CVE Database›CVE-2025-9287

CVE-2025-9287

cipher-base: Cipher-base hash manipulation

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Severity

Important

Red Hat Product Security

7.5

CVSS 3.1

Review impact separately from score.

Published · August 21, 2025

Updated · October 27, 2026

Description

An improper input validation vulnerability was found in the cipher-base npm package. Missing input type checks in the polyfill of the Node.js createHash function result in invalid value calculations, hanging and rewinding the hash state, including turning a tagged hash into an untagged hash, for malicious JSON-stringifyable inputs.

CVSS score applicability

The CVSS score(s) listed for this vulnerability do not reflect the associated product's status, and are included for informational purposes to better understand the severity of this vulnerability.

Mitigation

Mitigation for this issue is either not available or the currently available options do not meet the Red Hat Product Security criteria comprising ease of use and deployment, applicability to widespread installation base or stability.

CVSS / CWE

CVSS 3.1 · 7.5
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:N/I:H/A:L

CWE-20 · Improper Input Validation