CVE-2025-54883

Vision UI's security-kit Contains Cryptographic Weakness

State
Published
Severity
9.3 Critical
Published
Aug 5, 2025
Updated
Aug 6, 2025
Reserved
Jul 31, 2025

Read the record on cve.org

Description

Vision UI is a collection of enterprise-grade, dependency-free modules for modern web projects. In versions 1.4.0 and below, the getSecureRandomInt function in security-kit versions prior to 3.5.0 (packaged in Vision-ui <= 1.4.0) contains a critical cryptographic weakness. Due to a silent 32-bit integer overflow in its internal masking logic, the function fails to produce a uniform distribution of random numbers when the requested range between min and max is larger than 2³². The root cause is the use of a 32-bit bitwise left-shift operation (<<) to generate a bitmask for the rejection sampling algorithm. This causes the mask to be incorrect for any range requiring 32 or more bits of entropy. This issue is fixed in version 1.5.0.

Scores

CVSSScoreVectorSource
4.09.3 CriticalCVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:N/SC:L/SI:L/SA:NGitHub_M

Weaknesses

  • CWE-338 Use of Cryptographically Weak Pseudo-Random Number Generator (PRNG)

Affected Products

ProductVersions
Vision-uiDavidOsipov
  • < 1.5.0Affected

References

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