CVE-2026-57452
MediumCVSS 5.5Exploitation Probability (EPSS)
Low risk2th percentile - higher than 2% of all known CVEs
Summary
Vim before version 9.2.0671 has a vulnerability when opening files encrypted with VimCrypt~04! or VimCrypt~05! (xchacha20poly1305, requires +sodium feature). If the file body is shorter than a single libsodium secretstream header, an unsigned length calculation underflows and a subsequent decryption call reads far past the end of the input buffer, crashing Vim.
Risk Assessment
An attacker can crash Vim by providing a specially crafted short encrypted file, leading to a denial of service (DoS) for the user attempting to open it.
Recommendation
Update Vim to version 9.2.0671 or later, which contains the fix for this vulnerability.
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Original NVD description (English source)
Vim is an open source, command line text editor. Prior to 9.2.0671, when Vim opens a file encrypted with the VimCrypt~04! or VimCrypt~05! method (xchacha20poly1305, requires the +sodium feature) whose body is shorter than a single libsodium secretstream header, an unsigned length calculation underflows and a subsequent decryption call reads far past the end of the input buffer, crashing Vim. This vulnerability is fixed in 9.2.0671.
Vulnerability data from NVD (NIST) · CISA KEV · EPSS