CVE-2026-45039
Published: 28 May 2026
Summary
CVE-2026-45039 is a critical-severity Use of Hard-coded Credentials (CWE-798) vulnerability. Its CVSS base score is 9.8 (Critical).
Operationally, it is not currently listed in the CISA KEV catalog.
Threat & Defense Details
Likely Mitigating ControlsAI
Per-CVE control mapping for this CVE has not run yet; the list below is derived from the weakness types (CWEs) cited in the NVD entry.
Policy and procedures prohibit hard-coded credentials in favor of managed authentication.
Changing default authenticators prior to first use and protecting content prevents use of hard-coded credentials.
Strategy enforces supplier requirements and code reviews that reduce hard-coded credentials introduced through acquired products.
Requiring security functional requirements and acceptance criteria allows contracts to prohibit hard-coded credentials in delivered systems or components.
Known vulnerabilities section of admin docs covers hard-coded credentials and how to replace them, limiting their use in deployments.
Enables users to notice when hard-coded credentials have been exploited for unauthorized access.
Security training explicitly warns against hard-coded credentials, lowering their use in systems.
Mandates replacement of default credentials during secure configuration and provisioning procedures.
NVD Description
RustFS is a distributed object storage system built in Rust. Prior to 1.0.0-beta.2, the internode RPC layer authenticates every request with an HMAC-SHA256 signature using a shared secret. The function that produces this secret, get_shared_secret() in crates/ecstore/src/rpc/http_auth.rs, falls back to…
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the public, source-tree-embedded DEFAULT_SECRET_KEY = "rustfsadmin" when neither the RUSTFS_RPC_SECRET environment variable nor the global S3 secret key has been configured. This vulnerability is fixed in 1.0.0-beta.2.
Deeper analysisAI
Automated synthesis unavailable for this CVE.
Details
- CWE(s)
- OWASP Top 10 Web 2025
EU & UK References
- 🇪🇺 ENISA EUVD: EUVD-2026-32998
Regulatory context (EU CRA / NIS2 / DORA / UK NIS Regulations)
EU Cyber Resilience Act — coordinated disclosure
Critical and high-severity vulnerabilities in products with digital elements may trigger coordinated-disclosure obligations under the EU Cyber Resilience Act (CRA, Regulation 2024/2847). Manufacturers placing products on the EU market must notify ENISA and the relevant CSIRTs without undue delay once active exploitation is known.