CVE-2026-107727Strawberry legacy graphql-ws retains naturally completed subscription slots
Updated under an hour ago ()
Does this affect you?
It affects strawberry-graphql strawberry. Add what you run to find out whether that includes you.
No exploitation reported and no EPSS estimate yet.
Do this next
Free account, 1 product
Strawberry GraphQL is a library for creating GraphQL APIs. From 0.312.3 until 0.327.2, the legacy graphql-ws subscription handler in strawberry/subscriptions/protocols/graphql_ws/handlers.py does not remove naturally completed operations from self.tasks and self.subscriptions. When max_subscriptions_per_connection is configured, a client on a persistent WebSocket connection can use distinct operation IDs for one-shot subscriptions to fill the connection's configured slots even after those subscriptions send complete, causing later legitimate operations on that connection to be rejected with Subscription limit reached. The modern graphql-transport-ws protocol and deployments without the configured per-connection cap are not affected. This issue is fixed in version 0.327.2.
- CVSS
- 3.7 LOW (v3.1, CNA)CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:L
- Weakness (CWE)
- CWE-400
- Known exploited
- Not in CISA's KEV catalog
- EPSS (exploitation in the next 30 days)
- Not loaded for this CVE
- Assigned by
- GitHub_M
- NVD analysis
- Awaiting Analysis
- Record last updated
- Oct 13, 2026
- First seen by InfoSec Signals
- Oct 9, 2026
Affected products
strawberry-graphql strawberry strawberry_graphql:strawberry (from the name) | from 0.312.3, < 0.327.2 | CNA record |
References
- https://github.com/strawberry-graphql/strawberry/security/advisories/GHSA-m952-2w3f-6r8hx-refsource-confirm
- https://github.com/strawberry-graphql/strawberry/pull/4610x-refsource-misc
- https://github.com/strawberry-graphql/strawberry/commit/24c5e46d57f7ad4f77e6e01fb8ae482dd1c0ff92x-refsource-misc
- https://github.com/strawberry-graphql/strawberry/releases/tag/0.327.2x-refsource-misc
The CVE record on cve.org NVD's entry
The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.