Directory Traversal Affecting cadence-web package, versions <4.0.16-r4
Threat Intelligence
The probability is the direct output of the EPSS model, and conveys an overall sense of the threat of exploitation in the wild. The percentile measures the EPSS probability relative to all known EPSS scores. Note: This data is updated daily, relying on the latest available EPSS model version. Check out the EPSS documentation for more details.
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Test your applications- Snyk IDSNYK-CHAINGUARDLATEST-CADENCEWEB-18788346
- published14 Aug 2026
- disclosed17 Aug 2026
Introduced: 14 Aug 2026
NewCVE-2026-73646 (opens in a new tab)How to fix?
Upgrade Chainguard cadence-web to version 4.0.16-r4 or higher.
NVD Description
Note: Versions mentioned in the description apply only to the upstream cadence-web package and not the cadence-web package as distributed by Chainguard.
See How to fix? for Chainguard relevant fixed versions and status.
PostCSS takes a CSS file and provides an API to analyze and modify its rules by transforming the rules into an Abstract Syntax Tree. Prior to 8.5.18, lib/previous-map.js loadMap() passes attacker-controlled sourceMappingURL values to join(dirname(opts.from), annotation), and loadFile() permits traversed or absolute .map paths, allowing untrusted CSS processed without map: false to disclose sourcesContent from arbitrary reachable .map files through result.map. This issue is fixed in version 8.5.18.