# CWE-532: Insertion of Sensitive Information into Log File **Likelihood of exploit:** Medium > As of 2026-10-05, CWE-532 (Insertion of Sensitive Information into Log File) underlies 4 CVEs tracked by Threadlinqs, none of them in the CISA Known Exploited Vulnerabilities catalog, and is cited by 7 tracked threats. MITRE rates its likelihood of exploit as Medium. **Last updated:** 2026-10-05 ## What is CWE-532? The product writes sensitive information to a log file. CWE-532 is a base-level weakness in MITRE’s Common Weakness Enumeration, with a MITRE likelihood of exploit of Medium. Applicable platforms: Language: Not Language-Specific. _Source: [MITRE CWE](https://cwe.mitre.org/data/definitions/532.html) (CWE-532 definition, reproduced verbatim). Counts and linkage below are Threadlinqs data._ ## Consequences - **Confidentiality** — Read Application Data. Logging sensitive user data, full path names, or system information often provides attackers with an additional, less-protected path to acquiring the information. _Source: MITRE CWE, common consequences._ ## How CWE-532 is exploited in the wild Threadlinqs maps 4 CVEs to CWE-532, published between 2025-12-09 and 2026-08-27. None of them is in the CISA KEV catalog yet. By CVSS v3 severity the set splits into 1 high, 3 medium. The highest EPSS score in the set is 0.1% (CVE-2026-21808), the modelled probability of exploitation in the next 30 days. 7 tracked threats reference CWE-532 directly or through a CVE it covers; the most recent is “Multiple Vulnerabilities in Fortigate NGFW on RUGGEDCOM APE1808 Devices (SSA-864900) — Including Actively Exploited FortiCloud SSO Bypass (CVE-2025-59718/-59719) and FortiOS Heap Overflow (CVE-2025-25249)” (2026-09-13). Affected products concentrate in Docker (1), HCLSoftware (1), MongoDB (1), among 4 vendors in total. ## Vulnerabilities (CVEs) All 4 CVEs mapped to CWE-532, CISA KEV first, then by CVSS score. - [CVE-2025-13743](https://intel.threadlinqs.com/cve/CVE-2025-13743) — CVSS 7.5 high · EPSS 0.0% · published 2025-12-09 - [CVE-2026-81530](https://intel.threadlinqs.com/cve/CVE-2026-81530) — CVSS 5.6 medium · EPSS 0.0% · published 2026-08-27 - [CVE-2026-19363](https://intel.threadlinqs.com/cve/CVE-2026-19363) — CVSS 5.3 medium · published 2026-08-09 - [CVE-2026-21808](https://intel.threadlinqs.com/cve/CVE-2026-21808) — CVSS 4.1 medium · EPSS 0.1% · published 2026-08-26 ## Affected vendors - **Docker** — 1 CVE - **HCLSoftware** — 1 CVE - [MongoDB](https://intel.threadlinqs.com/vendors/mongodb) — 1 CVE - **lmammino** — 1 CVE ## Threat activity 7 tracked threats cite CWE-532: - [Multiple Vulnerabilities in Fortigate NGFW on RUGGEDCOM APE1808 Devices (SSA-864900) — Including Actively Exploited FortiCloud SSO Bypass (CVE-2025-59718/-59719) and FortiOS Heap Overflow (CVE-2025-25249)](https://intel.threadlinqs.com/threat/TL-2026-2486) — CRITICAL · 2026-09-13 - [Personal GitHub Repositories Are a Major Blind Spot for Corporate Secret Leaks (Wiz Research)](https://intel.threadlinqs.com/threat/TL-2026-2009) — MEDIUM · 2026-08-13 - [SplitVPN (formerly NotVPN) "No-Logs" VPN Breach Exposes 58 Million Connection Logs, 23.4M User Records](https://intel.threadlinqs.com/threat/TL-2026-1823) — HIGH · 2026-08-02 - [Node.js June 2026 Security Release — 12 Vulnerabilities Across 22.x/24.x/26.x Including Two High-Severity TLS Authentication Bypass and WebCrypto DoS Flaws (CVE-2026-48618, CVE-2026-48933)](https://intel.threadlinqs.com/threat/TL-2026-0866) — HIGH · 2026-06-19 - [Acer Wave 7 Mesh Routers — Max-Severity Unauthenticated Zero-Days CVE-2026-49200 (Cleartext Credential Disclosure) & CVE-2026-49201 (Hardcoded AES Key Backdoor)](https://intel.threadlinqs.com/threat/TL-2026-0674) — CRITICAL · 2026-06-03 - [Apple iOS/iPadOS Notification Services Data Retention Zero-Day (CVE-2026-28950) — Exploited In-The-Wild for Forensic Extraction of Signal Messages](https://intel.threadlinqs.com/threat/TL-2026-0413) — HIGH · 2026-04-23 - [APT28/UAC-0001 Sustained Cyber Espionage Against Ukraine & EU (2024-2026 New TTPs)](https://intel.threadlinqs.com/threat/TL-2026-0066) — HIGH · 2026-02-12 ## Mitigations - **Architecture and Design, Implementation**: Consider seriously the sensitivity of the information written into log files. Do not write secrets into the log files. - **Distribution**: Remove debug log files before deploying the application into production. - **Operation**: Protect log files against unauthorized read/write. - **Implementation**: Adjust configurations appropriately when software is transitioned from a debug state to production. _Source: MITRE CWE, potential mitigations._ ## Detection methods (MITRE CWE) - **Automated Static Analysis** (effectiveness: High): Automated static analysis, commonly referred to as Static Application Security Testing (SAST), can find some instances of this weakness by analyzing source code (or binary/compiled code) without having to execute it. Typically, this is done by building a model of data flow and control flow, then searching for potentially-vulnerable patterns that connect "sources" (origins of input) with "sinks" (destinations where the data interacts with external components, a lower layer such as the OS, etc.) _Source: MITRE CWE, detection methods. Threadlinqs detection rules for the threats above are Blue tier and higher._ ## Related weaknesses - CWE-538 Insertion of Sensitive Information into Externally-Accessible File or Directory - [CWE-200 Exposure of Sensitive Information to an Unauthorized Actor](https://intel.threadlinqs.com/cwe/CWE-200) Canonical: https://intel.threadlinqs.com/cwe/CWE-532 Source definition: https://cwe.mitre.org/data/definitions/532.html Detection rules and IOCs for threats exploiting CWE-532 via the Threadlinqs MCP server (Purple tier): https://intel.threadlinqs.com/mcp