{"id":"CVE-2026-90781","aliases":["AZL-104928","DEBIAN-CVE-2026-90781","EUVD-2026-77008","GHSA-f8w2-9vv9-pxwq","OESA-2026-4119","RHSA-2026:40573","RHSA-2026:67289","UBUNTU-CVE-2026-90781","openSUSE-SU-2026:11783-1"],"status":"published","title":"alsa-lib through 1.2.16.1 Off-by-One Stack Buffer Overflow in __snd_ctl_ascii_elem_id_parse()","description":"alsa-lib through 1.2.16.1 contains a stack buffer overflow in the __snd_ctl_ascii_elem_id_parse() function that writes one byte past a 64-byte buffer when parsing a name= field with 64 or more characters. Attackers can supply a long control-element identifier string through saved state files or command-line arguments to overwrite adjacent stack memory and crash the calling process.","severity":{"version":"4.0","score":4.8,"vector":"CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:L/VA:L/SC:N/SI:N/SA:N","level":"medium","assessor":"cna","from":"cve"},"epss":{"day":"2026-11-11","score":0.00179,"percentile":0.0757,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":true,"fix_available":true},"cwes":["CWE-193"],"published":"2026-08-19T10:18:29Z","modified":"2026-11-07T14:17:07Z","exploits":[{"source":"pocgithub","id":"HarshRajSinghania/CVE-2026-90781-alsa-lib-oob","title":"HarshRajSinghania/CVE-2026-90781-alsa-lib-oob","date":"2026-09-13","url":"https://github.com/HarshRajSinghania/CVE-2026-90781-alsa-lib-oob"}],"fixes":[{"ecosystem":"Azure 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project","product":"alsa-lib"}],"references":[{"url":"https://github.com/alsa-project/alsa-lib/commit/f84cd4ced7b36fddb8e4ee24404cf7c091d27020","tags":["patch","fix","article"]},{"url":"https://github.com/alsa-project/alsa-lib/blob/v1.2.16.1/src/control/ctlparse.c#L216-L241","tags":["technical-description","article"]},{"url":"https://lore.kernel.org/alsa-devel/CACBQ=P2FhO3M6dkv3cWuKb6Qhs92ouV+FJ3SJZ_PVBSSdJWRAQ@mail.gmail.com/","tags":["mailing-list","article","report"]},{"url":"https://github.com/alsa-project/alsa-lib","tags":["product","package","article"]},{"url":"https://www.vulncheck.com/advisories/alsa-lib-through-1.2.16.1-off-by-one-stack-buffer-overflow-in-snd-ctl-ascii-elem-id-parse","tags":["third-party-advisory","advisory","article"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-90781","tags":["web","advisory"]},{"url":"https://lore.kernel.org/alsa-devel/CACBQ=P2FhO3M6dkv3cWuKb6Qhs92ouV+FJ3SJZ_PVBSSdJWRAQ@mail.gmail.com"},{"url":"https://github.com/advisories/GHSA-f8w2-9vv9-pxwq"},{"url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/90xxx/CVE-2026-90781.json","tags":["advisory"]},{"url":"https://security-tracker.debian.org/tracker/CVE-2026-90781","tags":["advisory"]},{"url":"https://www.openeuler.org/zh/security/security-bulletins/detail/?id=openEuler-SA-2026-4119","tags":["advisory"]},{"url":"https://access.redhat.com/errata/RHSA-2026:40573","tags":["advisory"]},{"url":"https://images.redhat.com/","tags":["article"]},{"url":"https://access.redhat.com/security/cve/CVE-2026-56109","tags":["report"]},{"url":"https://access.redhat.com/security/updates/classification/","tags":["article"]},{"url":"https://access.redhat.com/security/cve/CVE-2026-90781","tags":["report"]},{"url":"https://security.access.redhat.com/data/csaf/v2/advisories/2026/rhsa-2026_40573.json","tags":["advisory"]},{"url":"https://bugzilla.redhat.com/show_bug.cgi?id=2491439","tags":["report"]},{"url":"https://www.cve.org/CVERecord?id=CVE-2026-56109","tags":["advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-56109","tags":["advisory"]},{"url":"https://github.com/alsa-project/alsa-lib/commit/536dd6f8affdf5197c12a63a71c92a70b2833cc0","tags":["article"]},{"url":"https://github.com/alsa-project/alsa-lib/releases/tag/v1.2.16.1","tags":["article"]},{"url":"https://lore.kernel.org/alsa-devel/CAGt8pqBU0p2voB+qHxWGcNJrKHAcBhAyHUUBPLBN-Yj_SiV6MQ@mail.gmail.com/","tags":["article"]},{"url":"https://www.vulncheck.com/advisories/alsa-library-double-free-via-parse-def-in-conf-c","tags":["article"]},{"url":"https://bugzilla.redhat.com/show_bug.cgi?id=2532707","tags":["report"]},{"url":"https://www.cve.org/CVERecord?id=CVE-2026-90781","tags":["advisory","report"]},{"url":"https://access.redhat.com/errata/RHSA-2026:67289","tags":["advisory"]},{"url":"https://security.access.redhat.com/data/csaf/v2/advisories/2026/rhsa-2026_67289.json","tags":["advisory"]},{"url":"https://ubuntu.com/security/CVE-2026-90781","tags":["report"]},{"url":"","tags":["advisory"]},{"url":"https://www.suse.com/security/cve/CVE-2026-90781","tags":["web"]}],"sources":{"cve":[{"id":"CVE-2026-90781","title":"alsa-lib through 1.2.16.1 Off-by-One Stack Buffer Overflow in __snd_ctl_ascii_elem_id_parse()","description":"alsa-lib through 1.2.16.1 contains a stack buffer overflow in the __snd_ctl_ascii_elem_id_parse() function that writes one byte past a 64-byte buffer when parsing a name= field with 64 or more characters. Attackers can supply a long control-element identifier string through saved state files or command-line arguments to overwrite adjacent stack memory and crash the calling process.","status":"published","published":"2026-09-13T12:22:01.184Z","modified":"2026-09-16T14:07:43.295Z","cvss":[{"version":"4.0","score":4.8,"vector":"CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:L/VA:L/SC:N/SI:N/SA:N","level":"medium","assessor":"cna"},{"version":"3.1","score":4.4,"vector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:L","level":"medium","assessor":"cna"}],"cwes":["CWE-193"],"updated_at":"2026-11-02T13:45:59.110885Z"}],"euvd":[{"id":"EUVD-2026-77008","description":"alsa-lib through 1.2.16.1 contains a stack buffer overflow in the __snd_ctl_ascii_elem_id_parse() function that writes one byte past a 64-byte buffer when parsing a name= field with 64 or more characters. Attackers can supply a long control-element identifier string through saved state files or command-line arguments to overwrite adjacent stack memory and crash the calling process.","status":"published","published":"2026-09-13T12:22:01Z","modified":"2026-09-16T14:07:43Z","cvss":[{"version":"4.0","score":4.8,"vector":"CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:L/VA:L/SC:N/SI:N/SA:N","level":"medium"}],"updated_at":"2026-11-02T17:28:16.201278Z"}],"ghsa":[{"id":"GHSA-f8w2-9vv9-pxwq","title":"alsa-lib through 1.2.16.1 contains a stack buffer overflow in the __snd_ctl_ascii_elem_id_parse()...","description":"alsa-lib through 1.2.16.1 contains a stack buffer overflow in the __snd_ctl_ascii_elem_id_parse() function that writes one byte past a 64-byte buffer when parsing a name= field with 64 or more characters. Attackers can supply a long control-element identifier string through saved state files or command-line arguments to overwrite adjacent stack memory and crash the calling process.","status":"published","published":"2026-09-13T15:30:21Z","modified":"2026-09-13T15:30:22Z","cvss":[{"version":"4.0","score":4.8,"vector":"CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:L/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":4.4,"vector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:L","level":"medium"}],"cwes":["CWE-193"],"updated_at":"2026-11-02T15:11:47.193563Z"}],"nvd":[{"id":"CVE-2026-90781","description":"alsa-lib through 1.2.16.1 contains a stack buffer overflow in the __snd_ctl_ascii_elem_id_parse() function that writes one byte past a 64-byte buffer when parsing a name= field with 64 or more characters. Attackers can supply a long control-element identifier string through saved state files or command-line arguments to overwrite adjacent stack memory and crash the calling process.","status":"published","published":"2026-09-13T13:16:29.263Z","modified":"2026-09-24T20:47:31.797Z","cvss":[{"version":"4.0","score":4.8,"vector":"CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:L/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":4.4,"vector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:L","level":"medium","assessor":"secondary"}],"cwes":["CWE-193"],"updated_at":"2026-11-02T14:12:46.980627Z"}],"osv":[{"id":"CVE-2026-90781","title":"alsa-lib through 1.2.16.1 Off-by-One Stack Buffer Overflow in __snd_ctl_ascii_elem_id_parse()","description":"alsa-lib through 1.2.16.1 contains a stack buffer overflow in the __snd_ctl_ascii_elem_id_parse() function that writes one byte past a 64-byte buffer when parsing a name= field with 64 or more characters. Attackers can supply a long control-element identifier string through saved state files or command-line arguments to overwrite adjacent stack memory and crash the calling process.","status":"published","published":"2026-09-13T12:22:01.184Z","modified":"2026-10-28T11:19:39.860447816Z","cvss":[{"version":"4.0","score":4.8,"vector":"CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:L/VA:L/SC:N/SI:N/SA:N","level":"medium"}],"cwes":["CWE-193"],"updated_at":"2026-11-02T15:45:20.269367Z"},{"id":"DEBIAN-CVE-2026-90781","description":"alsa-lib through 1.2.16.1 contains a stack buffer overflow in the __snd_ctl_ascii_elem_id_parse() function that writes one byte past a 64-byte buffer when parsing a name= field with 64 or more characters. Attackers can supply a long control-element identifier string through saved state files or command-line arguments to overwrite adjacent stack memory and crash the calling process.","status":"published","published":"2026-09-13T13:16:29.263Z","modified":"2026-10-06T10:00:30.262409495Z","cvss":[{"version":"4.0","score":4.8,"vector":"CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:L/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":"2026-11-02T15:46:06.410207Z"},{"id":"OESA-2026-4119","title":"alsa-lib security update","description":"The alsa-lib is a library to interface with ALSA in the Linux kernel and virtual devices using a plugin system. More detail: https://alsa.opensrc.org/Alsa-lib\r\n\r\nSecurity Fix(es):\n\nalsa-lib through 1.2.16.1 contains a stack buffer overflow in the __snd_ctl_ascii_elem_id_parse() function that writes one byte past a 64-byte buffer when parsing a name= field with 64 or more characters. Attackers can supply a long control-element identifier string through saved state files or command-line arguments to overwrite adjacent stack memory and crash the calling process.(CVE-2026-90781)","status":"published","published":"2026-09-25T01:28:41Z","modified":"2026-09-25T01:45:09.208325131Z","cvss":[{"version":"4.0","score":4.8,"vector":"CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:L/VA:L/SC:N/SI:N/SA:N","level":"medium"}],"updated_at":"2026-11-02T15:52:47.643553Z"},{"id":"RHSA-2026:40573","title":"Red Hat Security Advisory: Red Hat Hardened Images RPMs bug fix and enhancement update","status":"published","published":"2026-08-19T10:18:29Z","modified":"2026-09-22T10:42:45.21090767Z","cvss":[{"version":"3.1","score":6.8,"vector":"CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:H","level":"medium"}],"updated_at":"2026-11-02T15:53:20.491441Z"},{"id":"RHSA-2026:67289","title":"Red Hat Security Advisory: Red Hat Hardened Images RPMs Security Update","status":"published","published":"2026-09-22T10:18:32Z","modified":"2026-09-22T10:32:19.493102691Z","cvss":[{"version":"3.1","score":6.1,"vector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:H","level":"medium"}],"updated_at":"2026-11-02T15:53:22.406388Z"},{"id":"UBUNTU-CVE-2026-90781","description":"alsa-lib through 1.2.16.1 contains a stack buffer overflow in the __snd_ctl_ascii_elem_id_parse() function that writes one byte past a 64-byte buffer when parsing a name= field with 64 or more characters. Attackers can supply a long control-element identifier string through saved state files or command-line arguments to overwrite adjacent stack memory and crash the calling process.","status":"published","published":"2026-09-13T13:16:00Z","modified":"2026-10-17T13:01:16.783265951Z","cvss":[{"version":"3.1","score":4.4,"vector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:L","level":"medium"},{"version":"4.0","score":4.8,"vector":"CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:L/VA:L/SC:N/SI:N/SA:N","level":"medium"}],"updated_at":"2026-11-02T16:57:40.980117Z"},{"id":"AZL-104928","title":"CVE-2026-90781 affecting package alsa-lib for versions less than 1.2.16.1-3","description":"alsa-lib through 1.2.16.1 contains a stack buffer overflow in the __snd_ctl_ascii_elem_id_parse() function that writes one byte past a 64-byte buffer when parsing a name= field with 64 or more characters. Attackers can supply a long control-element identifier string through saved state files or command-line arguments to overwrite adjacent stack memory and crash the calling process.","status":"published","published":"2026-09-13T13:16:29Z","modified":"2026-11-07T14:17:07.212025216Z","updated_at":"2026-11-07T14:48:11.583685Z"},{"id":"openSUSE-SU-2026:11783-1","title":"alsa-1.2.16.1-2.1 on GA media","description":"These are all security issues fixed in the alsa-1.2.16.1-2.1 package on the GA media of openSUSE Tumbleweed.","status":"published","published":"2026-09-15T00:00:00Z","modified":"2026-09-16T18:23:08.412434776Z","updated_at":"2026-11-02T16:58:39.516824Z"}]}}