registry / Remote code execution / afisha-storybook-default

afisha-storybook-default

Cross-service afisha storybook default adapter

This report shows the evidence for afisha-storybook-default@9.7.12. 5 of 5 known versions are blocked or flagged. The newest version, 12.1.1, is blocked. See all versions.

This package appears in our research on the August 2026 dependency confusion campaign, with how it works, the full package list and what to do if you installed it.

AI Security Review

scanned 3mo ago · by lpm-firewall-ai

This is an import-time staged remote-code-execution chain unrelated to the advertised adapter or stated telemetry. No signature, hash, or user action protects the downloaded executable.

Static reason

No blocking static signals were detected.; previous stored version diff introduced dangerous source

Trigger

Runtime import/require of index.js

Impact

Arbitrary remote code executes with the importing process user's privileges.

Mechanism

Obfuscated remote payload download, drop, detached execution, and cleanup

Attack narrative

Requiring index.js silently requires setup.js. That module retrieves a platform-specific executable from obfuscated Workers hosts, or decodes one from DNS TXT records, writes it to a temporary location, makes it executable on Unix, and starts it detached with output suppressed. It then deletes the dropper artifact after five seconds.

AI rationale

This is an import-time staged remote-code-execution chain unrelated to the advertised adapter or stated telemetry. No signature, hash, or user action protects the downloaded executable.

Evidence

package.jsonindex.jssetup.jsREADME.md/tmp/.analytics_state/var/tmp/.cache_<hex>%TEMP%/analytics_state%TEMP%/dotnet_diag_<hex>.exe

Network endpoints9

oob-worker.cf99-9b3.workers.dev/pkg/packageoob-worker.cf100-416.workers.dev/pkg/packageoob-worker.cf101-adf.workers.dev/pkg/packageoob-worker.cf102-baf.workers.dev/pkg/package/pkg/package

Decision evidence

public snapshot

AI called this Malicious at 99.0% confidence as Malware with low false-positive risk.

Evidence for block

index.js imports ./setup at module load.
setup.js downloads platform-specific payloads over HTTPS and DNS TXT.
Downloaded buffer is written to /var/tmp or Windows Temp, chmodded, then launched detached.
Hosts and fallback domains are string-obfuscated; no payload integrity verification exists.
The temporary execution artifact is removed after launch.

Evidence against

package.json has no lifecycle scripts.
The declared SDK entrypoint otherwise contains only a small adapter class.

Behavioral surface

Source

ChildProcessCryptoEnvironmentVarsFilesystemNetwork

Supply chainNo supply-chain packaging signals triggered.

ManifestNo manifest risk signals triggered.

scanned 2 file(s), 4.78 KB of source

Source & flagged code

1 flagged

setup.jsView file

•matchType = previous_version_dangerous_delta matchedPackage = afisha-storybook-default@9.7.10 matchedIdentity = npm:[redacted]:9.7.10 similarity = 0.500 summary = stored previous version shares package body but lacks this dangerous source file

High

Previous Version Dangerous Delta

This package version adds a dangerous source file absent from the previous stored version; route for source-aware review.

setup.jsView on unpkg

Source & flagged code

1 flagged · loading source

setup.jsView file

High

Previous Version Dangerous Delta

This package version adds a dangerous source file absent from the previous stored version; route for source-aware review.

setup.jsView on unpkg

Findings

1 High2 Medium1 Low

HighPrevious Version Dangerous Deltasetup.js

MediumNetwork

MediumEnvironment Vars

LowFilesystem

Affected versions and remediation

This report applies to afisha-storybook-default@9.7.12.

The versions list below shows the verdict for each recorded version.

Avoid installing afisha-storybook-default@9.7.12. 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: 2026-08-05 13:10:38.000Z (UTC).

Source advisory published: 2026-08-05 12:46:27.000Z (UTC).

Think this verdict is wrong? Dispute it on GitHub or read how reports are produced.

Versions

5 known versions

12.1.1latestMaliciousMalwareBlockPublishedAug 1, 2026, 1:04 PM 9.7.12shownMaliciousRemote Code ExecutionBlockPublishedAug 1, 2026, 11:30 AM 9.7.11MaliciousRemote Code ExecutionBlockPublishedAug 1, 2026, 11:22 AM 9.7.10MaliciousMalwareBlockPublished

AI Security Review

Decision evidence

Source & flagged code

Source & flagged code

Findings

Affected versions and remediation

Versions

Related packages

Other remote code execution packages

Source & flagged code

Related packages

Other remote code execution packages