CVE Explorer

CVE-2026-45369

python-utcp is the python implementation of UTCP. Prior to 1.1.3, the _substitute_utcp_args method in cli_communication_protocol.py inserts user-controlled tool_args values directly into shell command strings without any sanitization or escaping. These commands are then executed via /bin/bash -c (Unix) or powershell.exe -Command (Windows), allowing an attacker to inject arbitrary shell commands. This vulnerability is fixed in 1.1.3.

Lifecycle PUBLISHED1 preserved revisionFact urn:baitaphish:canonical-cve-fact-revision:v2:de18d891c8703001267c7f5780940e0402a47d3a2421ae3187e6c8b3a3ecacca

Known exploited

Not asserted

Disputed

Stale source

Conflicts

Affected products and versions

1 source assertion

{"product":"python-utcp","vendor":"universal-tool-calling-protocol","versions":[{"status":"affected","version":"< 1.1.2"}]}

cve_program_cvelist_v5affected
urn:baitaphish:normalized-source-record:v2:22f8801a722f4df734b15b3992420c5901d2e32d1b0453c2f921f749cc02b487 · sha256:4ce71d847649c2a0… · /containers/cna/affected/0

Provider-owned CVSS observations

1 source assertion

{"metric":{"attackComplexity":"HIGH","attackVector":"NETWORK","availabilityImpact":"HIGH","baseScore":8.3,"baseSeverity":"HIGH","confidentialityImpact":"HIGH","integrityImpact":"HIGH","privilegesRequired":"NONE","scope":"CHANGED","userInteraction":"REQUIRED","vectorString":"CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:C/C:H/I:H/A:H","version":"3.1"},"metric_type":"cvssV3_1"}

cve_program_cvelist_v5cvss
urn:baitaphish:normalized-source-record:v2:22f8801a722f4df734b15b3992420c5901d2e32d1b0453c2f921f749cc02b487 · sha256:4ce71d847649c2a0… · /containers/cna/metrics/0/cvssV3_1

CWE assertions

1 source assertion

{"cweId":"CWE-78","description":"CWE-78: Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection')","lang":"en","type":"CWE"}

cve_program_cvelist_v5cwe
urn:baitaphish:normalized-source-record:v2:22f8801a722f4df734b15b3992420c5901d2e32d1b0453c2f921f749cc02b487 · sha256:4ce71d847649c2a0… · /containers/cna/problemTypes/0/descriptions/0

Source references

2 source assertions

{"name":"https://github.com/universal-tool-calling-protocol/python-utcp/security/advisories/GHSA-33p6-5jxp-p3x4","tags":["x_refsource_CONFIRM"],"url":"https://github.com/universal-tool-calling-protocol/python-utcp/security/advisories/GHSA-33p6-5jxp-p3x4"}

cve_program_cvelist_v5reference
urn:baitaphish:normalized-source-record:v2:22f8801a722f4df734b15b3992420c5901d2e32d1b0453c2f921f749cc02b487 · sha256:4ce71d847649c2a0… · /containers/cna/references/0

{"tags":["exploit"],"url":"https://github.com/universal-tool-calling-protocol/python-utcp/security/advisories/GHSA-33p6-5jxp-p3x4"}

cve_program_cvelist_v5reference
urn:baitaphish:normalized-source-record:v2:22f8801a722f4df734b15b3992420c5901d2e32d1b0453c2f921f749cc02b487 · sha256:4ce71d847649c2a0… · /containers/adp/0/references/0

Attribution and limitations

CVE Program CVEList V5: Reproduce the MITRE copyright designation and CVE license in copies. Source →

Provider severity values are preserved separately. Baitaphish does not convert them into a risk rating, infer affected products, or treat EPSS as observed exploitation.

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