{"id":"UBUNTU-CVE-2026-83530","details":"A user could provide an expression whose string length is longer than the ParserExpressionSizeLimit() configured on the CEL environment, and a memory allocation would occur proportional to the size of the input before the limit would be checked / enforced.","modified":"2026-09-16T11:43:09Z","published":"2026-09-09T15:17:00Z","upstream":["CVE-2026-83530"],"references":[{"type":"REPORT","url":"https://ubuntu.com/security/CVE-2026-83530"},{"type":"REPORT","url":"https://www.cve.org/CVERecord?id=CVE-2026-83530"},{"type":"REPORT","url":"https://github.com/cel-expr/cel-go/pull/1302"}],"affected":[{"package":{"name":"golang-github-google-cel-go","ecosystem":"Ubuntu:24.04:LTS","purl":"pkg:deb/ubuntu/golang-github-google-cel-go?arch=source&distro=noble"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["0.12.5+ds-1"],"ecosystem_specific":{"binaries":[{"binary_name":"golang-github-google-cel-go-dev","binary_version":"0.12.5+ds-1"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-83530.json"}},{"package":{"name":"golang-github-google-cel-go","ecosystem":"Ubuntu:26.04:LTS","purl":"pkg:deb/ubuntu/golang-github-google-cel-go?arch=source&distro=resolute"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["0.18.2+ds-5","0.18.2+ds-7","0.27.0+ds-1"],"ecosystem_specific":{"binaries":[{"binary_version":"0.27.0+ds-1","binary_name":"golang-github-google-cel-go-dev"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-83530.json"}}],"schema_version":"1.9.0","severity":[{"type":"CVSS_V4","score":"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"},{"type":"Ubuntu","score":"medium"}]}