CVE-2026-82803armink struct2json JSON Deserialization s2jdef.h S2J_STRUCT_GET_string_ELEMENT null pointer dereference
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A vulnerability has been found in armink struct2json 1.0. This affects the function S2J_STRUCT_GET_string_ELEMENT in the library struct2json/inc/s2jdef.h of the component JSON Deserialization. The manipulation of the argument valuestring leads to null pointer dereference. The attack may be initiated remotely. The exploit has been disclosed to the public and may be used. The vendor was contacted early about this disclosure but did not respond in any way.
- CVSS
- 5.3 MEDIUM (v3.1, CNA)CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L/E:P/RL:X/RC:R
- Weakness (CWE)
- CWE-476, CWE-404
- Known exploited
- Not in CISA's KEV catalog
- EPSS (exploitation in the next 30 days)
- Not loaded for this CVE
- Assigned by
- VulDB
- NVD analysis
- Deferred
- Record last updated
- Sep 2, 2026
- First seen by InfoSec Signals
- Oct 9, 2026
Affected products
armink struct2json armink:struct2json | 1.0 | CNA record |
References
- https://vuldb.com/vuln/397224vdb-entry, technical-description
- https://vuldb.com/vuln/397224/ctisignature, permissions-required
- https://vuldb.com/cve/CVE-2026-82803third-party-advisory
- https://vuldb.com/submit/858192third-party-advisory
- https://github.com/fa1c4/security-advisories/tree/main/struct2jsonrelated
- https://github.com/fa1c4/security-advisories/tree/main/struct2json/PoCexploit
The CVE record on cve.org NVD's entry
The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.