MEDIUMnpm →
postcss-selector-parser allows denial of service through uncontrolled AST recursion
postcss-selector-parser allows denial of service through uncontrolled AST recursion
Affected packages
- postcss-selector-parser
Exploit signal
- Known exploited (CISA KEV)
- No
- EPSS score
- —
- EPSS percentile
- —
EPSS is the probability a CVE is exploited in the wild; percentile is its rank among all CVEs.
Sources
- https://nvd.nist.gov/vuln/detail/CVE-2026-9358
- https://github.com/postcss/postcss-selector-parser/commit/5bc698cef66f8abd12610dc623e5d67cbc0f869d
- https://github.com/postcss/postcss-selector-parser/commit/e37c5b0b785b165e27508d2489fdec8e0f18b10a
- https://gist.github.com/bx33661/581e3a38134601c04e19b4dfc9b459b9
- https://github.com/postcss/postcss-selector-parser
- https://github.com/postcss/postcss-selector-parser/releases/tag/6.1.3
- https://github.com/postcss/postcss-selector-parser/releases/tag/7.1.3
- https://vuldb.com/cve/CVE-2026-9358
- https://vuldb.com/submit/813080
- https://vuldb.com/vuln/365321
- https://vuldb.com/vuln/365321/cti
Structured record: https://osv.dev/vulnerability/GHSA-w9m9-85wc-3x92
Recommended response stack
Snyk — Scan your dependencies in CI and fix this vulnerability.→Socket — Detect malicious and compromised packages before they ship.→
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