary"},{"version":"3.1","score":5.3,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L","level":"medium","assessor":"secondary"},{"version":"2.0","score":5,"vector":"AV:N/AC:L/Au:N/C:N/I:N/A:P","level":"medium","assessor":"secondary"}],"cwes":["CWE-404","CWE-674"],"updated_at":"2026-11-02T14:12:32.830533Z"}],"osv":[{"id":"DEBIAN-CVE-2026-17501","description":"A flaw has been found in ggml-org llama.cpp e15efe0. This vulnerability affects the function transform of the file common/json-schema-to-grammar.cpp of the component JSON-Schema-to-GBNF Conversion. This manipulation causes uncontrolled recursion. The attack may be initiated remotely. The pull request to fix this issue awaits acceptance.","status":"published","published":"2026-07-27T01:16:26.57Z","modified":"2026-10-25T10:01:06.218144374Z","cvss":[{"version":"4.0","score":6.9,"vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/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":"medium"}],"updated_at":"2026-11-02T15:45:52.562592Z"},{"id":"UBUNTU-CVE-2026-17501","description":"A flaw has been found in ggml-org llama.cpp e15efe0. This vulnerability affects the function transform of the file common/json-schema-to-grammar.cpp of the component JSON-Schema-to-GBNF Conversion. This manipulation causes uncontrolled recursion. The attack may be initiated remotely. The pull request to fix this issue awaits acceptance.","status":"published","published":"2026-07-27T01:16:00Z","modified":"2026-10-17T12:58:06.66995814Z","cvss":[{"version":"3.1","score":5.3,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L","level":"medium"},{"version":"4.0","score":6.9,"vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N","level":"medium"}],"updated_at":"2026-11-02T16:56:01.334185Z"}]}}