CVE-2026-57452

Description

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.

PUBLISHED Reserved 2026-06-24 | Published 2026-06-25 | Updated 2026-06-25 | Assigner GitHub_M

Problem types

CWE-125: Out-of-bounds Read

CWE-191: Integer Underflow (Wrap or Wraparound)

Product status

References

github.com/vim/vim/security/advisories/GHSA-c4j9-wr9j-4486

github.com/...ommit/c8777cec25dcfae89c42e9aff51af61f71c5745f

github.com/vim/vim/releases/tag/v9.2.0671

cve.org (CVE-2026-57452)

nvd.nist.gov (CVE-2026-57452)

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