Vulnerability DatabaseCVE-2026-83530
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CVE-2026-83530
Published:September 09, 2026
Updated:September 22, 2026
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.
Affected Packages
https://github.com/cel-expr/cel-go.git (GITHUB):
Affected version(s) >=v0.8.0 <v0.29.0
Fix Suggestion:
Update to version v0.29.0
github.com/google/cel-go (GO):
Affected version(s) >=v0.8.0 <v0.29.0
Fix Suggestion:
Update to version v0.29.0
Related Resources (1)
https://github.com/cel-expr/cel-go/pull/1302
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CVSS v4
Base Score:
6.9
Attack Vector
NETWORK
Attack Complexity
LOW
Attack Requirements
NONE
Privileges Required
NONE
User Interaction
NONE
Vulnerable System Confidentiality
NONE
Vulnerable System Integrity
NONE
Vulnerable System Availability
LOW
Subsequent System Confidentiality
NONE
Subsequent System Integrity
NONE
Subsequent System Availability
NONE
CVSS v3
Base Score:
5.3
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
NONE
Integrity
NONE
Availability
LOW
Weakness Type (CWE)
Memory Allocation with Excessive Size Value
CWE-789
EPSS
Base Score:
0.21