@0xlr/sentry-web
This report shows the evidence for @0xlr/sentry-web@999.0.0, the only known version.
This package appears in our research on the dependency confusion probes at version 99 and above, with how it works, the full package list and what to do if you installed it.
OpenSSF/OSV Malicious Advisory
imported 3mo ago · by OpenSSF/OSVOpenSSF/OSV advisory MAL-2026-5387 confirms this npm version as malicious.
Advisory
MAL-2026-5387
Source
OpenSSF Malicious Packages via OSV
Summary
Malicious code in @0xlr/sentry-web (npm)
Details
On `npm install`, this package automatically executes postinstall.js, which enumerates the entire process.env (every environment variable, including CI secrets, AWS_*, NPM_TOKEN, and any other tokens present in the install environment) along with hostname, username, homedir, cwd, argv, platform, arch, and release. The collected payload is POSTed over HTTPS to `rytxau88zxh61dw6qz4yn19naeg54vsk.oastify.com`, a Burp Collaborator out-of-band subdomain used for exfiltration. The package's own description self-identifies as a placeholder squat for the `sentry-web` name, and it ships at version 999.0.0 — a squat-marker version. Installing this package on any machine where credentials are present in the environment results in those credentials being shipped off-host on a single `npm install` invocation.
## Source: ghsa-malware (c5260b85178555d614ceedb5f6f1febe9d8e59ee55f2c7f25461d8c9a526cdae) Any computer that has this package installed or running should be considered fully compromised. All secrets and keys stored on that computer should be rotated immediately from a different computer. The package should be removed, but as full control of the computer may have been given to an outside entity, there is no guarantee that removing the package will remove all malicious software resulting from installing it.
References
Source & flagged code
0 flagged · loading sourceNo flagged code excerpts are attached to this scan.
Findings
1 High
HighOsv Malicious Advisory
Affected versions and remediation
This report applies to @0xlr/sentry-web@999.0.0.
The versions list below shows the verdict for each recorded version.
- Avoid installing @0xlr/sentry-web@999.0.0. Remove it from direct dependencies and check your lockfile for transitive copies.
- Choose an independently verified alternative or release. This report does not establish that other versions are safe.
- If this version ran, investigate the affected machine and build environment. Rotate credentials it could access and rebuild from a trusted environment.
Evidence last updated: .
Source advisory published: .
This report uses published external intelligence. The advisory does not provide a separate source-code analysis for each listed version.
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