{"id":"CVE-2026-5315","aliases":["DEBIAN-CVE-2026-5315","EUVD-2026-18109","GHSA-gcmq-v5j6-6rjx","UBUNTU-CVE-2026-5315"],"status":"published","title":"Nothings stb TTF File stb_truetype.h stbtt__buf_get8 out-of-bounds","description":"A vulnerability was determined in Nothings stb up to 1.26. The affected element is the function stbtt__buf_get8 in the library stb_truetype.h of the component TTF File Handler. Executing a manipulation can lead to out-of-bounds read. The attack can be executed remotely. The exploit has been publicly disclosed and may be utilized. The vendor was contacted early about this disclosure but did not respond in any way.","severity":{"version":"4.0","score":5.3,"vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N/E:P","level":"medium","assessor":"cna","from":"cve"},"epss":{"day":"2026-11-11","score":0.00515,"percentile":0.44303,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-119","CWE-125"],"published":"2026-04-01T23:15:12Z","modified":"2026-10-27T09:47:40Z","affected":[{"source":"osv","ecosystem":"Debian:12","package":"libstb","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["0.0~git20220908.8b5f1f3+ds-1","0.0~git20230129.5736b15+ds-1","0.0~git20230129.5736b15+ds-1.1","0.0~git20230129.5736b15+ds-1.1~exp1","0.0~git20230129.5736b15+ds-1.2","0.0~git20240715.f7f20f39fe4f+ds-1","0.0~git20241109.5c20573+ds-1","0.0~git20250907.fede005+ds-1"]},{"source":"osv","ecosystem":"Debian:13","package":"libstb","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["0.0~git20241109.5c20573+ds-1","0.0~git20250907.fede005+ds-1"]},{"source":"osv","ecosystem":"Debian:14","package":"libstb","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["0.0~git20241109.5c20573+ds-1","0.0~git20250907.fede005+ds-1"]},{"source":"osv","ecosystem":"Ubuntu:20.04:LTS","package":"libstb","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["0.0~git20190817.1.052dce1-1"]},{"source":"osv","ecosystem":"Ubuntu:22.04:LTS","package":"libstb","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["0.0~git20200713.b42009b+ds-1","0.0~git20210910.af1a5bc+ds-1"]},{"source":"osv","ecosystem":"Ubuntu:24.04:LTS","package":"libstb","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["0.0~git20230129.5736b15+ds-1","0.0~git20230129.5736b15+ds-1.1","0.0~git20230129.5736b15+ds-1.2"]},{"source":"osv","ecosystem":"Ubuntu:25.10","package":"libstb","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["0.0~git20240715.f7f20f39fe4f+ds-1","0.0~git20241109.5c20573+ds-1"]},{"source":"osv","ecosystem":"Ubuntu:26.10","package":"libstb","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["0.0~git20250907.fede005+ds-1"]},{"source":"osv","ecosystem":"Ubuntu:26.04:LTS","package":"libstb","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["0.0~git20241109.5c20573+ds-1","0.0~git20250907.fede005+ds-1"]}],"products":[{"vendor":"nothings","product":"stb"},{"vendor":"nothings","product":"stb_truetype.h"}],"references":[{"url":"https://vuldb.com/vuln/354647","tags":["vdb-entry","technical-description","Third Party Advisory","VDB Entry","report"]},{"url":"https://vuldb.com/vuln/354647/cti","tags":["signature","permissions-required","Permissions Required","VDB Entry","report"]},{"url":"https://vuldb.com/submit/780559","tags":["third-party-advisory","Third Party Advisory","VDB Entry","report"]},{"url":"https://gist.github.com/d0razi/c11dd07c75f3b795e4f8bbfd6e2f0d29","tags":["exploit","Exploit","Third Party Advisory","report"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-5315"},{"url":"https://github.com/advisories/GHSA-gcmq-v5j6-6rjx"},{"url":"https://security-tracker.debian.org/tracker/CVE-2026-5315","tags":["advisory"]},{"url":"https://ubuntu.com/security/CVE-2026-5315","tags":["report"]},{"url":"https://www.cve.org/CVERecord?id=CVE-2026-5315","tags":["report"]}],"sources":{"cve":[{"id":"CVE-2026-5315","title":"Nothings stb TTF File stb_truetype.h stbtt__buf_get8 out-of-bounds","description":"A vulnerability was determined in Nothings stb up to 1.26. The affected element is the function stbtt__buf_get8 in the library stb_truetype.h of the component TTF File Handler. Executing a manipulation can lead to out-of-bounds read. The attack can be executed remotely. The exploit has been publicly disclosed and may be utilized. The vendor was contacted early about this disclosure but did not respond in any way.","status":"published","published":"2026-04-01T23:15:12.505Z","modified":"2026-04-02T13:32:19.636Z","cvss":[{"version":"4.0","score":5.3,"vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N/E:P","level":"medium","assessor":"cna"},{"version":"3.1","score":4.3,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:L/E:P/RL:X/RC:R","level":"medium","assessor":"cna"},{"version":"3.0","score":4.3,"vector":"CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:L/E:P/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:POC/RL:ND/RC:UR","assessor":"cna"}],"cwes":["CWE-125","CWE-119"],"updated_at":"2026-11-02T13:39:27.849196Z"}],"euvd":[{"id":"EUVD-2026-18109","description":"A vulnerability was determined in Nothings stb up to 1.26. The affected element is the function stbtt__buf_get8 in the library stb_truetype.h of the component TTF File Handler. Executing a manipulation can lead to out-of-bounds read. The attack can be executed remotely. The exploit has been publicly disclosed and may be utilized. The vendor was contacted early about this disclosure but did not respond in any way.","status":"published","published":"2026-04-01T23:15:12Z","modified":"2026-04-02T13:32:19Z","cvss":[{"version":"4.0","score":5.3,"vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N/E:P","level":"medium"}],"updated_at":"2026-11-02T19:25:23.121433Z"}],"ghsa":[{"id":"GHSA-gcmq-v5j6-6rjx","title":"A vulnerability was determined in Nothings stb up to 1.26. The affected element is the function...","description":"A vulnerability was determined in Nothings stb up to 1.26. The affected element is the function stbtt__buf_get8 in the library stb_truetype.h of the component TTF File Handler. Executing a manipulation can lead to out-of-bounds read. The attack can be executed remotely. The exploit has been publicly disclosed and may be utilized. The vendor was contacted early about this disclosure but did not respond in any way.","status":"published","published":"2026-04-02T00:31:04Z","modified":"2026-04-02T00:31:12Z","cvss":[{"version":"4.0","score":2.1,"vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N/E:P/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":"low"},{"version":"3.1","score":4.3,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:L","level":"medium"}],"cwes":["CWE-119"],"updated_at":"2026-11-02T15:07:04.885246Z"}],"nvd":[{"id":"CVE-2026-5315","description":"A vulnerability was determined in Nothings stb up to 1.26. The affected element is the function stbtt__buf_get8 in the library stb_truetype.h of the component TTF File Handler. Executing a manipulation can lead to out-of-bounds read. The attack can be executed remotely. The exploit has been publicly disclosed and may be utilized. The vendor was contacted early about this disclosure but did not respond in any way.","status":"published","published":"2026-04-02T00:16:25.153Z","modified":"2026-10-26T21:10:00.17Z","cvss":[{"version":"4.0","score":2.1,"vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N/E:P/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":"low","assessor":"secondary"},{"version":"3.1","score":4.3,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:L","level":"medium","assessor":"secondary"},{"version":"3.1","score":8.8,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H","level":"high","assessor":"primary"},{"version":"2.0","score":5,"vector":"AV:N/AC:L/Au:N/C:N/I:N/A:P","level":"medium","assessor":"secondary"}],"cwes":["CWE-119","CWE-125"],"updated_at":"2026-11-02T14:12:12.73929Z"}],"osv":[{"id":"DEBIAN-CVE-2026-5315","description":"A vulnerability was determined in Nothings stb up to 1.26. The affected element is the function stbtt__buf_get8 in the library stb_truetype.h of the component TTF File Handler. Executing a manipulation can lead to out-of-bounds read. The attack can be executed remotely. The exploit has been publicly disclosed and may be utilized. The vendor was contacted early about this disclosure but did not respond in any way.","status":"published","published":"2026-04-02T00:16:25.153Z","modified":"2026-10-27T09:47:40.89286459Z","cvss":[{"version":"3.1","score":8.8,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H","level":"high"}],"updated_at":"2026-11-02T15:45:56.877408Z"},{"id":"UBUNTU-CVE-2026-5315","description":"A vulnerability was determined in Nothings stb up to 1.26. The affected element is the function stbtt__buf_get8 in the library stb_truetype.h of the component TTF File Handler. Executing a manipulation can lead to out-of-bounds read. The attack can be executed remotely. The exploit has been publicly disclosed and may be utilized. The vendor was contacted early about this disclosure but did not respond in any way.","status":"published","published":"2026-04-02T00:16:00Z","modified":"2026-10-17T13:00:24.659553095Z","cvss":[{"version":"3.1","score":4.3,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:L","level":"medium"},{"version":"3.1","score":8.8,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H","level":"high"},{"version":"4.0","score":2.1,"vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N/E:P","level":"low"}],"updated_at":"2026-11-02T16:56:36.484972Z"}]}}