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TI-2026-23702 Aliases CVE-2026-30873

OpenWrt Project jsonpath: Memory leak when processing strings, labels, and regexp tokens

Priority LOW 13CWE-401Published · Updated

Key facts

Attack vector
Adjacent network
Privileges required
High
User interaction
Active
Attack complexity
Low
Attack requirements
None
Impact type
Denial of service
Confidentiality · integrity · availability
None · None · Low
Fix status
Fixed

Attack profile from CVSS 4.0 · CNA. Fix status from CNA. Impact type from CWE-401.

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.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.00512 43rd percentileScored 2026-11-07
Fix Fixed openwrt (openwrt): 25.12.1, 24.10.6

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation
None
Automatable
No
Technical impact
Partial

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

VendorProductAffected versionsFixed inStatusSource
openwrtopenwrt25.12.0-rc1 to before 25.12.1; before 24.10.625.12.1, 24.10.6Patch availableCNA
  • openwrt Vendoropenwrt Affected 25.12.0-rc1 to before 25.12.1; before 24.10.6 Fixed in 25.12.1, 24.10.6 Patch available CNA

CPE configurations NVD · 1

CPEVersionsRoleVendor
cpe:2.3:o:openwrt:openwrt:*:*:*:*:*:*:*:*before 24.10.6; 25.12.0 to before 25.12.1Vulnerableopenwrt
  • cpe:2.3:o:openwrt:openwrt:*:*:*:*:*:*:*:* Versions before 24.10.6; 25.12.0 to before 25.12.1 Vulnerable ·openwrt

Remediation

  • Fix · CNA openwrt (openwrt) Fixed in 25.12.1, 24.10.6

Timeline

  1. 2026-10-02 Threatist record created from CVE-2026-30873
  2. 2026-10-13 EPSS moved to the 50th–90th percentile
  3. 2026-10-25 EPSS moved to the below the 50th percentile

References

Advisory 1

Other 2

  • TI-2024-13053 Improper input validation in MediaTek MT6890, MT7915, MT7916, MT7981, MT7986 CVSS 3.1CRITICAL 9.8
  • TI-2026-44983 Cross-site scripting in openwrt CVSS 3.1CRITICAL 9.6
  • TI-2026-40045 OpenWrt: EAD Integer Underflow → Pre-Auth Denial of Service CVSS 3.1MEDIUM 6.5
  • TI-2023-09914 LuCI openwrt-22.03 branch git-22.361.69894-438c598 was discovered to contain a stored… CVSS 3.1MEDIUM 5.4
  • TI-2026-44982 OpenWrt: ACL bypass and arbitrary root file read via cgi-io cgi-download CVSS 3.1MEDIUM 4.9
  • TI-2026-23701 OpenWrt Project has a Stack-based Buffer Overflow vulnerability via IPv6 reverse DNS lookup CVSS 4.0CRITICAL 9.5
See all 136 →

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences