PT-2026-22168 · Unknown · Golioth Firmware Sdk

Secmate · Published 2026-02-26 · Updated 2026-02-26 · CVE-2026-23749

Positive Technologies (AI Summary)

CVSS v3.1

2.9

Low

Base vector

AV:L/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:L

Name of the Vulnerable Software and Affected Versions Golioth Firmware SDK versions prior to 0.22.0

Description The software contains an out-of-bounds read issue stemming from improper null termination during a blockwise transfer. The blockwise transfer init() function accepts a path with a length equal to CONFIG GOLIOTH COAP MAX PATH LEN and copies it using strncpy() without ensuring a trailing NUL byte. This can leave the ctx->path buffer unterminated. Subsequently, a strlen() operation on this buffer within the golioth coap client get internal() function may read beyond the allocated memory, potentially leading to a crash or denial of service. The input path is application-controlled.

Recommendations Update to Golioth Firmware SDK version 0.22.0 or later.

Exploit

Fix

Weakness Enumeration

CWE-170

Related Identifiers

CVE-2026-23749

Affected Products

Golioth Firmware Sdk

References · 8

• 🔥 https://blog.secmate.dev/posts/golioth-vulnerabilities-disclosure · Exploit
• https://github.com/golioth/golioth-firmware-sdk/commit/0e788217ab4b61a7c1d9fadd1b4a40f5f538a26d · Patch
• https://nvd.nist.gov/vuln/detail/CVE-2026-23749 · Security Note
• https://osv.dev/vulnerability/CVE-2026-23749 · Vendor Advisory
• https://github.com/golioth/golioth-firmware-sdk/releases/tag/v0.22.0 · Note
• https://secmate.dev/disclosures/SECMATE-2025-0017 · Note
• https://vulncheck.com/advisories/golioth-firmware-sdk-blockwise-transfer-path-out-of-bounds-read · Note
• https://twitter.com/CVEnew/status/2027099243404775814 · Twitter Post