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TI-2026-44773 Aliases CVE-2026-62663

Banks: Arbitrary File Read via Path Traversal in Media Filters (image/audio/video/document)

Priority HIGH 72CWE-22Published · Updated

Key facts

Attack vector
Network
Privileges required
None
User interaction
None
Attack complexity
Low
Impact type
Information disclosure
Confidentiality · integrity · availability
High · None · None
Fix status
Partial Red Hat: 3 without a fix

Attack profile from CVSS 3.1 · CNA. Fix status from CNA and Red Hat. Impact type from CWE-22 and the CVSS impact.

Summary

Banks generates meaningful LLM prompts using a simple template language. In versions prior to 2.4.4, all four media filters (image, audio, video, document) in banks accept untrusted user input as file paths via Path(value) and pass them directly to open(file_path, "rb") without any path sanitization, canonicalization, or directory restriction. An attacker who controls template variables passed to a banks Prompt can use path traversal (../) to read arbitrary files accessible to the Python process—including .env files, SSH keys, cloud credentials, source code, /etc/passwd, and /etc/shadow—with the content returned base64-encoded in the rendered prompt output, making exfiltration trivial. This is particularly dangerous for applications that use banks to process user-provided template variables before sending prompts to an LLM. This issue has been fixed in version 2.4.4.

Why it matters now

Exploitation Proof of concept CISA SSVC · not in CISA KEV
EPSS 0.00404 34th percentileScored 2026-11-07
Fix Partial banks (masci): 2.4.4Red Hat: 3 without a fix

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation
Poc
Automatable
Yes
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
mascibanksbefore 2.4.42.4.4Patch availableCNA
  • banks Vendormasci Affected before 2.4.4 Fixed in 2.4.4 Patch available CNA

Remediation

  • Fix · CNA banks (masci) Fixed in 2.4.4

Vendor assessments

Red Hat

Red Hat rating: Important. Red Hat's page for this CVE →

ProductStatusPlan or fix
Exploit IntelligenceAffectedNo fix yet
Lightspeed CoreAffectedNo fix yet
Red Hat Ansible Automation Platform 2AffectedNo fix planned: Will not fix
Not affected: 1 product
  • OpenShift Lightspeed

Timeline

  1. 2026-10-02 Threatist record created from CVE-2026-62663

References

Other 1

  • TI-2026-69696 Banks parses untrusted prompt input as privileged chat messages CVSS 3.1MEDIUM 6.5
  • TI-2026-44099 Banks: Unsafe importlib.import_module of attacker-controlled Tool.import_path in CompletionExtension allows RCE CVSS 3.1HIGH 7.5
  • TI-2026-32188 Banks: Critical Remote Code Execution (RCE) via Jinja2 SSTI CVSS 3.1HIGH 7.5
  • TI-2026-50100 Banks: Path traversal in `DirectoryPromptRegistry.set()` allows arbitrary file write outside the registry root CVSS 4.0MEDIUM 6.0
  • TI-2026-69682 Symlink traversal in Banks DirectoryPromptRegistry CVSS 4.0HIGH 7.3

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences