CVE-2026-57452

Vim: Out-of-bounds Read with libsodium-encrypted Files

CVSS 5.5 MEDIUMEPSS 0.1%CWE-125 CWE-191

Vexday Risk Score

13Low

SSVC decision (CISA)

Track

No exploitation signal → monitor

CVSS 5.5EPSS 0.1%KEV nãoPoC —Nuclei —Metasploit —Patch —

Lifecycle

25 Jun 2026Published on NVD

Recommendation: Monitor — no exploitation signal at the moment.

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.

CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H

Affected products

vim · vim

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References

https://github.com/vim/vim/commit/c8777cec25dcfae89c42e9aff51af61f71c5745f https://github.com/vim/vim/releases/tag/v9.2.0671 https://github.com/vim/vim/security/advisories/GHSA-c4j9-wr9j-4486