Vulnerability 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.
CVSS Score
MEDIUM
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Openwrt | Openwrt | < 24.10.6 |
Related Weaknesses (CWE)
References
- https://github.com/openwrt/openwrt/releases/tag/v24.10.6Release Notes
- https://github.com/openwrt/openwrt/releases/tag/v25.12.1Release Notes
- https://github.com/openwrt/openwrt/security/advisories/GHSA-rcc6-v4r6-gj4mVendor Advisory
FAQ
What is CVE-2026-30873?
CVE-2026-30873 is a vulnerability with a CVSS score of 4.9 (MEDIUM). 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 expr...
How severe is CVE-2026-30873?
CVE-2026-30873 has been rated MEDIUM with a CVSS base score of 4.9/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2026-30873?
Check the references section above for vendor advisories and patch information. Affected products include: Openwrt Openwrt.