Prebid.js NPM package briefly compromised
Priority LOW 39CWE-506Published · Updated
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- Active
- Attack complexity
- Low
- Attack requirements
- None
- Impact type
- Code execution
- Confidentiality · integrity · availability
- High · High · High
- Fix status
- Fixed
Attack profile from CVSS 4.0 · CNA. Fix status from CNA and GitHub. Impact type from CWE-506.
Summary
Prebid.js is a free and open source library for publishers to quickly implement header bidding. NPM users of prebid 10.9.2 may have been briefly compromised by a malware campaign. The malicious code attempts to redirect crypto transactions on the site to the attackers' wallet. Version 10.10.0 fixes the issue. As a workaround, it is also possible to downgrade to 10.9.1.
Why it matters now
Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.00351 28th percentileScored 2026-11-07
Fix Fixed prebid.js (npm): 10.10.0
SSVC decision points
CISA ADP · SSVC 2.0.3
- Exploitation
- None
- Automatable
- No
- Technical impact
- Total
The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| prebid | Prebid.js | = 10.9.2 | — | No fix listed | CNA |
| — | prebid.js (npm) | 10.9.2 to before 10.10.0 | 10.10.0 | Patch available | GHSA-jwq7-6j4r-2f92 |
- Prebid.js Vendorprebid Affected = 10.9.2 Fixed in — No fix listed CNA
- prebid.js (npm) Vendor— Affected 10.9.2 to before 10.10.0 Fixed in 10.10.0 Patch available GHSA-jwq7-6j4r-2f92
Remediation
- Fix · GHSA-jwq7-6j4r-2f92 prebid.js (npm) Fixed in 10.10.0 Advisory →
Timeline
- 2026-10-02 Threatist record created from CVE-2025-59038
- 2026-10-03 Alias added: GHSA-jwq7-6j4r-2f92
References
Other 5
- https://github.com/prebid/Prebid.js/security/advisories/GHSA-jwq7-6j4r-2f92
- https://www.sonatype.com/blog/npm-chalk-and-debug-packages-hit-in-software-supply-chain-attack
- https://github.com/prebid/Prebid.js/commit/72c7f184028f51ba15cdac744d56590b0f2b1f1e
- https://github.com/prebid/Prebid.js
- https://github.com/prebid/Prebid.js/releases/tag/10.10.0
More prebid vulnerabilities
- TI-2026-39547 prebid-server's request forgery vulnerability allows for possible host environment data extraction CVSS 3.1CRITICAL 10.0
- TI-2026-39546 Prebid Server Java: Vulnerability to request forgery allows for possible host environment data extraction CVSS 3.1CRITICAL 10.0
- TI-2025-36681 Prebid Universal Creative on npm briefly compromised CVSS 4.0CRITICAL 9.3
Sources
- CVE-2025-59038 · CVE Program
- CVE-2025-59038 · NVD
- FIRST EPSS
- GHSA-jwq7-6j4r-2f92 · GitHub Advisory Database · CC BY 4.0
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences