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CVE-2023-36188: An issue in langchain v.0.0.64 allows a remote attacker to execute arbitrary code via the PALChain paramete...

An issue in langchain v.0.0.64 allows a remote attacker to execute arbitrary code via the PALChain parameter in the Python exec method.

UnknownCVSS not scoredNot KEV-listedUpdated
Glexia's TakeAutomated analysishigh

Security readout for executives and security teams

Plain-English summary

This CVE describes a LangChain v0.0.64 issue where PALChain could allow remote arbitrary code execution through Python exec handling. In business terms, an exposed application using this component with untrusted input could let an attacker run code in the application environment. The source bundle does not provide CVSS, CPEs, or a confirmed fixed version.

Executive priority

Prioritize review where LangChain-powered applications are internet-facing or process external user prompts. Treat confirmed exposure as urgent because the stated impact is arbitrary code execution, but avoid broad conclusions until PALChain usage and version data are verified.

Technical view

The CVE record states that langchain v0.0.64 is affected and that the issue involves the PALChain parameter reaching Python exec, enabling arbitrary code execution. The bundled evidence includes a GitHub issue and pull request, but the provided bundle does not include detailed root cause, affected-version range, exploit prerequisites, or patch details.

Likely exposure

Likely exposure is applications that used LangChain v0.0.64 and PALChain on input reachable by remote or untrusted users. The bundle lists affected vendor/product as n/a and provides no CPEs, so asset matching requires dependency inventory and code review.

Exploitation context

No source in the bundle confirms active exploitation, and the CVE is not listed as KEV. The risk is still serious because arbitrary code execution can affect confidentiality, integrity, and availability when the vulnerable path is reachable.

Researcher notes

The source bundle is sparse: no CVSS, CWE, CPE, exploit evidence, or fixed version is included. Focus validation on dependency version, PALChain reachability, and trust boundaries. Do not assume all LangChain deployments are affected without confirming v0.0.64 and relevant PALChain use.

Mitigation direction

  • Check LangChain issue #5872 and PR #6003 for vendor remediation guidance.
  • Inventory applications using langchain v0.0.64 and PALChain.
  • Disable PALChain exposure to untrusted users until remediation is confirmed.
  • Upgrade or pin versions only according to confirmed LangChain guidance.
  • Restrict network access to affected application paths where feasible.

Validation and detection

  • Search dependency manifests for langchain v0.0.64.
  • Review code for PALChain usage in remote-facing workflows.
  • Confirm whether user-controlled input can reach PALChain execution.
  • Check runtime logs for unexpected PALChain or code-execution errors.
  • Document uncertainty where affected-version or fix data is unavailable.
Prepared
Confidence
medium
Sources
4

Generated from the cited source records. This long-tail analysis has not been individually reviewed by a named human.

Potential ATT&CK relevance

Conservative CVE-to-ATT&CK context

These mappings and lookup hints may be relevant to the vulnerability behavior, CWE, affected product, or exposure path. Glexia-inferred context is not an official MITRE, ATT&CK, CWE, or CVE Program mapping.

ATT&CK lookup starting points

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description · low confidence lookup

Execution behavior lookup

The CVE wording references code or command execution, so execution technique review may help defensive triage. This is a Glexia inferred lookup path, not an official MITRE, ATT&CK, or CVE Program mapping.

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cve · low confidence lookup

CVE-2023-36188 mapping review

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Vulnerability profileCVE Program record
Severity
Unknown
CVSS
Not scored
Known Exploited
No
Published
Official CVE source material

CNA and ADP enrichment extracted from CVE v5

These fields come from the CVE record and ADP containers, not from Glexia's Take. They preserve time-varying source decisions such as CISA SSVC, KEV status, CVSS metrics, and provider references.

0CVSS vectors
0Timeline events
0ADP providers
3Source links

CVSS and timeline data

No CVSS vectors or timeline events were available in the normalized CVE source material.

Affected products

Products and packages named in the record

VendorProductVersion / packageStatus
n/an/an/aListed
Weakness

CWE details

No CWE listed

CWE links open Glexia weakness intelligence pages with official CWE context, developer remediation guidance, and related CVE mappings.