GHSA-4fvr-rgm6-gqmc
Fix: aio-libs/aiohttp@dfdfa9dGHSA-4fvr-rgm6-gqmc is a CWE-770 vulnerability in aiohttp. O3 Security confirms whether GHSA-4fvr-rgm6-gqmc is actually reachable in your code before you act, and blocks exploitation at runtime until you patch.
aiohttp: HTTP/1 Pipelined Requests Queue Without Limit
Real-World Exposure
aiohttpReal-time download stats are indexed for npm and PyPI packages. This vulnerability affects PyPI packages — download data is not available via public APIs for these ecosystems.
Description
Summary
No limit was present on the number of pipelined requests that could be queued.
Impact
An attacker may be able to use pipelined requests to use excessive amounts of memory, potentially leading to DoS.
Patch: https://github.com/aio-libs/aiohttp/commit/dfdfa9d5aad5d21f91c79fb2ceeba0f8046cb6cf
Affected Packages
| Ecosystem | Package | Vulnerable range | Fix |
|---|---|---|---|
| 🐍PyPI | aiohttp | all versions | 3.14.1 |
Detection & mitigation playbook
Open-source dependencyDetect
Scan your dependency tree (package-lock.json, pnpm-lock.yaml, requirements.txt, go.sum, etc.) for aiohttp. O3's reachability analysis confirms whether the vulnerable code path is actually invoked in your application, so you act on real exposure instead of every transitive match.
Fix
Update aiohttp to 3.14.1 or later, then make sure no transitive (indirect) dependency still pins the vulnerable range — O3 confirms GHSA-4fvr-rgm6-gqmc is resolved across your whole dependency graph.
Workarounds
If you can't upgrade right away: gate or disable the affected feature, validate untrusted input at the boundary, and avoid passing attacker-controlled data into the vulnerable path. O3's runtime protection blocks exploitation in production as an interim safeguard until the upgrade lands.
How O3 protects you
O3 pinpoints whether GHSA-4fvr-rgm6-gqmc is reachable in your code and exactly where to fix it, then blocks exploitation in production at runtime until the patched version is deployed.
Tailored to GHSA-4fvr-rgm6-gqmc. Runtime protection reduces exposure until a permanent patch is applied and verified — it complements patching, it doesn't replace it.
Frequently Asked Questions
Is GHSA-4fvr-rgm6-gqmc in your dependencies?
O3 detects GHSA-4fvr-rgm6-gqmc across PyPI dependencies and uses function-level reachability to confirm whether the vulnerable code path is actually reachable — not just present. No false positives.