chore(deps): update dependency astro to v6.1.10 [security]

[renovate]

This PR contains the following updates:

Package	Change	Age	Confidence
astro (source)	6.1.9 → 6.1.10

---

Warning

Some dependencies could not be looked up. Check the Dependency Dashboard for more information.

---

Astro: Server island encrypted parameters vulnerable to cross-component replay

CVE-2026-45028 / GHSA-xr5h-phrj-8vxv

More information

Details

Impact

Astro versions prior to 6.1.10 used AES-GCM encryption to protect the confidentiality and integrity of server island props and slots parameters, but did not bind the ciphertext to its intended component or parameter type. An attacker could replay one component's encrypted props (p) value as another component's slots (s) value, or vice versa.

Since slots contain raw unescaped HTML while props may contain user-controlled values, this could lead to XSS in applications that meet all of the following conditions:

• The application uses server islands
• Two different server island components share the same key name for a prop and a slot
• An attacker has full control over the value of the overlapping prop (requires a dynamically rendered page)

These conditions are very unlikely to occur in real-world production applications.

Patches

This has been patched in astro@6.1.10.

The fix binds each encrypted parameter to its target component and purpose using AES-GCM authenticated additional data (AAD). Each ciphertext now includes context like props:IslandName or slots:IslandName, so encrypted data for one component cannot be replayed against a different component, and encrypted props cannot be reused as slots.

References

• Fix PR: https://github.com/withastro/astro/pull/16457
• Example demonstrating the vulnerability: https://github.com/CyberSecurityAustria/ACSC2026-web-astronomical

Severity

• CVSS Score: 2.9 / 10 (Low)
• Vector String: CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N/E:P

References

• https://github.com/withastro/astro/security/advisories/GHSA-xr5h-phrj-8vxv
• https://github.com/withastro/astro/pull/16457
• https://github.com/withastro/astro/commit/3d82220a1549e699e34ed433f3846a919f4c02bd
• https://nvd.nist.gov/vuln/detail/CVE-2026-45028
• https://github.com/advisories/GHSA-xr5h-phrj-8vxv

This data is provided by the GitHub Advisory Database (CC-BY 4.0).

---

Release Notes

withastro/astro (astro)

v6.1.10

Compare Source

Patch Changes

• #​16479 1058428 Thanks @​matthewp! - Fixes a spurious [WARN] [content] Content config not loaded warning during astro dev for projects that don't use content collections

• #​16457 3d82220 Thanks @​matthewp! - Hardens server island encryption to prevent encrypted data from one island component being replayed against a different one

• #​16481 152700e Thanks @​matthewp! - Fixes a spurious 404 request for a dev toolbar sourcemap during astro dev caused by the browser mis-resolving a relative sourceMappingURL from the /@​id/ URL prefix

• #​16480 1bcb43b Thanks @​matthewp! - Fixes an unnecessary full page reload on first navigation during dev

---

Configuration

📅 Schedule: (UTC)

• Branch creation
  • ""
• Automerge
  • At any time (no schedule defined)

🚦 Automerge: Enabled.

♻ Rebasing: Whenever PR is behind base branch, or you tick the rebase/retry checkbox.

🔕 Ignore: Close this PR and you won't be reminded about this update again.

---

• If you want to rebase/retry this PR, check this box

---

This PR was generated by Mend Renovate. View the repository job log.