What’s Vulnerable › Vulnerabilities

CVE-2026-57452: Vim: Out-of-bounds Read with libsodium-encrypted Files

• Severity: medium (CVSS 5.5 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.2% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2026-06-25 · updated 2026-06-26
• Weakness: CWE-125

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.

Affected products

• vim/vim: before 9.2.0671 — fixed in 9.2.0671

How to fix

Upgrade to a fixed version: vim/vim 9.2.0671. Check the vendor advisory for mitigations.

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

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