NULL Pointer Dereference Affecting xlnt package, versions [0,]
Threat Intelligence
Snyk has a proof-of-concept or detailed explanation of how to exploit this vulnerability.
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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- published8 Mar 2026
- disclosed7 Mar 2026
- creditOneafter
Introduced: 7 Mar 2026
CVE-2026-3665 (opens in a new tab)How to fix?
There is no fixed version for xlnt.
Overview
Affected versions of this package are vulnerable to NULL Pointer Dereference in the read_office_document function. An attacker can cause a denial of service by providing crafted XLSX files that trigger a null pointer dereference during parsing.