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fix(deps): bump mcp to 2.3.0 and allow pillow 13 - #1174
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mcp 2.0.0 carries CVE-2026-59951, fixed in 2.2.0. The exact pin keeps downstream installs from moving past it. Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
pillow 12.3.0 carries CVE-2026-112403 (critical) and six high CVEs in its JPEG, GIF, TIFF and PDF code, all fixed in 13.0.0. The <13 cap kept downstream installs on 12.x. The lock stays on 12.3.0 because deepagents[video] still caps pillow below 13. Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
robert-ursu
marked this pull request as ready for review
October 22, 2026 13:11
The MCP samples and test cases pin mcp themselves, so they have to follow the library's pin. litellm 1.89.3 has GHSA-3cv6-jpf6-8222, fixed in 1.89.7 on the same minor line, and CI's package proxy now refuses to download 1.89.3. Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
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🟡 Changes recommended
Two editable-root integration testcases still pin MCP 2.0.0, conflicting with the SDK’s new exact requirement and preventing dependency resolution.
1 open issue
What changed in this PR
Updates the SDK’s dependencies to use MCP 2.3.0 and permit Pillow 13, addressing constraints that prevented downstream security upgrades.
Changes:
- Bumps the package version to 0.18.50.
- Updates MCP and MCP Types to 2.3.0 in the lockfile.
- Widens Pillow’s upper bound to
<14.0.0, while retaining locked version 12.3.0.
| File | Description |
|---|---|
uv.lock |
Updates MCP packages, SDK version, and dependency metadata. |
pyproject.toml |
Bumps the SDK version and adjusts MCP and Pillow requirements. |
Review effort: Balanced
| "jsonpath-ng>=1.7.0", | ||
| "mcp==2.0.0", | ||
| "pillow>=12.3.0, <13.0.0", | ||
| "mcp==2.3.0", |
Their mcp pin moved to 2.3.0, which only uipath-langchain 0.18.50 and later allow, so a lower floor would resolve to an unsatisfiable set. Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
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radu-mocanu
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Oct 22, 2026
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Summary
Bumps the exact
mcppin from 2.0.0 to 2.3.0, and the package version to 0.18.50.mcp 2.0.0 carries CVE-2026-59951 (MEDIUM), fixed in 2.2.0. Because the pin is exact, nothing installed alongside uipath-langchain can move past it; a constraint file in a downstream install fails to resolve instead. The lockfile changes only mcp and mcp-types (2.0.0 → 2.3.0) and this package's own version.
It also widens the pillow range to
>=12.3.0, <14.0.0. pillow 12.3.0 carries CVE-2026-112403 (CRITICAL) and six HIGH CVEs in its JPEG, GIF, TIFF and PDF code, all fixed in 13.0.0, and the<13cap kept every downstream install on 12.x. This repository's lock stays on 12.3.0, becausedeepagents[video]still caps pillow below 13; installs without that extra can now move to 13.Test plan
tests/agent/tools/test_mcp: 136 passed, including the tests against real MCP servers over HTTPtest_uipath_cli_tool.py, which start theuipCLI as a subprocess, unrelated to mcptests/agent/multimodal52 passed, and a two-page TIFF converts to PNG pages the waydownload_tiff_pagesdoes it🤖 Generated with Claude Code