CVE Catalog

CVE-2026-83530

MediumCVSS 4.3
Published: Updated: Translated: NVD NIST

Exploitation Probability (EPSS)

Low risk
0.15%

3th percentile - higher than 3% of all known CVEs

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 checked or enforced.

Risk Assessment

Risk of excessive memory consumption, potentially leading to resource exhaustion and denial of service.

Recommendation

Apply vendor patches or restrict access to CEL expression processing to mitigate the vulnerability.

Related vulnerabilities

Original NVD description (English source)

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.

Vulnerability data from NVD (NIST) · CISA KEV · EPSS