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GHSA-m662-56rj-8fmm

CriticalCVSS 9.3 / 10
Published Sep 11, 2025·Last modified Sep 11, 2025
Affected Components(0)

No affected components available

Description

Impact

Npm users of PUC 1.17.3 or PUC latest were briefly affected by crypto-related malware detailed in the blog post below. This includes the extremely popular jsdelivr hosting of this file.

Patches

We unpublished the version on npm.

Workarounds

This has already been unpublished. See Prebid.js 9 release notes for suggestions on moving off the deprecated workflow of using the PUC or pointing to a dynamic version of it. PUC users pointing to latest should transition to 1.17.2 ASAP to avoid similar attacks in the future.

References

https://www.sonatype.com/blog/npm-chalk-and-debug-packages-hit-in-software-supply-chain-attack

Risk Scores
Base Score
9.3

The vulnerability can be exploited over the network without needing physical access. It is easy for an attacker to exploit this vulnerability. An attacker does not need any special privileges or access rights. No user interaction is needed for the attacker to exploit this vulnerability.

Threat Intelligence
8.1

Exploitation activity has been observed. Apply available patches or mitigations urgently.

EPSS
N/A

Probability that this vulnerability will be exploited in the wild within the next 30 days.

Exploit
Not available

We did not find any exploit available. Neither in GitHub repositories nor in the Exploit-Database.

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