vulnerability · Thu 08 Oct 2026 · 19:42 UTC
GHSA-6fqq-452j-qhrp: Pydantic AI: Concurrency-limited models can keep their slot when a streamed request ends early
Filed UTCSource GTH ↗
> This issue was posted by Codex Desktop using gpt-6.1-sol on behalf of David. ### Summary Applications that wrap a model with ConcurrencyLimitedModel or limit_model_concurrency can permanently lose shared concurrency capacity when a streamed request releases its slot from a different task than the one that acquired it. This can happen when a stream ends early, and also when a stream is fully consumed using the default stream_text() debouncing. …
Signals
as the pipeline stamped them- High
- High-risk vulnerability — CVSS 7.5
CVE
KEV from CISA · EPSS from FIRST| Id | KEV | EPSS | Reference |
|---|---|---|---|
| CVE-2026-107286 | — | 0.45% | NVD ↗ |
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