Lucene search
+L

CVE-2026-45623 PostCSS: Arbitrary file read and information disclosure via attacker-controlled sourceMappingURL in CSS comments

🗓️ 27 Jul 2026 17:23:13Reported by GitHub_MType 
cvelist
 cvelist
🔗 www.cve.org👁 93 Views

PostCSS before 8.5.12 allowed arbitrary file read via source mapping URL in CSS comments, leaking initial bytes.

Related
Affected
Refs
ReporterTitlePublishedViews
Family
attackerkb
ATTACKERKB
CVE-2026-45623
27 Jul 202617:23
attackerkb
cgr
Chainguard
CVE-2026-45623 vulnerabilities
28 Jul 202608:22
cgr
circl
Circl
CVE-2026-45623
23 Jul 202616:35
circl
cve
CVE
CVE-2026-45623
27 Jul 202617:23
cve
cve
CVE
CVE-2026-69153
3 Aug 202616:56
cve
debiancve
Debian CVE
CVE-2026-45623
27 Jul 202617:23
debiancve
euvd
EUVD
EUVD-2026-49376
27 Jul 202617:23
euvd
github
Github Security Blog
PostCSS: Arbitrary file read and information disclosure via attacker-controlled sourceMappingURL in CSS comments
23 Jul 202615:06
github
nvd
NVD
CVE-2026-45623
27 Jul 202618:16
nvd
osv
OSV
CGA-26J2-Q573-6PV4
27 Jul 202622:49
osv
Rows per page
[
  {
    "vendor": "postcss",
    "product": "postcss",
    "versions": [
      {
        "version": "< 8.5.12",
        "status": "affected"
      }
    ]
  }
]

Data

Build on a solid foundation with Vulners data

We provide the essential building blocks for cybersecurity solutions with comprehensive, structured, and constantly updated vulnerability and exploits data

Api

Power your application with Vulners API

The Vulners REST API offers reliable, high-performance access to vulnerability intelligence, with 99.9% SLA uptime and CDN-backed data delivery for seamless global access

App

Assess and manage vulnerabilities with Vulners tools

Built on top of Vulners' database and SDK, end-user solutions give security professionals and developers lightweight and powerful tools for vulnerability remediation