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TI-2026-19122 Aliases CVE-2026-23749GHSA-2qjx-h626-j6v4

Golioth Firmware SDK < 0.22.0 Blockwise Transfer Path Out-of-Bounds Read

Priority MEDIUM 44CWE-170Published · Updated

Key facts

Attack vector
Local
Privileges required
None
User interaction
None
Attack complexity
Low
Attack requirements
Present
Impact type
—
Confidentiality · integrity · availability
None · None · Low
Fix status
Fixed

Attack profile from CVSS 4.0 · CNA. Fix status from CNA.

Summary

Golioth Firmware SDK version 0.19.1 prior to 0.22.0, fixed in commit 0e788217, contain an out-of-bounds read due to improper null termination of a blockwise transfer path. blockwise_transfer_init() accepts a path whose length equals CONFIG_GOLIOTH_COAP_MAX_PATH_LEN and copies it using strncpy() without guaranteeing a trailing NUL byte, leaving ctx->path unterminated. A later strlen() on this buffer (in golioth_coap_client_get_internal()) can read past the end of the allocation, resulting in a crash/denial of service. The input is application-controlled (not network by default).

Why it matters now

Exploitation Proof of concept CISA SSVC · not in CISA KEV
EPSS 0.00184 8th percentileScored 2026-11-07
Public exploit Yes 1 exploit referenceTagged by the CNA
Fix Fixed Firmware SDK (Golioth): 0.22.0

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation
Poc
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
GoliothFirmware SDK0.19.1 to before 0.22.00.22.0Patch availableCNA
  • Firmware SDK VendorGolioth Affected 0.19.1 to before 0.22.0 Fixed in 0.22.0 Patch available CNA

Remediation

  • Fix · CNA Firmware SDK (Golioth) Fixed in 0.22.0

Fixed in the same release

Records fixed by the same vendor advisory or release, as the CNA lists them.

  • Release ·

    Golioth Firmware SDK 0.22.0

    3 records Highest priority Priority MEDIUM 3 MEDIUM

    Other records, highest priority first

    • TI-2026-19121 Golioth Firmware SDK < 0.22.0 LightDB State Out-of-Bounds ReadPriority MEDIUM 61
    • TI-2026-19120 Golioth Firmware SDK < 0.22.0 Payload Utils Stack-based Buffer OverflowPriority MEDIUM 61
    Show all 3 records →

Timeline

  1. 2026-10-02 Threatist record created from CVE-2026-23749
  2. 2026-10-03 Alias added: GHSA-2qjx-h626-j6v4

References

Exploit 1

Patch 1

Other 2

  • TI-2026-19123 Golioth Pouch (prior to commit 1b2219a1) BLE GATT Heap-based Buffer Overflow CVSS 4.0HIGH 7.2
  • TI-2026-19121 Golioth Firmware SDK < 0.22.0 LightDB State Out-of-Bounds Read CVSS 4.0MEDIUM 6.3
  • TI-2026-19120 Golioth Firmware SDK < 0.22.0 Payload Utils Stack-based Buffer Overflow CVSS 4.0MEDIUM 6.3

Sources

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