HIGHnpm →
fflate unzipSync can enter an infinite loop when parsing malformed ZIP64 archives
fflate unzipSync can enter an infinite loop when parsing malformed ZIP64 archives
Affected packages
- fflate
Exploit signal
- Known exploited (CISA KEV)
- No
- EPSS score
- —
- EPSS percentile
- —
EPSS is the probability a CVE is exploited in the wild; percentile is its rank among all CVEs.
Sources
- https://nvd.nist.gov/vuln/detail/CVE-2026-45820
- https://github.com/101arrowz/fflate/commit/e6d5e6e1076892f72770ac732d83c81da9f3316e
- https://github.com/101arrowz/fflate
- https://github.com/101arrowz/fflate/blob/f7873560ad229c22c4b23b06c6a3806ffde77569/src/index.ts#L2714
- https://github.com/101arrowz/fflate/releases/tag/v0.8.3
Structured record: https://osv.dev/vulnerability/GHSA-px8p-9vwx-vf98
Recommended response stack
Snyk — Scan your dependencies in CI and fix this vulnerability.→Socket — Detect malicious and compromised packages before they ship.→
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