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Astro: XSS via unescaped spread attribute names in renderHTMLElement (incomplete fix for CVE-2026-54298)
Astro: XSS via unescaped spread attribute names in renderHTMLElement (incomplete fix for CVE-2026-54298)
Affected packages
- astro
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://github.com/withastro/astro/security/advisories/GHSA-f48w-9m4c-m7f5
- https://nvd.nist.gov/vuln/detail/CVE-2026-59729
- https://github.com/withastro/astro/pull/17251
- https://github.com/withastro/astro/commit/5240e26c9dd91f9bc7140dcfacdb48d5a132830d
- https://github.com/withastro/astro
- https://github.com/withastro/astro/releases/tag/astro@7.0.6
Structured record: https://osv.dev/vulnerability/GHSA-f48w-9m4c-m7f5
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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