XPath Injection in Withastro Astro

CVE-2026-59728

Astro is a web framework for content-driven websites. In versions 1.0.0 through 4.0.18, the source.title and enclosure.type item fields in packages/astro-rss/src/index.ts are interpolated directly into XML template strings without XML-char…

CVSS v3 metric

CVSS v3 base score 4.3 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:L/A:N.

Affected products

Weakness classification (CWE)

References

Frequently asked questions

What is CVE-2026-59728?
CVE-2026-59728 is a medium-severity vulnerability in Withastro Astro, classified under XML Injection (Blind XPath Injection). CVSS score: 4.3/10. Published 2026-07-27.
How severe is CVE-2026-59728?
Medium severity. CVSS v3 base score is 4.3 out of 10.