GHSA-4h8f-c635-25p7
ibexa/post-install affected by Breach with Varnish VCL
Impact
This is not a vulnerability in the code per se, but included platform.sh Varnish VCL templates and Apache/Nginx vhost templates enable compression of API and JSON messages. This is a potential case of the BREACH vulnerability, which affects HTTP compression, where secrets can be extracted through carefully crafted requests. The fix disables compression in these templates. Please make sure to make the same change in your configuration files, see the release notes for specific instructions.
Patches
- See "Patched versions".
- v1.0: https://github.com/ibexa/post-install/commit/d91cc02623dd3263a99a94ace133c95e48909e5d
- v4.6: https://github.com/ibexa/post-install/commit/ae7c3c2081a862c75b90828f08bd74436ceb8fe8
Workarounds
Make sure HTTP compression is disabled for REST API requests and other communication that might contain secrets.
References
- Advisory: https://developers.ibexa.co/security-advisories/ibexa-sa-2024-006-vulnerabilities-in-content-name-pattern-commerce-shop-and-varnish-vhost-templates
- Release notes v3.3: https://doc.ibexa.co/en/latest/update_and_migration/from_3.3/update_from_3.3/#v3341
- Release notes v4.6: https://doc.ibexa.co/en/latest/update_and_migration/from_4.6/update_from_4.6/#v4614
- https://github.com/ezsystems/ezplatform-http-cache/security/advisories/GHSA-mgfg-7533-7jf6
- https://github.com/ibexa/http-cache/security/advisories/GHSA-fh7v-q458-7vmw
- https://www.breachattack.com/
What each source reports
GitHub AdvisoriesNo score
ibexa/post-install affected by Breach with Varnish VCL
Impact
This is not a vulnerability in the code per se, but included platform.sh Varnish VCL templates and Apache/Nginx vhost templates enable compression of API and JSON messages. This is a potential case of the BREACH vulnerability, which affects HTTP compression, where secrets can be extracted through carefully crafted requests. The fix disables compression in these templates. Please make sure to make the same change in your configuration files, see the release notes for specific instructions.
Patches
- See "Patched versions".
- v1.0: https://github.com/ibexa/post-install/commit/d91cc02623dd3263a99a94ace133c95e48909e5d
- v4.6: https://github.com/ibexa/post-install/commit/ae7c3c2081a862c75b90828f08bd74436ceb8fe8
Workarounds
Make sure HTTP compression is disabled for REST API requests and other communication that might contain secrets.
References
- Advisory: https://developers.ibexa.co/security-advisories/ibexa-sa-2024-006-vulnerabilities-in-content-name-pattern-commerce-shop-and-varnish-vhost-templates
- Release notes v3.3: https://doc.ibexa.co/en/latest/update_and_migration/from_3.3/update_from_3.3/#v3341
- Release notes v4.6: https://doc.ibexa.co/en/latest/update_and_migration/from_4.6/update_from_4.6/#v4614
- https://github.com/ezsystems/ezplatform-http-cache/security/advisories/GHSA-mgfg-7533-7jf6
- https://github.com/ibexa/http-cache/security/advisories/GHSA-fh7v-q458-7vmw
- https://www.breachattack.com/
- Record
GHSA-4h8f-c635-25p7- Updated
- 2026-11-02
OSVNo score
ibexa/post-install affected by Breach with Varnish VCL
Impact
This is not a vulnerability in the code per se, but included platform.sh Varnish VCL templates and Apache/Nginx vhost templates enable compression of API and JSON messages. This is a potential case of the BREACH vulnerability, which affects HTTP compression, where secrets can be extracted through carefully crafted requests. The fix disables compression in these templates. Please make sure to make the same change in your configuration files, see the release notes for specific instructions.
Patches
- See "Patched versions".
- v1.0: https://github.com/ibexa/post-install/commit/d91cc02623dd3263a99a94ace133c95e48909e5d
- v4.6: https://github.com/ibexa/post-install/commit/ae7c3c2081a862c75b90828f08bd74436ceb8fe8
Workarounds
Make sure HTTP compression is disabled for REST API requests and other communication that might contain secrets.
References
- Advisory: https://developers.ibexa.co/security-advisories/ibexa-sa-2024-006-vulnerabilities-in-content-name-pattern-commerce-shop-and-varnish-vhost-templates
- Release notes v3.3: https://doc.ibexa.co/en/latest/update_and_migration/from_3.3/update_from_3.3/#v3341
- Release notes v4.6: https://doc.ibexa.co/en/latest/update_and_migration/from_4.6/update_from_4.6/#v4614
- https://github.com/ezsystems/ezplatform-http-cache/security/advisories/GHSA-mgfg-7533-7jf6
- https://github.com/ibexa/http-cache/security/advisories/GHSA-fh7v-q458-7vmw
- https://www.breachattack.com/
- Record
GHSA-4h8f-c635-25p7- Updated
- 2026-11-02
Affected packages
| Package | Affected | Fixed |
|---|---|---|
ibexa/post-installPackagist | 1.0.0 up to 1.0.16 | 1.0.16 |
ibexa/post-installPackagist | 4.6.0 up to 4.6.14 | 4.6.14 |
ibexa/post-installPackagist | 1.0.0 up to 1.0.16, plus listed versions v1.0.0v1.0.1v1.0.10v1.0.11v1.0.12 Show 12 moreShow lessv1.0.13v1.0.14v1.0.15v1.0.2v1.0.3v1.0.4v1.0.4.1v1.0.5v1.0.6v1.0.7v1.0.8v1.0.9 | 1.0.16 |
ibexa/post-installPackagist | 4.6.0 up to 4.6.14, plus listed versions v4.6.0v4.6.1v4.6.10v4.6.11v4.6.12 Show 9 moreShow lessv4.6.13v4.6.2v4.6.3v4.6.4v4.6.5v4.6.6v4.6.7v4.6.8v4.6.9 | 4.6.14 |
History
| Recorded | Changed | Sources |
|---|---|---|
| first indexed | GitHub Advisories, OSV |
Dates are when Every CVE recorded each change. Upstream dates may differ.
In short
GHSA-4h8f-c635-25p7 is a vulnerability with no CVSS score yet in ibexa/post-install, published December 2, 2024. No source lists public exploit code. Fixed in ibexa/post-install 1.0.16.
References
github.com/ezsystems/ezplatform-http-cache/security/advisories/GHSA-mgfg-7533-7jf6
developers.ibexa.co/security-advisories/ibexa-sa-2024-006-vulnerabilities-in-content-name-pattern-commerce-shop-and-varnish-vhost-templates
doc.ibexa.co/en/latest/update_and_migration/from_3.3/update_from_3.3