CVE-2025-27611

base-x homograph attack allows Unicode lookalike characters to bypass validation.

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.

Category

8.7
CVSS
Severity: High
CVSS 4.0 •
EPSS 0.07%
Affected: cryptocoinjs base-x
Published at:
Updated at:

References

Link Tags
https://github.com/cryptocoinjs/base-x/security/advisories/GHSA-xq7p-g2vc-g82p
https://github.com/cryptocoinjs/base-x/pull/86

Frequently Asked Questions

What is the severity of CVE-2025-27611?
CVE-2025-27611 has been scored as a high severity vulnerability.
How to fix CVE-2025-27611?
To fix CVE-2025-27611, make sure you are using an up-to-date version of the affected component(s) by checking the vendor release notes. As for now, there are no other specific guidelines available.
Is CVE-2025-27611 being actively exploited in the wild?
As for now, there are no information to confirm that CVE-2025-27611 is being actively exploited. According to its EPSS score, there is a ~0% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
What software or system is affected by CVE-2025-27611?
CVE-2025-27611 affects cryptocoinjs base-x.
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