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01 Record

CVE-2026-107289

Pydantic AI: SSRF cloud-metadata blocklist bypass via IPv6 zone identifier (incomplete fix for CVE-2026-46678 and CVE-2026-48782)

MediumPUBLISHEDCNA: GitHub_M
CNA base score6.8 CVSS v3.xCVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:H/I:N/A:N
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02 Description

Pydantic AI: SSRF cloud-metadata blocklist bypass via IPv6 zone identifier (incomplete fix for CVE-2026-46678 and CVE-2026-48782)

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.
  • AutomatablenoAt least one step from reconnaissance to exploitation cannot be reliably automated.
  • Technical ImpactpartialSuccessful exploitation gives limited control of the vulnerable component.
CISA publishes the decision points, not a final SSVC decision. The decision also depends on mission and well-being impact, which is a property of your deployment rather than of the vulnerability.
EPSS probability
0.39% probability of exploitation activity in the next 30 days.
EPSS percentile
Equal to or higher than the score of 32.8% of scored records. A rank, not a probability.
NVD base score
6.8 (CVSS v3.x), scored by the NVD independently of the CNA.
NVD CVSS vector
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:H/I:N/A:N
NVD analysis status
Analyzed. NVD last modified this record on 2026-10-13.
Red Hat severity
Low. 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 15:20Z20 DAYS AGO
Last updated
2026-10-08 16:07Z20 DAYS AGO
Reserved
2026-10-07
Assigning CNA
GitHub_M
Record state
PUBLISHED
Severity
Medium (CVSS 6.8)
CNA CVSS vector
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:H/I:N/A:N
Weaknesses
  • CWE-918Server-Side Request Forgery (SSRF)Base
  • CWE-1289Improper Validation of Unsafe Equivalence in InputBase
Data version
5.2
Document digest
d41d15f7a9040506ba40705aa8f5a58f16391cbd011b125b51e11a2913d85250

05 Affected products

VendorProductVersionsPlatforms
pydanticpydantic-ai>= 1.56.0, < 1.107.6, >= 2.0.0b1, < 2.44.0—
pydanticpydantic-ai-slim>= 1.56.0, < 1.107.6, >= 2.0.0b1, < 2.44.0—

06 References