registry / @prosopo/procaptcha-bundle / 4.2.2
@prosopo/procaptcha-bundle@4.2.2
AI Security Review
scanned 2mo ago · by lpm-firewall-aiSource inspection found a package-aligned browser captcha implementation with no lifecycle hook or concrete malicious behavior. The randomized build chunk naming is a non-runtime build detail and does not establish an attack chain.
Static reason
One or more suspicious static signals were detected.
Trigger
Importing the browser bundle or rendering a captcha widget with a site key.
Impact
Expected captcha UI and detector preparation; no confirmed unconsented system mutation or exfiltration.
Mechanism
Captcha widget mounting and same-vendor detector prefetch.
AI rationale
Source inspection found a package-aligned browser captcha implementation with no lifecycle hook or concrete malicious behavior. The randomized build chunk naming is a non-runtime build detail and does not establish an attack chain.
Evidence
package.jsonsrc/index.tssrc/util/configCreator.tssrc/util/widgetFactory.tssrc/util/captcha/captchaRenderer.tsxsrc/util/captcha/components/bundleCaptcha.tsxvite.config.tsdist/index.js
Decision evidence
public snapshotAI called this Clean at 92.0% confidence as Benign with low false-positive risk.
Evidence for AI clean decision
- The bundle dynamically imports related captcha modules and starts detector prefetch only when a site key is supplied.
- The development build configuration randomizes browser chunk names, but it is not an install hook or runtime payload in the published entrypoint.
Evidence against
- package.json declares no preinstall, install, or postinstall hook.
- The runtime code is a browser captcha widget that mounts React UI, handles widget events, and exposes a window API.
- No credential harvesting, filesystem access, shell execution, eval, remote URL, or network client appears in the shipped runtime source.
- The environment variables configure captcha settings; their values are passed into a configuration object rather than collected or exfiltrated.
Behavioral surface
CryptoEnvironmentVarsFilesystem
HighEntropyStringsUrlStrings
Source & flagged code
3 flaggeddist/index.jsView file
4package = @prosopo/procaptcha-bundle; repositoryIdentity = captcha; dependency = @prosopo/procaptcha-common
L4: import { WidgetThemeResolver } from "./util/widgetThemeResolver.js";
L5: import { getWindowCallback } from "@prosopo/procaptcha-common";
L6: import { at } from "@prosopo/util";
High
Copied Package Dependency Bridge
Package metadata claims a different repository identity while copied source loads a runtime dependency bridge.
dist/index.jsView on unpkg · L4src/index.tsView file
81const startDetectorPrefetch = (
siteKey: string | null,
flags: { ipv4?: boolean; ipv6?: boolean },
): void => {
if (!siteKey) return;
void Promise.all([
import("@prosopo/procaptcha-frictionless"),
import("@prosopo/procaptcha-common"),
])
.then(([frictionless, common]) => {
frictionless.prefetchDetector(
process.env.PROSOPO_DEFAULT_ENVIRONMENT as EnvironmentTypes,
common.pickIpMode(flags),
siteKey,
);
})
.catch(() => undefined);
};
Low
Ai Review Evidence
The bundle dynamically imports related captcha modules and starts detector prefetch only when a site key is supplied.
src/index.tsView on unpkg · L81Findings
1 High2 Medium6 Low
HighCopied Package Dependency Bridgedist/index.js
MediumEnvironment Vars
MediumStructural Risk Force Deep Review
LowScripts Present
LowFilesystem
LowHigh Entropy Strings
LowUrl Strings
LowAi Review Evidencesrc/index.ts
LowSuspicious Lifecycle Evidencevite.config.ts
Affected versions and remediation
This report applies to @prosopo/procaptcha-bundle@4.2.2.
See all versions of @prosopo/procaptcha-bundle for other recorded verdicts.
- Review the evidence and your use of @prosopo/procaptcha-bundle@4.2.2 before allowing it. Restrict the permissions described in this report.
- Choose an independently verified alternative or release. This report does not establish that other versions are safe.
Evidence last updated: .
Think this verdict is wrong? Dispute it on GitHub or read how reports are produced.