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.

CVSS v3.1 Score

5.5

MEDIUM

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

EPSS — Exploit Prediction

0.0012

Probability of exploitation

0.02%

Percentile rank

EPSS estimates the probability that this vulnerability will be exploited in the wild within the next 30 days. A higher score means more likely to be exploited.

Weakness Type (CWE)

CWE-125 Out-of-bounds Read

CWE-191 CWE-191

Affected Products

Vendor	Product	Versions
vim	vim	< 9.2.0671

References

Advisories & Patches

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

Other References

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

Frequently Asked Questions

What is CVE-2026-57452? +

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. It has a CVSS v3.1 base score of 5.5 (MEDIUM).

How severe is CVE-2026-57452? +

CVE-2026-57452 has a CVSS v3.1 score of 5.5 out of 10, rated MEDIUM. This is a medium-severity vulnerability that should be remediated as part of regular maintenance. The EPSS score is 0.0012, placing it in the 0th percentile for exploitation probability.

What products are affected by CVE-2026-57452? +

CVE-2026-57452 affects products from vim, specifically: vim. Check the affected products table above for specific version ranges.

How do I check if I'm vulnerable to CVE-2026-57452? +

You can use Secably's free Website Scanner to check your website for known vulnerabilities. For infrastructure scanning, use the Port Scanner to identify exposed services that may be affected. Check the vendor advisories linked above for specific patch and version information.

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