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.
History

Fri, 20 Mar 2026 00:15:00 +0000

Type Values Removed Values Added
Weaknesses CWE-772
References
Metrics threat_severity

None

cvssV3_1

{'score': 4.5, 'vector': 'CVSS:3.1/AV:A/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:H'}

threat_severity

Moderate


Thu, 19 Mar 2026 22:15:00 +0000

Type Values Removed Values Added
Description 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.
Title OpenWrt Project jsonpath: Memory leak when processing strings, labels, and regexp tokens
Weaknesses CWE-401
References
Metrics cvssV4_0

{'score': 2.4, 'vector': 'CVSS:4.0/AV:A/AC:L/AT:N/PR:H/UI:A/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N'}


cve-icon MITRE

Status: PUBLISHED

Assigner: GitHub_M

Published:

Updated: 2026-03-19T22:01:03.867Z

Reserved: 2026-03-06T00:04:56.698Z

Link: CVE-2026-30873

cve-icon Vulnrichment

No data.

cve-icon NVD

Status : Received

Published: 2026-03-19T22:16:31.950

Modified: 2026-03-19T22:16:31.950

Link: CVE-2026-30873

cve-icon Redhat

Severity : Moderate

Publid Date: 2026-03-19T22:01:03Z

Links: CVE-2026-30873 - Bugzilla

cve-icon OpenCVE Enrichment

No data.