GHSA-m952-2w3f-6r8h: strawberry-graphql (CVE-2026-107727)

Package	Ecosystem	Affected	Fixed in
strawberry-graphql	PyPI	>=0.312.3, <0.327.2	0.327.2

Machine-written summary

Summary written by Claude Haiku from the source advisory. Not reviewed by a person.

Strawberry (PyPI package strawberry-graphql) versions >=0.312.3 and <0.327.2 are affected; upgrade to 0.327.2. The legacy graphql-ws subscription handler keeps completed one-shot subscriptions counted against the per-connection limit set by max_subscriptions_per_connection. A client holding a persistent WebSocket connection can fill those slots with completed operations, so later legitimate subscriptions on that connection get "Subscription limit reached". This requires the legacy graphql-ws protocol and that limit to be configured, and the impact is availability on that connection.

Written 1 Nov 2026.

Not analysed yet

We haven’t published our analysis of this Advisory yet. Once a person has reviewed it, this page will say what’s vulnerable, what has to be true for your app to be affected, and how to check.

Severity and exploitation

Score	Rating	CVSS	Vector	Source
3.7	Low	3.1	CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:L	CNA (GitHub_M)

CISA KEV Not listed.
EPSS 0.0043, the 37th percentile, on 7 Nov 2026: FIRST’s estimate of the chance of exploitation in the next 30 days.

Timeline

31 Oct 2026, 14:08 UTC First seen by agentprime
31 Oct 2026, 14:08 UTC Confirmed by OSV

Sources

Facts on this page come from the GitHub Advisory Database (CC-BY 4.0), OSV and the other sources listed, as published. We don’t reproduce full advisory descriptions, which can contain exploit code.