{"id":"CVE-2026-83530","title":"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 …","summary":"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 …","severity":"medium","cvss":6.9,"cvssVector":"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","cwe":["CWE-789"],"vendor":"Google","product":"cel-go","affected":["cel-go < 0.29.0"],"published":"2026-09-09","updated":"2026-09-09","sourceUpdated":"2026-09-09T16:17:11.983","source":"NVD","sourceUrl":"https://nvd.nist.gov/vuln/detail/CVE-2026-83530","references":[{"url":"https://github.com/cel-expr/cel-go/pull/1302","label":"cve-coordination@google.com"}],"tags":["nvd","cve.org"],"ssvc":{"exploitation":"none","automatable":"yes","technicalImpact":"partial","timestamp":"2026-09-09T15:15:05.009764Z"},"cvssSource":"cna","ingestedAt":"2026-09-14T00:02:15.467Z","epss":0.00208,"epssPercentile":0.11286,"slug":"CVE-2026-83530","body":"## Overview\n\nA 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.\n\n## Remediation\n\nRefer to the linked advisories for vendor-supplied fixes and affected version ranges.","depth":"sunlit","depthScore":38,"depthScoreParts":{"impact":38,"likelihood":0,"exploitation":0,"ransomware":0},"changes":[]}