PT-2026-27488 · Astro · Astro

Christos-Eth · Published 2026-03-24 · Updated 2026-03-26 · CVE-2026-33769

Positive Technologies (AI Summary)

CVSS v4.0

6.3

Medium

Base vector

AV:N/AC:L/AT:P/PR:N/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N

Name of the Vulnerable Software and Affected Versions Astro versions 2.10.10 through 5.18.0

Description Astro’s remotePatterns path enforcement for remote URLs used by server-side fetchers, such as the image optimization endpoint, is affected by an issue. The path matching logic for /* wildcards is unanchored, allowing a pathname containing the allowed prefix later in the path to still match. This can allow an attacker to fetch paths outside the intended allowlisted prefix on an otherwise allowed host.

Recommendations Update to version 5.18.1 or later.

Exploit

Fix

RCE

Weakness Enumeration

CWE-20

CWE-183

Related Identifiers

CVE-2026-33769

GHSA-G735-7G2W-HH3F

Affected Products

Astro

References · 7

• 🔥 https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/33xxx/CVE-2026-33769.json · Exploit
• https://github.com/withastro/astro/security/advisories/GHSA-g735-7g2w-hh3f · Vendor Advisory
• https://osv.dev/vulnerability/CVE-2026-33769 · Vendor Advisory
• https://osv.dev/vulnerability/GHSA-g735-7g2w-hh3f · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2026-33769 · Security Note
• https://github.com/withastro/astro · Note
• https://twitter.com/cyberbivash/status/2036545816773492913 · Twitter Post