{"answers":{"affected":"","exploited":"It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-23749 exists.","fix":"No fix has been published for CVE-2026-23749 yet. Limit exposure of the affected software until one is available.","what":"CVE-2026-23749 is a low-severity memory corruption vulnerability in Golioth Firmware SDK, published on 26 Feb 2026. It can only be exploited from the same machine or local network, with no action from the victim."},"fix_prompt":"Check this codebase for CVE-2026-23749 and fix it if it is affected.\n\nWhat it is: CVE-2026-23749 is a low-severity memory corruption vulnerability in Golioth Firmware SDK, published on 26 Feb 2026. It can only be exploited from the same machine or local network, with no action from the victim.\nExploitation: It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-23749 exists.\n\nAffected product: Golioth Firmware SDK. No package-level version data is available, so check the vendor advisory linked from the reference page.\n\nTask:\n1. Search the dependency manifests and lockfiles (for example package.json, package-lock.json, requirements.txt, poetry.lock, uv.lock, pom.xml, build.gradle, go.mod, Cargo.lock, Gemfile.lock) and any Dockerfiles for the affected packages, including transitive dependencies.\n2. If an affected version is in use, upgrade it to the fixed version for its release line with the project's package manager, so the lockfile is regenerated. Prefer the smallest upgrade that fixes it.\n3. If there is no fix, or the upgrade would break the build, do not guess: explain the risk and the safest workaround instead.\n4. Run the tests and summarise what changed and why.\n5. If nothing in the project is affected, say so and change nothing.\n\nReference: https://insights.sbomify.com/CVE-2026-23749/ (Markdown: https://insights.sbomify.com/CVE-2026-23749/index.md)","id":"CVE-2026-23749","markdown":"https://insights.sbomify.com/CVE-2026-23749/index.md","name":"CVE-2026-23749","record":{"aliases":["GHSA-2qjx-h626-j6v4"],"analysis":{"component_type":"iot_embedded","fix_type":"patch","impacts":["denial_of_service"],"network_reachable":"adjacent_or_local","non_default_config":false,"product_category":"Golioth Firmware SDK","requires_auth":"none","summary":"An out-of-bounds read in the Golioth Firmware SDK can cause a crash when processing blockwise transfer paths, leading to denial of service.","user_interaction":"not_required","vuln_class":"memory_corruption"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"VulnCheck","cpe":[],"cvss":{"score":2.1,"severity":"low","source":"cna","vector":"CVSS:4.0/AV:L/AC:L/AT:P/PR:N/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N","version":"4.0"},"cwes":[{"id":"CWE-170","name":"Improper Null Termination"}],"description":"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-\u003epath 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).","ecosystems":[],"exploits":{"exploitdb":0,"first_seen":null,"github_poc":0,"max_poc_stars":null,"metasploit":0,"nuclei":0,"refs":[],"tier":"weaponised"},"has_fix":false,"headline":"Golioth Firmware SDK \u003c 0.22.0 Blockwise Transfer Path Out-of-Bounds Read","id":"CVE-2026-23749","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":null,"product":null,"products":[],"type":"memory_corruption","year":"2026"},"n_packages":0,"n_references":5,"next":{"headline":"Golioth Pouch (prior to commit 1b2219a1) BLE GATT Heap-based Buffer Overflow","id":"CVE-2026-23750"},"packages":[],"prev":{"headline":"Golioth Firmware SDK \u003c 0.22.0 LightDB State Out-of-Bounds Read","id":"CVE-2026-23748"},"products":["Firmware SDK"],"published":"2026-02-26","related":[],"sources":[{"class":"attribution","licence":"CVE Terms of Use (MITRE)","name":"CVE List","prefix":"CVE"},{"class":"attribution","licence":"CWE Terms of Use","name":"CWE (MITRE)"},{"class":"attribution","licence":"FIRST CVSS licence","name":"CVSS (FIRST)"}],"ssvc":{"automatable":"no","exploitation":"poc","technical_impact":"partial"},"state":"PUBLISHED","updated":"2026-07-14","vendors":["Golioth"]},"summary":"An out-of-bounds read in the Golioth Firmware SDK can cause a crash when processing blockwise transfer paths, leading to denial of service.","url":"https://insights.sbomify.com/CVE-2026-23749/"}