{"id":"CVE-2025-60455","aliases":["GHSA-7xcv-9j6c-2fmc","PYSEC-2025-253","PYSEC-2026-427"],"title":"Modular Max Serve has Unsafe Deserialization vulnerability","summary":"Modular Max Serve has Unsafe Deserialization vulnerability","severity":"critical","vendor":"modular","product":"modular","ecosystem":"pip","affected":["modular < 25.6.0"],"patched":["modular 25.6.0"],"published":"2025-11-18","updated":"2026-07-13","source":"OSV","sourceUrl":"https://osv.dev/vulnerability/GHSA-7xcv-9j6c-2fmc","references":[{"url":"https://nvd.nist.gov/vuln/detail/CVE-2025-60455"},{"url":"https://github.com/modular/modular/issues/4795"},{"url":"https://github.com/modular/modular/commit/10620059fb5c47fb0c30e5d21a8ff3b8d622fba4"},{"url":"https://github.com/modular/modular/commit/b20e749fa892dbe772e890a268002f732164d9f5"},{"url":"https://github.com/modular/modular/commit/ee9c4ab02345dd30bed8b79771b6909ff1b930a1"},{"url":"https://github.com/modular/modular"},{"url":"https://github.com/modular/modular/blame/main/max/serve/kvcache_agent/kvcache_agent.py#L220"},{"url":"https://www.oligo.security/blog/shadowmq-how-code-reuse-spread-critical-vulnerabilities-across-the-ai-ecosystem"}],"tags":["osv","pip"],"epss":0.0031,"epssPercentile":0.24088,"ingestedAt":"2026-07-13T18:57:54.766Z","slug":"CVE-2025-60455","body":"## Overview\n\nUnsafe 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.\n\n## Affected packages\n\n- `modular < 25.6.0`\n\n## Remediation\n\nUpgrade to a patched release:\n\n- `modular 25.6.0`","depth":"midnight","depthScore":52,"depthScoreParts":{"impact":52.3,"likelihood":0.1,"exploitation":0,"ransomware":0},"changes":[]}