CWE-328: Use of Weak Hash
low-riskThe product uses an algorithm that produces a digest (output value) that does not meet security expectations for a hash function that allows an adversary to reasonably determine the original input (preimage attack), find another input that can produce the same hash (2nd preimage attack), or find multiple inputs that evaluate to the same hash (birthday attack).
Common Consequences
Detection Methods
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.)
Real-World Examples (10)
| CVE | CVSS | EPSS | KEV |
|---|---|---|---|
| CVE-2023-46233 | 9.1 | 1.0% | — |
| CVE-2024-52521 | 2.6 | 0.8% | — |
| CVE-2022-45141 | 9.8 | 0.7% | — |
| CVE-2024-40465 | 8.8 | 0.4% | — |
| CVE-2022-3433 | 6.5 | 0.3% | — |
| CVE-2025-41652 | 9.8 | 0.3% | — |
| CVE-2025-27595 | 9.8 | 0.3% | — |
| CVE-2025-47276 | 7.5 | 0.2% | — |
| CVE-2025-3576 | 5.9 | 0.2% | — |
| CVE-2019-13539 | 7.0 | 0.2% | — |