CVE Explorer

CVE-2026-27829

Astro is a web framework. In versions 9.0.0 through 9.5.3, a bug in Astro's image pipeline allows bypassing `image.domains` / `image.remotePatterns` restrictions, enabling the server to fetch content from unauthorized remote hosts. Astro provides an `inferSize` option that fetches remote images at render time to determine their dimensions. Remote image fetches are intended to be restricted to domains the site developer has manually authorized (using the `image.domains` or `image.remotePatterns`

Lifecycle PUBLISHED1 preserved revisionFact urn:baitaphish:canonical-cve-fact-revision:v2:f735c51a510c1d497fce78753defcf9a7f42fbc7d547711c0f92af0fdeb83424

Known exploited

Not asserted

Disputed

Stale source

Conflicts

Affected products and versions

1 source assertion

{"product":"astro","vendor":"withastro","versions":[{"status":"affected","version":">= 9.0.0, < 9.5.4"}]}

cve_program_cvelist_v5affected
urn:baitaphish:normalized-source-record:v2:80986d650f4d5e64c18cd2bff3fed33988f58d4f3aeee61dea8e934f5875b63c · sha256:9ee0d9800da1a43f… · /containers/cna/affected/0

Provider-owned CVSS observations

1 source assertion

{"metric":{"attackComplexity":"LOW","attackVector":"NETWORK","availabilityImpact":"LOW","baseScore":6.5,"baseSeverity":"MEDIUM","confidentialityImpact":"NONE","integrityImpact":"LOW","privilegesRequired":"NONE","scope":"UNCHANGED","userInteraction":"NONE","vectorString":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:L","version":"3.1"},"metric_type":"cvssV3_1"}

cve_program_cvelist_v5cvss
urn:baitaphish:normalized-source-record:v2:80986d650f4d5e64c18cd2bff3fed33988f58d4f3aeee61dea8e934f5875b63c · sha256:9ee0d9800da1a43f… · /containers/cna/metrics/0/cvssV3_1

CWE assertions

1 source assertion

{"cweId":"CWE-918","description":"CWE-918: Server-Side Request Forgery (SSRF)","lang":"en","type":"CWE"}

cve_program_cvelist_v5cwe
urn:baitaphish:normalized-source-record:v2:80986d650f4d5e64c18cd2bff3fed33988f58d4f3aeee61dea8e934f5875b63c · sha256:9ee0d9800da1a43f… · /containers/cna/problemTypes/0/descriptions/0

Source references

2 source assertions

{"name":"https://github.com/withastro/astro/commit/e01e98b063e90d274c42130ec2a60cc0966622c9","tags":["x_refsource_MISC"],"url":"https://github.com/withastro/astro/commit/e01e98b063e90d274c42130ec2a60cc0966622c9"}

cve_program_cvelist_v5reference
urn:baitaphish:normalized-source-record:v2:80986d650f4d5e64c18cd2bff3fed33988f58d4f3aeee61dea8e934f5875b63c · sha256:9ee0d9800da1a43f… · /containers/cna/references/1

{"name":"https://github.com/withastro/astro/security/advisories/GHSA-cj9f-h6r6-4cx2","tags":["x_refsource_CONFIRM"],"url":"https://github.com/withastro/astro/security/advisories/GHSA-cj9f-h6r6-4cx2"}

cve_program_cvelist_v5reference
urn:baitaphish:normalized-source-record:v2:80986d650f4d5e64c18cd2bff3fed33988f58d4f3aeee61dea8e934f5875b63c · sha256:9ee0d9800da1a43f… · /containers/cna/references/0

Attribution and limitations

CVE Program CVEList V5: Reproduce the MITRE copyright designation and CVE license in copies. Source →

Provider severity values are preserved separately. Baitaphish does not convert them into a risk rating, infer affected products, or treat EPSS as observed exploitation.

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