CVE-2026-14742 (GCVE-0-2026-14742)
Vulnerability from cvelistv5
Published
2026-07-05 10:45
Modified
2026-07-06 17:59
CWE
Summary
A vulnerability was determined in langchain-ai langgraph up to 1.2.4. The affected element is the function _freeze of the file libs/langgraph/langgraph/_internal/_cache.py of the component Task Result Cache. This manipulation of the argument default_cache_key causes use of weak hash. The attack is possible to be carried out remotely. The complexity of an attack is rather high. The exploitability is described as difficult. The exploit has been publicly disclosed and may be utilized. The pull request to fix this issue awaits acceptance.
References
Impacted products
Vendor Product Version
langchain-ai langgraph Version: 1.2.0
Version: 1.2.1
Version: 1.2.2
Version: 1.2.3
Version: 1.2.4
    cpe:2.3:a:langchain-ai:langgraph:*:*:*:*:*:*:*:*
Create a notification for this product.
Show details on NVD website


{
  "containers": {
    "adp": [
      {
        "metrics": [
          {
            "other": {
              "content": {
                "id": "CVE-2026-14742",
                "options": [
                  {
                    "Exploitation": "poc"
                  },
                  {
                    "Automatable": "no"
                  },
                  {
                    "Technical Impact": "partial"
                  }
                ],
                "role": "CISA Coordinator",
                "timestamp": "2026-07-06T17:59:36.498934Z",
                "version": "2.0.3"
              },
              "type": "ssvc"
            }
          }
        ],
        "providerMetadata": {
          "dateUpdated": "2026-07-06T17:59:43.776Z",
          "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "shortName": "CISA-ADP"
        },
        "title": "CISA ADP Vulnrichment"
      }
    ],
    "cna": {
      "affected": [
        {
          "cpes": [
            "cpe:2.3:a:langchain-ai:langgraph:*:*:*:*:*:*:*:*"
          ],
          "modules": [
            "Task Result Cache"
          ],
          "product": "langgraph",
          "vendor": "langchain-ai",
          "versions": [
            {
              "status": "affected",
              "version": "1.2.0"
            },
            {
              "status": "affected",
              "version": "1.2.1"
            },
            {
              "status": "affected",
              "version": "1.2.2"
            },
            {
              "status": "affected",
              "version": "1.2.3"
            },
            {
              "status": "affected",
              "version": "1.2.4"
            }
          ]
        }
      ],
      "credits": [
        {
          "lang": "en",
          "type": "reporter",
          "value": "Dem0 (VulDB User)"
        },
        {
          "lang": "en",
          "type": "coordinator",
          "value": "VulDB CNA Team"
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "A vulnerability was determined in langchain-ai langgraph up to 1.2.4. The affected element is the function _freeze of the file libs/langgraph/langgraph/_internal/_cache.py of the component Task Result Cache. This manipulation of the argument default_cache_key causes use of weak hash. The attack is possible to be carried out remotely. The complexity of an attack is rather high. The exploitability is described as difficult. The exploit has been publicly disclosed and may be utilized. The pull request to fix this issue awaits acceptance."
        }
      ],
      "metrics": [
        {
          "cvssV4_0": {
            "baseScore": 2.3,
            "baseSeverity": "LOW",
            "vectorString": "CVSS:4.0/AV:N/AC:H/AT:N/PR:L/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N/E:P",
            "version": "4.0"
          }
        },
        {
          "cvssV3_1": {
            "baseScore": 3.1,
            "baseSeverity": "LOW",
            "vectorString": "CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:L/I:N/A:N/E:P/RL:X/RC:R",
            "version": "3.1"
          }
        },
        {
          "cvssV3_0": {
            "baseScore": 3.1,
            "baseSeverity": "LOW",
            "vectorString": "CVSS:3.0/AV:N/AC:H/PR:L/UI:N/S:U/C:L/I:N/A:N/E:P/RL:X/RC:R",
            "version": "3.0"
          }
        },
        {
          "cvssV2_0": {
            "baseScore": 2.1,
            "vectorString": "AV:N/AC:H/Au:S/C:P/I:N/A:N/E:POC/RL:ND/RC:UR",
            "version": "2.0"
          }
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "cweId": "CWE-328",
              "description": "Use of Weak Hash",
              "lang": "en",
              "type": "CWE"
            }
          ]
        },
        {
          "descriptions": [
            {
              "cweId": "CWE-327",
              "description": "Risky Cryptographic Algorithm",
              "lang": "en",
              "type": "CWE"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-07-05T10:45:09.243Z",
        "orgId": "1af790b2-7ee1-4545-860a-a788eba489b5",
        "shortName": "VulDB"
      },
      "references": [
        {
          "name": "VDB-376328 | langchain-ai langgraph Task Result Cache _cache.py _freeze weak hash",
          "tags": [
            "vdb-entry",
            "technical-description"
          ],
          "url": "https://vuldb.com/vuln/376328"
        },
        {
          "name": "VDB-376328 | CTI Indicators (IOB, IOC, TTP, IOA)",
          "tags": [
            "signature",
            "permissions-required"
          ],
          "url": "https://vuldb.com/vuln/376328/cti"
        },
        {
          "name": "CVE-2026-14742 | CVE Analysis and Report",
          "tags": [
            "third-party-advisory"
          ],
          "url": "https://vuldb.com/cve/CVE-2026-14742"
        },
        {
          "name": "Submit #849217 | langchain-ai langgraph 1.2.4 Use of Weak Hash",
          "tags": [
            "third-party-advisory"
          ],
          "url": "https://vuldb.com/submit/849217"
        },
        {
          "tags": [
            "exploit",
            "issue-tracking"
          ],
          "url": "https://github.com/langchain-ai/langgraph/issues/8009"
        },
        {
          "tags": [
            "issue-tracking",
            "patch"
          ],
          "url": "https://github.com/langchain-ai/langgraph/pull/8069"
        },
        {
          "tags": [
            "product"
          ],
          "url": "https://github.com/langchain-ai/langgraph/"
        }
      ],
      "timeline": [
        {
          "lang": "en",
          "time": "2026-07-04T00:00:00.000Z",
          "value": "Advisory disclosed"
        },
        {
          "lang": "en",
          "time": "2026-07-04T02:00:00.000Z",
          "value": "VulDB entry created"
        },
        {
          "lang": "en",
          "time": "2026-07-04T14:51:42.000Z",
          "value": "VulDB entry last update"
        }
      ],
      "title": "langchain-ai langgraph Task Result Cache _cache.py _freeze weak hash"
    }
  },
  "cveMetadata": {
    "assignerOrgId": "1af790b2-7ee1-4545-860a-a788eba489b5",
    "assignerShortName": "VulDB",
    "cveId": "CVE-2026-14742",
    "datePublished": "2026-07-05T10:45:09.243Z",
    "dateReserved": "2026-07-04T12:46:38.803Z",
    "dateUpdated": "2026-07-06T17:59:43.776Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2",
  "vulnerability-lookup:meta": {
    "vulnrichment": {
      "containers": "{\"adp\": [{\"title\": \"CISA ADP Vulnrichment\", \"metrics\": [{\"other\": {\"type\": \"ssvc\", \"content\": {\"id\": \"CVE-2026-14742\", \"role\": \"CISA Coordinator\", \"options\": [{\"Exploitation\": \"poc\"}, {\"Automatable\": \"no\"}, {\"Technical Impact\": \"partial\"}], \"version\": \"2.0.3\", \"timestamp\": \"2026-07-06T17:59:36.498934Z\"}}}], \"providerMetadata\": {\"orgId\": \"134c704f-9b21-4f2e-91b3-4a467353bcc0\", \"shortName\": \"CISA-ADP\", \"dateUpdated\": \"2026-07-06T17:59:40.746Z\"}}], \"cna\": {\"title\": \"langchain-ai langgraph Task Result Cache _cache.py _freeze weak hash\", \"credits\": [{\"lang\": \"en\", \"type\": \"reporter\", \"value\": \"Dem0 (VulDB User)\"}, {\"lang\": \"en\", \"type\": \"coordinator\", \"value\": \"VulDB CNA Team\"}], \"metrics\": [{\"cvssV4_0\": {\"version\": \"4.0\", \"baseScore\": 2.3, \"baseSeverity\": \"LOW\", \"vectorString\": \"CVSS:4.0/AV:N/AC:H/AT:N/PR:L/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N/E:P\"}}, {\"cvssV3_1\": {\"version\": \"3.1\", \"baseScore\": 3.1, \"baseSeverity\": \"LOW\", \"vectorString\": \"CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:L/I:N/A:N/E:P/RL:X/RC:R\"}}, {\"cvssV3_0\": {\"version\": \"3.0\", \"baseScore\": 3.1, \"baseSeverity\": \"LOW\", \"vectorString\": \"CVSS:3.0/AV:N/AC:H/PR:L/UI:N/S:U/C:L/I:N/A:N/E:P/RL:X/RC:R\"}}, {\"cvssV2_0\": {\"version\": \"2.0\", \"baseScore\": 2.1, \"vectorString\": \"AV:N/AC:H/Au:S/C:P/I:N/A:N/E:POC/RL:ND/RC:UR\"}}], \"affected\": [{\"cpes\": [\"cpe:2.3:a:langchain-ai:langgraph:*:*:*:*:*:*:*:*\"], \"vendor\": \"langchain-ai\", \"modules\": [\"Task Result Cache\"], \"product\": \"langgraph\", \"versions\": [{\"status\": \"affected\", \"version\": \"1.2.0\"}, {\"status\": \"affected\", \"version\": \"1.2.1\"}, {\"status\": \"affected\", \"version\": \"1.2.2\"}, {\"status\": \"affected\", \"version\": \"1.2.3\"}, {\"status\": \"affected\", \"version\": \"1.2.4\"}]}], \"timeline\": [{\"lang\": \"en\", \"time\": \"2026-07-04T00:00:00.000Z\", \"value\": \"Advisory disclosed\"}, {\"lang\": \"en\", \"time\": \"2026-07-04T02:00:00.000Z\", \"value\": \"VulDB entry created\"}, {\"lang\": \"en\", \"time\": \"2026-07-04T14:51:42.000Z\", \"value\": \"VulDB entry last update\"}], \"references\": [{\"url\": \"https://vuldb.com/vuln/376328\", \"name\": \"VDB-376328 | langchain-ai langgraph Task Result Cache _cache.py _freeze weak hash\", \"tags\": [\"vdb-entry\", \"technical-description\"]}, {\"url\": \"https://vuldb.com/vuln/376328/cti\", \"name\": \"VDB-376328 | CTI Indicators (IOB, IOC, TTP, IOA)\", \"tags\": [\"signature\", \"permissions-required\"]}, {\"url\": \"https://vuldb.com/cve/CVE-2026-14742\", \"name\": \"CVE-2026-14742 | CVE Analysis and Report\", \"tags\": [\"third-party-advisory\"]}, {\"url\": \"https://vuldb.com/submit/849217\", \"name\": \"Submit #849217 | langchain-ai langgraph 1.2.4 Use of Weak Hash\", \"tags\": [\"third-party-advisory\"]}, {\"url\": \"https://github.com/langchain-ai/langgraph/issues/8009\", \"tags\": [\"exploit\", \"issue-tracking\"]}, {\"url\": \"https://github.com/langchain-ai/langgraph/pull/8069\", \"tags\": [\"issue-tracking\", \"patch\"]}, {\"url\": \"https://github.com/langchain-ai/langgraph/\", \"tags\": [\"product\"]}], \"descriptions\": [{\"lang\": \"en\", \"value\": \"A vulnerability was determined in langchain-ai langgraph up to 1.2.4. The affected element is the function _freeze of the file libs/langgraph/langgraph/_internal/_cache.py of the component Task Result Cache. This manipulation of the argument default_cache_key causes use of weak hash. The attack is possible to be carried out remotely. The complexity of an attack is rather high. The exploitability is described as difficult. The exploit has been publicly disclosed and may be utilized. The pull request to fix this issue awaits acceptance.\"}], \"problemTypes\": [{\"descriptions\": [{\"lang\": \"en\", \"type\": \"CWE\", \"cweId\": \"CWE-328\", \"description\": \"Use of Weak Hash\"}]}, {\"descriptions\": [{\"lang\": \"en\", \"type\": \"CWE\", \"cweId\": \"CWE-327\", \"description\": \"Risky Cryptographic Algorithm\"}]}], \"providerMetadata\": {\"orgId\": \"1af790b2-7ee1-4545-860a-a788eba489b5\", \"shortName\": \"VulDB\", \"dateUpdated\": \"2026-07-05T10:45:09.243Z\"}}}",
      "cveMetadata": "{\"cveId\": \"CVE-2026-14742\", \"state\": \"PUBLISHED\", \"dateUpdated\": \"2026-07-06T17:59:43.776Z\", \"dateReserved\": \"2026-07-04T12:46:38.803Z\", \"assignerOrgId\": \"1af790b2-7ee1-4545-860a-a788eba489b5\", \"datePublished\": \"2026-07-05T10:45:09.243Z\", \"assignerShortName\": \"VulDB\"}",
      "dataType": "CVE_RECORD",
      "dataVersion": "5.2"
    }
  }
}


Log in or create an account to share your comment.




Tags
Taxonomy of the tags.


Loading…

Loading…

Loading…

Sightings

Author Source Type Date

Nomenclature

  • Seen: The vulnerability was mentioned, discussed, or seen somewhere by the user.
  • Confirmed: The vulnerability is confirmed from an analyst perspective.
  • Published Proof of Concept: A public proof of concept is available for this vulnerability.
  • Exploited: This vulnerability was exploited and seen by the user reporting the sighting.
  • Patched: This vulnerability was successfully patched by the user reporting the sighting.
  • Not exploited: This vulnerability was not exploited or seen by the user reporting the sighting.
  • Not confirmed: The user expresses doubt about the veracity of the vulnerability.
  • Not patched: This vulnerability was not successfully patched by the user reporting the sighting.


Loading…

Loading…