High severityOSV Advisory· Published Apr 30, 2025· Updated Apr 15, 2026

CVE-2025-27611

Description

base-x is a base encoder and decoder of any given alphabet using bitcoin style leading zero compression. Versions 4.0.0, 5.0.0, and all prior to 3.0.11, are vulnerable to attackers potentially deceiving users into sending funds to an unintended address. This issue has been patched in versions 3.0.11, 4.0.1, and 5.0.1.

AI Insight

LLM-synthesized narrative grounded in this CVE's description and references.

Affected packages

Versions sourced from the GitHub Security Advisory.

Package	Affected versions	Patched versions
base-xnpm	>= 5.0.0, < 5.0.1	5.0.1
base-xnpm	>= 4.0.0, < 4.0.1	4.0.1
base-xnpm	< 3.0.11	3.0.11

Affected products

Cryptocoinjs/Base XOSV
Range: v1.0.1, v1.0.2, v1.0.3, …
ghsa-coords
pkg:npm/base-x
Range: >= 5.0.0, < 5.0.1

Patches

Vulnerability mechanics

References

github.com/advisories/GHSA-xq7p-g2vc-g82pghsaADVISORY
nvd.nist.gov/vuln/detail/CVE-2025-27611ghsaADVISORY
github.com/cryptocoinjs/base-x/pull/86nvdWEB
github.com/cryptocoinjs/base-x/security/advisories/GHSA-xq7p-g2vc-g82pnvdWEB

News mentions

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cvss	0.455
epss	0.000
exploit	0.000
kev	0.000
patch	-0.070
ransomware	0.000