PT-2026-89477 · Git+1 · Knowns

CVE-2026-88899

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Published

2026-09-10

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Updated

2026-09-11

CVSS v3.1

9.8

Critical

VectorAV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
knowns versions before 0.31.0 fail to properly validate the x-opencode-directory request header in the /api/opencode proxy endpoint. Remote attackers can supply arbitrary directory paths to execute file operations outside the project root on the host system.

Exploit

Fix

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Weakness Enumeration

Related Identifiers

CVE-2026-88899
GHSA-9H2Q-R9FH-F98W

Affected Products

Knowns