CVE-2022-39218 is a critical vulnerability affecting Fastly's Compute@Edge JavaScript SDK versions prior to 0.5.3, where the Math.random and crypto.getRandomValues functions use a predictable pseudorandom number generator (PRNG) due to a fixed seed. This allows an attacker to predict generated random numbers, potentially bypassing cryptographic security controls and disclosing sensitive data. With a CVSS score of 7.5 (High), this vulnerability is remotely exploitable with low attack complexity and can lead to high confidentiality impact. While no active exploitation, public exploit code, or significant community discussion has been observed, the absence of known workarounds emphasizes the importance of patching to version 0.5.3.
| Vendor | Product | Version(s) | CPE |
|---|---|---|---|
< 0.5.3CPE matchmatch criteria | cpe:2.3:a:fastly:js-compute:*:*:*:*:*:node.js:*:* |
CVSS version used by this source: 3.1
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
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