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postcss: PostCSS: Information disclosure via crafted sourceMappingURL

🗓️ 20 Aug 2026 16:08:12Reported by RedHatType 
redhat
 redhat🔗 access.redhat.com👁 15 Views

PostCSS information disclosure via crafted sourceMappingURL when from parameter is unset, exposing source maps.

Related
Packages
Refs
ReporterTitlePublishedViews
Family
ibm
IBM Security Bulletins		Security Bulletin: IBM Maximo Application Suite - Cluster Performance Insights uses ansible_core-2.19.11, postcss-8.5.10 and dompurify-3.4.11 which are vulnerable to CVE-2026-16493, CVE-2026-45623, CVE-2026-69153 and CVE-2026-66010
28 Aug 202610:04
–ibm
ibm
IBM Security Bulletins		Security Bulletin: There are vulnerabilities in IBM Maximo Manage application in IBM Maximo Application Suite (CVE-2026-66010, CVE-2026-54515, CVE-2026-59889, CVE-2026-49844, CVE-2026-69153)
28 Aug 202605:58
–ibm
attackerkb
ATTACKERKB		CVE-2026-69153
3 Aug 202616:56
–attackerkb
cgr
Chainguard		CVE-2026-69153 vulnerabilities
4 Aug 202620:23
–cgr
circl
Circl		CVE-2026-69153
3 Aug 202618:28
–circl
cve
CVE		CVE-2026-69153
3 Aug 202616:56
–cve
cvelist
Cvelist		CVE-2026-69153 PostCSS: incomplete fix of CVE-2026-45623 — attacker-controlled sourceMappingURL reads arbitrary .map files when `from` is unset
3 Aug 202616:56
–cvelist
debiancve
Debian CVE		CVE-2026-69153
3 Aug 202616:56
–debiancve
euvd
EUVD		EUVD-2026-52373
3 Aug 202616:56
–euvd
github
Github Security Blog		PostCSS: incomplete fix of GHSA-6g55-p6wh-862q — attacker-controlled sourceMappingURL reads arbitrary .map files when `from` is unset
3 Aug 202617:11
–github
Rows per page
OSOS VersionArchitecturePackagePackage VersionFilename
Red Hat Enterprise Linux10.2x86_64rh-podman-desktop1.1.2-1.el10_2rh-podman-desktop-1.1.2-1.el10_2.x86_64.rpm

Data

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10 Sep 2026 09:45Current
6.2Medium risk
Vulners AI Score6.2
CVSS 3.15.3
CVSS 46.3
EPSS0.00451
SSVC
CWE-22
PostCSSinformation disclosuresource mapcrafted inputremote attacksource code exposuremisconfiguration
15