CVE-2026-30873

OpenWrt Project is a Linux operating system targeting embedded devices. In versions prior to both 24.10.6 and 25.12.1, the jp_get_token function, which performs lexical analysis by breaking input expressions into tokens, contains a memory leak vulnerability when extracting string literals, field labels, and regular expressions using dynamic memory allocation. These extracted results are stored in a jp_opcode struct, which is later copied to a newly allocated jp_opcode object via jp_alloc_op. During this transfer, if a string was previously extracted and stored in the initial jp_opcode, it is copied to the new allocation but the original memory is never freed, resulting in a memory leak. This issue has been fixed in versions 24.10.6 and 25.12.1.

CVSS v3 4.9 MEDIUM

4.9^/10

CVSS v3 : MEDIUM

Vector :

Exploitability : 1.2 / Impact : 3.6

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required HIGH

User Interaction NONE

Confidentiality Impact NONE

Integrity Impact NONE

Availability Impact HIGH

Scope UNCHANGED

References

Link	Resource
https://github.com/openwrt/openwrt/releases/tag/v24.10.6	Release Notes
https://github.com/openwrt/openwrt/releases/tag/v25.12.1	Release Notes
https://github.com/openwrt/openwrt/security/advisories/GHSA-rcc6-v4r6-gj4m	Vendor Advisory

Configurations

Configuration 1 (hide)

OR	cpe:2.3:o:openwrt:openwrt::::::::
	cpe:2.3:o:openwrt:openwrt::::::::

History

No history.

Information

Published : 2026-03-19 22:16

Updated : 2026-03-24 14:11

NVD link : CVE-2026-30873

Mitre link : CVE-2026-30873

CVE.ORG link : CVE-2026-30873

JSON object : View

Products Affected

openwrt

openwrt

CWE

CWE-401

Missing Release of Memory after Effective Lifetime

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