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TI-2026-65093 Aliases CVE-2026-101060GHSA-967h-fcmq-3m25

python-utcp before 1.1.4 SSRF via unvalidated HTTP redirects

Priority HIGH 70CWE-918Published · Updated

Key facts

Attack vector
Network
Privileges required
None
User interaction
Passive
Attack complexity
Low
Attack requirements
None
Impact type
—
Confidentiality · integrity · availability
High · Low · None
Fix status
Fixed

Attack profile from CVSS 4.0 · CNA. Fix status from CNA.

Summary

python-utcp versions before 1.1.4 contain a server-side request forgery vulnerability in HttpCommunicationProtocol.call_tool that validates the initial tool URL but follows HTTP redirects without re-validating the target. Attackers controlling a tool endpoint can return a 302 redirect to internal services, allowing the UTCP client to reach cloud metadata endpoints or internal HTTP services and return their response bodies to the caller.

Why it matters now

Exploitation Proof of concept CISA SSVC · not in CISA KEV
EPSS 0.00225 13th percentileScored 2026-11-07
Fix Fixed python-utcp (universal-tool-calling-protocol): 1.1.4

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation
Poc
Automatable
No
Technical impact
Partial

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

VendorProductAffected versionsFixed inStatusSource
universal-tool-calling-protocolpython-utcpbefore 1.1.41.1.4Patch availableCNA

Remediation

  • Fix · CNA python-utcp (universal-tool-calling-protocol) Fixed in 1.1.4

Fixed in the same release

Records fixed by the same vendor advisory or release, as the CNA lists them.

  • Release ·

    universal-tool-calling-protocol python-utcp 1.1.4

    2 records Highest priority Priority HIGH 1 HIGH, 1 MEDIUM

    Other records, highest priority first

    • TI-2026-65092 utcp-http before 1.1.4 OAuth2 tokenUrl Trust Boundary BypassPriority MEDIUM 64
    Show all 2 records →

Timeline

  1. 2026-10-02 Threatist record created from CVE-2026-101060
  2. 2026-10-03 Alias added: GHSA-967h-fcmq-3m25

References

Advisory 1

  • TI-2026-33160 python-utcp: Command Injection via Unsanitized Argument Substitution in CLI Communication Protocol CVSS 3.1HIGH 8.3
  • TI-2026-65092 utcp-http before 1.1.4 OAuth2 tokenUrl Trust Boundary Bypass CVSS 4.0HIGH 7.1
  • TI-2026-10502 universal-tool-calling-protocol python-utcp utcp-gql/utcp-websocket server-side request forgery CVSS 4.0MEDIUM 5.3
  • TI-2026-65094 utcp-gql and utcp-websocket before 1.1.1 SSRF via URL validation bypass CVSS 4.0LOW 2.3
  • TI-2026-33161 python-utcp: Full Process Environment Exposed to CLI Subprocess - Secrets Leakage via Command Injection CVSS 3.1HIGH 7.7
  • TI-2026-65091 python-utcp before 1.1.12 SSRF via Remote HTTP Manual CVSS 4.0HIGH 7.1
See all 9 →

Sources

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