{"id":"UBUNTU-CVE-2026-82677","details":"A vulnerability was determined in valkey-io valkey 9.1.0. Impacted is the function moduleTimerHandler of the file src/module.c of the component Module Timer Subsystem. This manipulation causes double free. The attack can be initiated remotely. The exploit has been publicly disclosed and may be utilized. Patch name: b349fe2821e3998534b1454c1b64a478daf8c6b7. To fix this issue, it is recommended to deploy a patch.","modified":"2026-09-17T08:00:03.995256306Z","published":"2026-08-31T10:16:00Z","upstream":["CVE-2026-82677"],"references":[{"type":"REPORT","url":"https://ubuntu.com/security/CVE-2026-82677"},{"type":"REPORT","url":"https://www.cve.org/CVERecord?id=CVE-2026-82677"},{"type":"REPORT","url":"https://github.com/user-attachments/files/30118801/PoC.zip"},{"type":"REPORT","url":"https://github.com/valkey-io/valkey/"},{"type":"REPORT","url":"https://github.com/valkey-io/valkey/commit/b349fe2821e3998534b1454c1b64a478daf8c6b7"},{"type":"REPORT","url":"https://github.com/valkey-io/valkey/issues/4200"},{"type":"REPORT","url":"https://github.com/valkey-io/valkey/pull/4211"},{"type":"REPORT","url":"https://vuldb.com/cve/CVE-2026-82677"},{"type":"REPORT","url":"https://vuldb.com/submit/893959"},{"type":"REPORT","url":"https://vuldb.com/vuln/397172"},{"type":"REPORT","url":"https://vuldb.com/vuln/397172/cti"}],"affected":[{"package":{"name":"valkey","ecosystem":"Ubuntu:Pro:24.04:LTS","purl":"pkg:deb/ubuntu/valkey?arch=source&distro=esm-apps%2Fnoble"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["7.2.5+dfsg1-2ubuntu4~24.04.1","7.2.7+dfsg1-0ubuntu0.24.04.1","7.2.8+dfsg1-0ubuntu0.24.04.1","7.2.8+dfsg1-0ubuntu0.24.04.2","7.2.8+dfsg1-0ubuntu0.24.04.3","7.2.10+dfsg1-0ubuntu0.1","7.2.11+dfsg1-0ubuntu0.1","7.2.11+dfsg1-0ubuntu0.2","7.2.12+dfsg1-0ubuntu0.1","7.2.13+dfsg1-0ubuntu0.1","7.2.13+dfsg1-0ubuntu0.1+esm1"],"ecosystem_specific":{"binaries":[{"binary_name":"valkey-redis-compat","binary_version":"7.2.13+dfsg1-0ubuntu0.1+esm1"},{"binary_name":"valkey-sentinel","binary_version":"7.2.13+dfsg1-0ubuntu0.1+esm1"},{"binary_name":"valkey-server","binary_version":"7.2.13+dfsg1-0ubuntu0.1+esm1"},{"binary_name":"valkey-tools","binary_version":"7.2.13+dfsg1-0ubuntu0.1+esm1"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-82677.json"}},{"package":{"name":"valkey","ecosystem":"Ubuntu:26.04:LTS","purl":"pkg:deb/ubuntu/valkey?arch=source&distro=resolute"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["8.1.3+dfsg1-0ubuntu2","8.1.4+dfsg1-0ubuntu1","9.0.2-0ubuntu1","9.0.3-0ubuntu1","9.0.3-0ubuntu2","9.0.4-0ubuntu0.1","9.0.4-0ubuntu0.2"],"ecosystem_specific":{"binaries":[{"binary_version":"9.0.4-0ubuntu0.2","binary_name":"valkey-sentinel"},{"binary_name":"valkey-server","binary_version":"9.0.4-0ubuntu0.2"},{"binary_version":"9.0.4-0ubuntu0.2","binary_name":"valkey-tools"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-82677.json"}}],"schema_version":"1.9.0","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:U/C:N/I:N/A:L"},{"type":"CVSS_V4","score":"CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:P/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N/E:P"},{"type":"Ubuntu","score":"medium"}]}