This release includes 2 security fixes for security teams reviewing exposed deployments.
Published 1mo
Documentation
✓ No known CVEs patched
This release patches 2 known CVEs
Topics
cms
content
content-management
doctrine
flat-file
grav
+9 more
markdown
php
php7
symfony
twig
website
website-builder
website-generation
yaml
Affected surfaces
rce_ssrf
auth
Summary
AI summarySecurity fixes close decompression‑bomb and XSS bypass vulnerabilities in ZIP archives and Twig rendering.
Full changelog
Bugfix
- [security] ZIP archives extracted through the internal ZipArchiver are now rejected when their contents exceed safe limits on total uncompressed size, file count, or folder nesting depth, closing a second extraction path with the same decompression-bomb risk that was fixed for Direct Install (GHSA-928x-9mpw-8h56).
- [security] Editor-authored Twig in page content now has its rendered output re-checked for XSS, closing a bypass where a payload assembled at render time (such as
{{ "on" ~ "error" }}) passed the source validator and then emitted live markup (GHSA-2c4f-86xc-cr74). - A page marked Visible in the admin no longer vanishes from navigation after saving, because a blank visibility setting now falls back to its normal default instead of being read as hidden (#4153).
Security Fixes
- GHSA-928x-9mpw-8h56 — Rejects ZIP archives that exceed safe uncompressed size, file count, or folder depth limits to prevent decompression‑bomb attacks.
- GHSA-2c4f-86xc-cr74 — Re‑validates rendered Twig output for XSS, closing a bypass where concatenated strings formed malicious markup at render time.
Weekly OSS security release digest.
The CVE patches and breaking changes that affected production tools this week. One email, every Sunday.
No spam, unsubscribe anytime.
Share this release
About grav
Modern, Crazy Fast, Ridiculously Easy and Amazingly Powerful Flat-File CMS powered by PHP, Markdown, Twig, and Symfony
Beta — feedback welcome: [email protected]