PYSEC-2026-427
See a problem?- Import Source
- https://github.com/pypa/advisory-database/blob/main/vulns/modular/PYSEC-2026-427.yaml
- JSON Data
- https://api.osv.dev/v1/vulns/PYSEC-2026-427
- Aliases
- Published
- 2026-06-29T11:50:36.347186Z
- Modified
- 2026-07-01T20:22:58.530561Z
- Severity
-
- 9.3 (Critical) CVSS_V4 - CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N CVSS Calculator
- Summary
- Modular Max Serve has Unsafe Deserialization vulnerability
- Details
-
Unsafe Deserialization vulnerability in Modular Max Serve before 25.6, specifically when the "--experimental-enable-kvcache-agent" feature is used allowing attackers to execute arbitrary code.
- References
-
- https://nvd.nist.gov/vuln/detail/CVE-2025-60455
- https://github.com/modular/modular/issues/4795
- https://github.com/modular/modular/commit/10620059fb5c47fb0c30e5d21a8ff3b8d622fba4
- https://github.com/modular/modular/commit/b20e749fa892dbe772e890a268002f732164d9f5
- https://github.com/modular/modular/commit/ee9c4ab02345dd30bed8b79771b6909ff1b930a1
- https://github.com/modular/modular
- https://github.com/modular/modular/blame/main/max/serve/kvcache_agent/kvcache_agent.py#L220
- https://www.oligo.security/blog/shadowmq-how-code-reuse-spread-critical-vulnerabilities-across-the-ai-ecosystem
- https://pypi.org/project/modular
- https://github.com/advisories/GHSA-7xcv-9j6c-2fmc
Affected packages
PyPI / modular
Package
- Name
- modular
- View open source insights on deps.dev
- Purl
- pkg:pypi/modular