CVE-2026-73646
CVE-2026-73646: 1 tracked advisory record across Red Hat. Compare vendor sources and published fix guidance.
Compare the source-linked records below. Ratings and product/version details belong to each advisory; they are not a single CVE-wide score or proof that every listed product is affected. How VulniPulse collects and checks evidence.
Vendor advisory comparison
Red Hat
1 advisory- Advisory severityHigh7.5
High [CVE-2026-73646] Information disclosure via path traversal in source map auto-loading
CVE-2026-73646Source published Source updated
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. A flaw was found in PostCSS. An attacker can exploit a path traversal vulnerability by providing specially crafted `sourceMappingURL` values in untrusted CSS files. This allows the attacker to disclose sensitive `sourcesContent` from arbitrary `.map` files accessible on the system, leading to…
- Affected products in this advisory
- Red Hat Advanced Cluster Management for Kubernetes 2.11
- Red Hat Advanced Cluster Management for Kubernetes 2.13
- Red Hat Hardened Images
- Red Hat Migration Toolkit 1.8
23 more entries in the full advisory.
- Source-reported affected versions
- < 8.5.18
- Source-reported fixed versions
- 8.5.18
- rhacm2/console-rhel9:1788880484
- rhacm2/console-rhel9:1788972841
- prometheus3-13-main-3.13.2-0.2.hum1
23 more entries in the full advisory.
- Mitigation guidance
- No mitigation guidance extracted; consult the source.
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