01 Record
CVE-2026-107286
Pydantic AI: Concurrency-limited models can keep their slot when a streamed request ends early
HighPUBLISHEDCNA: GitHub_M
CNA base score7.5 CVSS v3.xCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
02 Description
Pydantic AI: Concurrency-limited models can keep their slot when a streamed request ends early
03 Exploitation and scoring
- Exploitation
- Assessed, none found. CISA's assessment recorded neither public exploit code nor evidence of exploitation when it was made.
- SSVC decision
- ExploitationnoneCISA recorded no public exploit code and no evidence of exploitation.
- AutomatableyesAn attacker can reliably automate reconnaissance through exploitation, so this scales.
- Technical ImpactpartialSuccessful exploitation gives limited control of the vulnerable component.
- EPSS probability
- 0.45% probability of exploitation activity in the next 30 days.
- EPSS percentile
- Equal to or higher than the score of 38.8% of scored records. A rank, not a probability.
- NVD base score
- 7.5 (CVSS v3.x), scored by the NVD independently of the CNA.
- NVD CVSS vector
- CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
- NVD analysis status
- Analyzed. NVD last modified this record on 2026-10-13.
- Red Hat severity
- Important. Red Hat's rating for its own products, not a CVSS rating.
Exploit-prediction scores from FIRST. Independent scoring and analysis status from the NVD. Vendor severity from Red Hat. Exploitation assessment and catalog membership from CISA.
04 Metadata
- Published
- 2026-10-08 15:12Z20 DAYS AGO
- Last updated
- 2026-10-08 17:27Z20 DAYS AGO
- Reserved
- 2026-10-07
- Assigning CNA
- GitHub_M
- Record state
- PUBLISHED
- Severity
- High (CVSS 7.5)
- CNA CVSS vector
- CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
- Weaknesses
- CWE-772Missing Release of Resource after Effective LifetimeBase
- Data version
- 5.2
- Document digest
- 2495cbe781ee547f2e5e6e2d3d81f8fcabe24b044c282412901d3dc4867c51be
05 Affected products
VendorProductVersionsPlatforms
06 References
- github.comhttps://github.com/pydantic/pydantic-ai/security/advisories/GHSA-6fqq-452j-qhrp
- github.comhttps://github.com/pydantic/pydantic-ai/pull/9478
- github.comhttps://github.com/pydantic/pydantic-ai/commit/453f19feeb7ab1d789f9393b1723c6a73b3d77b2
- github.comhttps://github.com/pydantic/pydantic-ai/releases/tag/v2.53.0