CVE-2026-83530

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.

CVSS v3 4.3 MEDIUM

4.3^/10

CVSS v3 : MEDIUM

Vector :

Exploitability : 2.8 / Impact : 1.4

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required LOW

User Interaction NONE

Confidentiality Impact NONE

Integrity Impact LOW

Availability Impact NONE

Scope UNCHANGED

References

Link	Resource
https://github.com/cel-expr/cel-go/pull/1302	Patch Vendor Advisory

Configurations

Configuration 1 (hide)

cpe:2.3:a:google:common_expression_language:*:*:*:*:*:go:*:*

History

23 Sep 2026, 20:38

Type	Values Removed	Values Added
CPE		cpe:2.3:a:google:common_expression_language::::::go::*
References	~~() https://github.com/cel-expr/cel-go/pull/1302 -~~	() https://github.com/cel-expr/cel-go/pull/1302 - Patch, Vendor Advisory
First Time		Google common Expression Language Google
CVSS	v2 : ~~unknown~~ v3 : ~~unknown~~	v2 : unknown v3 : 4.3

Information

Published : 2026-09-09 15:17

Updated : 2026-09-23 20:38

NVD link : CVE-2026-83530

Mitre link : CVE-2026-83530

CVE.ORG link : CVE-2026-83530

JSON object : View

Products Affected

google

common_expression_language

CWE

CWE-789

Memory Allocation with Excessive Size Value

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