Out-of-bounds Read Affecting boazsegev/facil.io package, versions [0.6.0,]
Threat Intelligence
The probability is the direct output of the EPSS model, and conveys an overall sense of the threat of exploitation in the wild. The percentile measures the EPSS probability relative to all known EPSS scores. Note: This data is updated daily, relying on the latest available EPSS model version. Check out the EPSS documentation for more details.
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- published2 Aug 2026
- disclosed27 Jul 2026
- creditUnknown
Introduced: 27 Jul 2026
NewCVE-2026-66729 (opens in a new tab)How to fix?
There is no fixed version for boazsegev/facil.io.
Overview
Affected versions of this package are vulnerable to Out-of-bounds Read via the multipart MIME body parser when processing a crafted Content-Disposition header with an empty field name. An attacker can cause the server to crash by triggering an out-of-bounds memory read past the name pointer, resulting in a bus fault with a single POST request.