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NPM: PostCSS: incomplete fix of GHSA-6g55-p6wh-862q — attacker-controlled sourceMappingURL reads arbitrary .map files when `from` is unset

🗓️ 03 Aug 2026 17:11:39Reported by PatchstackType 
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 patchstack
🔗 patchstack.com👁 5 Views

NPM PostCSS fix for GHSA-6g55-p6wh-862q incomplete; attackers can read arbitrary .map files when from is unset.

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03 Aug 2026 17:11Current
5.6Medium risk
Vulners AI Score5.6
CVSS 46.3
SSVC
5