CVE-2026-57452
CVE-2026-57452 is a medium-severity vulnerability in Vim with a CVSS 3.x base score of 5.5. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-125.
Key facts
- Severity: Medium (CVSS 3.x base score 5.5)
- EPSS exploit prediction: 0% (2nd percentile)
- Actively exploited: Not listed in CISA KEV
- EU (EUVD) id: EUVD-2026-39448
- Weakness: CWE-125
- Affected product: Vim
- Published:
- Last modified:
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.
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.
- How severe is CVE-2026-57452?
- CVE-2026-57452 has a CVSS 3.x base score of 5.5, rated medium severity. It is exploitable over local access with low attack complexity, requires no privileges and user interaction. Impact on confidentiality is none, integrity none, and availability high.
- Is CVE-2026-57452 being actively exploited?
- It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (2nd percentile), an estimate of the probability of exploitation in the next 30 days.
- What products are affected by CVE-2026-57452?
- CVE-2026-57452 affects Vim. See the affected-products list for the exact vulnerable versions.
- How do I fix CVE-2026-57452?
- Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
- Does CVE-2026-57452 have an EU (EUVD) identifier?
- Yes. CVE-2026-57452 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-39448.
- When was CVE-2026-57452 published?
- CVE-2026-57452 was published on 2026-06-25 and last updated on 2026-06-26.
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
Affected products (1)
- cpe:2.3:a:vim:vim:*:*:*:*:*:*:*:*
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