{"id":"CVE-2026-30873","summary":"OpenWrt Project jsonpath: Memory leak when processing strings, labels, and regexp tokens","details":"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.","aliases":["GHSA-rcc6-v4r6-gj4m"],"modified":"2026-04-10T05:41:56.025392Z","published":"2026-03-19T22:01:03.867Z","database_specific":{"cna_assigner":"GitHub_M","cwe_ids":["CWE-401"],"osv_generated_from":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/30xxx/CVE-2026-30873.json"},"references":[{"type":"WEB","url":"https://github.com/openwrt/openwrt/releases/tag/v24.10.6"},{"type":"WEB","url":"https://github.com/openwrt/openwrt/releases/tag/v25.12.1"},{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/30xxx/CVE-2026-30873.json"},{"type":"ADVISORY","url":"https://github.com/openwrt/openwrt/security/advisories/GHSA-rcc6-v4r6-gj4m"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-30873"}],"affected":[{"ranges":[{"type":"GIT","repo":"https://github.com/openwrt/openwrt","events":[{"introduced":"b1a74b1cde0dd9b4c07bb5ba7020f94967912f2d"},{"fixed":"d6115e42127481645ae7210c9d8ca1bd14313473"}],"database_specific":{"versions":[{"introduced":"25.12.0-rc1"},{"fixed":"25.12.1"}]}},{"type":"GIT","repo":"https://github.com/openwrt/openwrt","events":[{"introduced":"0"},{"fixed":"ec8eeaa8fbd3122b9b9e68b7db02707884a19c9c"}],"database_specific":{"versions":[{"introduced":"0"},{"fixed":"24.10.6"}]}}],"versions":["reboot","v24.10.0","v24.10.0-rc1","v24.10.0-rc2","v24.10.0-rc3","v24.10.0-rc4","v24.10.0-rc5","v24.10.0-rc6","v24.10.0-rc7","v24.10.1","v24.10.2","v24.10.3","v24.10.4","v24.10.5","v25.12.0","v25.12.0-rc1","v25.12.0-rc2","v25.12.0-rc3","v25.12.0-rc4","v25.12.0-rc5"],"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-30873.json"}}],"schema_version":"1.7.5","severity":[{"type":"CVSS_V4","score":"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"}]}