Buffer Over-read Affecting gzip package, versions [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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- published30 Jun 2026
- disclosed29 Jun 2026
- creditUnknown
Introduced: 29 Jun 2026
CVE-2026-41992 (opens in a new tab)How to fix?
A fix was pushed into the master branch but not yet published.
Overview
Affected versions of this package are vulnerable to Buffer Over-read in the LZH decompression process due to improper reuse of shared global state between different decompression formats within a single execution. An attacker can cause an out-of-bounds read by decompressing a specially crafted LZW file followed by a specially crafted LZH file in a single execution, leading to reading past the end of the allocated global buffer. This is only exploitable if both file types are processed in the same invocation.