Versions 1.82.7 and 1.82.8 of litellm were published on March 24, 2026
and contained malicious code that exfiltrated credentials (SSH keys,
cloud credentials, .env files, API keys) to an attacker-controlled domain.
Pin the dependency to >=1.70.0,<1.82.7 in both pyproject.toml and
requirements.txt as a stopgap until litellm can be replaced with direct
provider SDK calls.
See: https://github.com/HKUDS/OpenSpace/issues/31
Ref: PYSEC-2026-2, BerriAI/litellm#24521
