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Not in CISA KEV
HIGH severity

silverstripe/framework has possible denial of service attack vector when flushingGHSA-cwgq-83w5-8jfq

HIGHFix: silverstripe/silverstripe-framework@0610f76

GHSA-cwgq-83w5-8jfq is a high-severity (CVSS 7.5) vulnerability in silverstripe/framework. A fix is available for silverstripe/framework — see the affected versions and patch details below.

Published
Updated
Affected
3 pkgs
Patched
3 / 3
Exploits
None indexed
Exploitation data as of Dec 3, 2024 · OSV.dev, FIRST.org (EPSS)

Real-World Exposure

3 pkgs affected
🐘silverstripe/framework🐘silverstripe/framework🐘silverstripe/framework

Real-time download stats are indexed for npm and PyPI packages. This vulnerability affects Packagist packages — download data is not available via public APIs for these ecosystems.

Description

A possible denial of service attack vector has been identified in the dev/build system controller.

dev/build now has its own URL token, similar to flushtoken, to ensure users are authenticated when running dev/build outside of dev environments.

Affected Packages

3 total 3 fixed
EcosystemPackageVulnerable rangeFix
🐘Packagistsilverstripe/framework≥ 4.0.0-rc1&&< 4.0.54.0.5composer require silverstripe/framework:^4.0.5
🐘Packagistsilverstripe/framework≥ 4.1.0-rc1&&< 4.1.34.1.3composer require silverstripe/framework:^4.1.3
🐘Packagistsilverstripe/framework≥ 4.2.0-rc1&&< 4.2.24.2.2composer require silverstripe/framework:^4.2.2

Detection & mitigation playbook

Open-source dependency

  1. Detect

    Scan your dependency tree (package-lock.json, pnpm-lock.yaml, requirements.txt, go.sum, etc.) for silverstripe/framework, including transitive dependencies — a direct dependency you never call can still pull in a vulnerable version.

  2. Fix

    Update silverstripe/framework to 4.0.5 or later, then make sure no transitive (indirect) dependency still pins the vulnerable range — O3 confirms GHSA-cwgq-83w5-8jfq is resolved across your whole dependency graph.

  3. Workarounds

    Cap what an attacker can consume: apply request size, rate and timeout limits in front of the affected component, and run it with memory and CPU limits so exhaustion degrades one worker rather than the whole service.

Frequently Asked Questions

A possible denial of service attack vector has been identified in the dev/build system controller. dev/build now has its own URL token, similar to flushtoken, to ensure users are authenticated when running dev/build outside of dev environments.
O3 Security · Impact-Aware SCA

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GHSA-cwgq-83w5-8jfq: framework DoS — Fixed in 4.0.5