A security vulnerability exists in outdated versions of the x402 SDK.
Full advisory text at GitHub advisory.
pypi package report
Is x402 safe?
x402 (pypi) has 1 known vulnerability, the worst rated HIGH. Upgrade to 2.3.0 or later to clear it. No malicious-package signal is recorded.
// ai model usage
No published models are known to use this package.
cvss
7.5
high
severity band, no base score published
epss
not scored
chance of exploitation in 30 days
xyz score
4.0
medium
CyberXYZ composite out of 10
fig. 01 — GHSA-qr2g-p6q7-w82m, the advisory selected below
// 1 advisories
Is x402 safe to install?
CyberXYZ does not call a package safe in absolute terms. It records 1 known vulnerability for x402 (pypi), the worst rated HIGH, and no malicious-package signal. Whether it is acceptable depends on the version you run.
Does x402 have known vulnerabilities?
Yes. CyberXYZ records 1 known vulnerability for x402 (pypi), the worst rated HIGH. They are GHSA-qr2g-p6q7-w82m.
Which version of x402 should I use?
2.3.0 or later clears every advisory recorded for x402 (pypi). Check the release you pick before installing it.
How do I check x402 before installing?
Search x402 in CyberXYZ Check at https://cyberxyz.io/check?q=x402. The xyz Scanner checks a project's dependencies, and CyberXYZ Proxy checks each package as it is installed.
Checked 2026-11-14 at 11:33 UTC. The most recent advisory here was published 2026-03-07. Updated continuously from NVD, GHSA, OSV and CNA feeds.