This release includes 2 security fixes for security teams reviewing exposed deployments.
Topics
ReleasePort's take
Moderate signalThe dotnet‑1.76.0 release patches the high‑severity NU1903 vulnerability (GHSA-pggp-6c3x-2xmx). Update Kiota packages and bump Snappier to 1.3.1 immediately.
Why it matters: Patch now: the NU1903 high‑severity vulnerability (CVSS unspecified) is fixed in dotnet‑1.76.0; update dependent packages without delay.
Summary
AI summaryGHSA-pggp-6c3x-2xmx and NU1903 high‑severity vulnerability fixed.
Changes in this release
| Type | Severity | Summary | CVE |
|---|---|---|---|
| Security | Medium |
Harden CloudDrivePlugin defaults and add path validation Harden CloudDrivePlugin defaults and add path validation Source: llm_adapter@2026-05-21 Confidence: high |
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| Security | Medium |
Harden gRPC plugin address handling Harden gRPC plugin address handling Source: llm_adapter@2026-05-21 Confidence: high |
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| Feature | Medium |
Support ImageContent in tool/function results Support ImageContent in tool/function results Source: llm_adapter@2026-05-21 Confidence: high |
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| Feature | Medium |
Add deny-by-default AllowedUploadDirectories to CloudDrivePlugin Add deny-by-default AllowedUploadDirectories to CloudDrivePlugin Source: llm_adapter@2026-05-21 Confidence: high |
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| Feature | Medium |
Add ExtraBody to OpenAIPromptExecutionSettings Add ExtraBody to OpenAIPromptExecutionSettings Source: llm_adapter@2026-05-21 Confidence: high |
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| Dependency | Medium |
Update Kiota packages to fix NU1903 vulnerability Update Kiota packages to fix NU1903 vulnerability Source: llm_adapter@2026-05-21 Confidence: low |
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| Dependency | Medium |
Bump Snappier to 1.3.1 to fix NU1903 high-severity vulnerability (GHSA-pggp-6c3x-2xmx) Bump Snappier to 1.3.1 to fix NU1903 high-severity vulnerability (GHSA-pggp-6c3x-2xmx) Source: llm_adapter@2026-05-21 Confidence: low |
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| Bugfix | Medium |
Improve input validation in OpenAPI plugin Improve input validation in OpenAPI plugin Source: llm_adapter@2026-05-21 Confidence: high |
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| Bugfix | Medium |
Fix DocumentPlugin path validation order Fix DocumentPlugin path validation order Source: llm_adapter@2026-05-21 Confidence: high |
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| Bugfix | Medium |
Fall back to ToString() when logging function results with unregistered types Fall back to ToString() when logging function results with unregistered types Source: llm_adapter@2026-05-21 Confidence: high |
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| Bugfix | Medium |
Fix VertexAI global endpoint URI construction Fix VertexAI global endpoint URI construction Source: llm_adapter@2026-05-21 Confidence: high |
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Full changelog
Changes:
- f2b3c931d1bc43b5630eb16aea24a4fe93d56699 .Net: Version bump 1.76.0 (#13972)
- 3dd139b2bd4000dd8efc19edd6d3127e17916550 .Net: Harden CloudDrivePlugin defaults and add path validation (#13958)
- 446c2eff94bcf4539e1528db692352bbbb3628a5 .Net: Improve input validation in OpenAPI plugin (#13962)
- b7ae840d65c244b8f72e55ef1a5be8bdb4f31ac7 .Net: feat(connectors): Support ImageContent in tool/function results (#13431) [ #13430, #13419 ]
- 52d4e5ce857bcdc770eb9ea415e2092aae3fa258 .Net: Harden gRPC plugin address handling (#13961)
- 73d3c59902914f79d3068a54aaa851d275c91de8 Update Kiota packages to fix NU1903 vulnerability (#13966)
- fb10d92d8c9c21d1a0122f53781bd1bee5acd25f .Net: Bump Snappier to 1.3.1 to fix NU1903 high-severity vulnerability (GHSA-pggp-6c3x-2xmx) (#13960) [ #13431 ]
- 1a5065e5cf25536ffe94ff1fba7713f300c7c9b7 .Net: Fix DocumentPlugin path validation order (#13956)
- 2a719ca3182f547203f54257f69c47a175fbb3fd .Net: Add deny-by-default AllowedUploadDirectories to CloudDrivePlugin (#13953)
- 006a5d9a9b3eb4ed41f63beb6341bc44e724d9db .Net: fix: fall back to ToString() when logging function results with unregistered types (#13884) [ #13681 ]
Security Fixes
- NU1903 high‑severity vulnerability fixed by updating Kiota packages (#13966)
- GHSA-pggp-6c3x-2xmx (high severity) fixed by bumping Snappier to 1.3.1 (#13960)
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Earlier breaking changes
- vpython-1.43.0 Updates OpenAPI document parsing options in Python.
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