CVE-2026-30873

Summary

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.

Affected Software

Weaknesses

• CWE-401: CWE-401: Missing Release of Memory after Effective Lifetime

ADP Enrichment

CISA ADP Vulnrichment

• SSVC:
• Exploitation: none
  • Automatable: no
  • Technical Impact: partial

References

• https://github.com/openwrt/openwrt/security/advisories/GHSA-rcc6-v4r6-gj4m
• https://github.com/openwrt/openwrt/releases/tag/v24.10.6
• https://github.com/openwrt/openwrt/releases/tag/v25.12.1

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