Vulnerability-Lookup

PYSEC-2026-1238

Vulnerability from pysec - Published: 2026-07-07 16:03 - Updated: 2026-07-07 17:23

Details

Chainlit versions prior to 2.8.5 contain an authorization bypass through user-controlled key vulnerability. If this vulnerability is exploited, threads may be viewed or thread ownership may be obtained by an attacker who can log in to the product.

Severity

4.2 (Medium)


                  
                    CVSS:3.0/AV:N/AC:H/PR:L/UI:N/S:U/C:L/I:L/A:N

2.3 (Low)


                  
                    CVSS:4.0/AV:N/AC:L/AT:P/PR:L/UI:N/VC:L/VI:L/VA:N/SC:N/SI:N/SA:N

Impacted products

Name	purl
chainlit	pkg:pypi/chainlit

Aliases

JSON

To clipboard

{
  "affected": [
    {
      "package": {
        "ecosystem": "PyPI",
        "name": "chainlit",
        "purl": "pkg:pypi/chainlit"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "2.8.5"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "0.1.0",
        "0.1.1",
        "0.1.101",
        "0.1.102",
        "0.1.103",
        "0.2.0",
        "0.2.1",
        "0.2.101",
        "0.2.102",
        "0.2.103",
        "0.2.104",
        "0.2.105",
        "0.2.106",
        "0.2.107",
        "0.2.108",
        "0.2.109",
        "0.2.110",
        "0.2.111",
        "0.3.0",
        "0.4.0",
        "0.4.1",
        "0.4.101",
        "0.4.2",
        "0.4.3",
        "0.5.0",
        "0.5.1",
        "0.5.2",
        "0.6.0",
        "0.6.1",
        "0.6.2",
        "0.6.3",
        "0.6.4",
        "0.6.401",
        "0.6.402",
        "0.7.0",
        "0.7.1",
        "0.7.2",
        "0.7.3",
        "0.7.301",
        "0.7.400",
        "0.7.500",
        "0.7.501",
        "0.7.600rc0",
        "0.7.600rc1",
        "0.7.601rc0",
        "0.7.602",
        "0.7.602rc0",
        "0.7.603",
        "0.7.604",
        "0.7.604rc0",
        "0.7.604rc1",
        "0.7.604rc2",
        "0.7.700",
        "1.0.0",
        "1.0.0rc0",
        "1.0.0rc1",
        "1.0.0rc2",
        "1.0.0rc3",
        "1.0.100",
        "1.0.101",
        "1.0.200",
        "1.0.300",
        "1.0.301",
        "1.0.400",
        "1.0.401",
        "1.0.500",
        "1.0.501",
        "1.0.502",
        "1.0.503",
        "1.0.504",
        "1.0.505",
        "1.0.506",
        "1.1.0",
        "1.1.0rc0",
        "1.1.0rc1",
        "1.1.101",
        "1.1.200",
        "1.1.201",
        "1.1.202",
        "1.1.300",
        "1.1.300rc0",
        "1.1.300rc1",
        "1.1.300rc2",
        "1.1.300rc3",
        "1.1.300rc4",
        "1.1.300rc5",
        "1.1.301",
        "1.1.302",
        "1.1.303",
        "1.1.304",
        "1.1.305",
        "1.1.306",
        "1.1.400",
        "1.1.400rc0",
        "1.1.400rc1",
        "1.1.401",
        "1.1.402",
        "1.1.403rc0",
        "1.1.404",
        "1.2.0",
        "1.2.0rc0",
        "1.3.0",
        "1.3.0rc0",
        "1.3.0rc1",
        "1.3.1",
        "1.3.2",
        "2.0.0",
        "2.0.1",
        "2.0.2",
        "2.0.3",
        "2.0.4",
        "2.0.5",
        "2.0.6",
        "2.0.601",
        "2.0.602",
        "2.0.603",
        "2.0.dev0",
        "2.0.dev1",
        "2.0.dev2",
        "2.0rc0",
        "2.0rc1",
        "2.1.0",
        "2.1.1",
        "2.1.2",
        "2.2.0",
        "2.2.1",
        "2.3.0",
        "2.4.0",
        "2.4.0rc0",
        "2.4.1",
        "2.4.2",
        "2.4.201",
        "2.4.3",
        "2.4.301",
        "2.4.302",
        "2.4.400",
        "2.5.5",
        "2.6.0",
        "2.6.1",
        "2.6.2",
        "2.6.3",
        "2.6.4",
        "2.6.5",
        "2.6.6",
        "2.6.7",
        "2.6.8",
        "2.6.9",
        "2.7.0",
        "2.7.1",
        "2.7.1.1",
        "2.7.2",
        "2.8.0",
        "2.8.1",
        "2.8.2",
        "2.8.3",
        "2.8.4"
      ]
    }
  ],
  "aliases": [
    "CVE-2025-68492",
    "GHSA-v492-6xx2-p57g"
  ],
  "details": "Chainlit versions prior to 2.8.5 contain an authorization bypass through user-controlled key vulnerability. If this vulnerability is exploited, threads may be viewed or thread ownership may be obtained by an attacker who can log in to the product.",
  "id": "PYSEC-2026-1238",
  "modified": "2026-07-07T17:23:53.606108Z",
  "published": "2026-07-07T16:03:18.754455Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2025-68492"
    },
    {
      "type": "WEB",
      "url": "https://github.com/Chainlit/chainlit/pull/2637"
    },
    {
      "type": "WEB",
      "url": "https://github.com/Chainlit/chainlit/commit/8f1153db439eca58ae5c50c8276ba6fdd311448e"
    },
    {
      "type": "PACKAGE",
      "url": "https://github.com/Chainlit/chainlit"
    },
    {
      "type": "WEB",
      "url": "https://github.com/Chainlit/chainlit/releases"
    },
    {
      "type": "WEB",
      "url": "https://github.com/Chainlit/chainlit/releases/tag/2.8.5"
    },
    {
      "type": "WEB",
      "url": "https://jvn.jp/en/jp/JVN34964581"
    },
    {
      "type": "PACKAGE",
      "url": "https://pypi.org/project/chainlit"
    },
    {
      "type": "ADVISORY",
      "url": "https://github.com/advisories/GHSA-v492-6xx2-p57g"
    }
  ],
  "severity": [
    {
      "score": "CVSS:3.0/AV:N/AC:H/PR:L/UI:N/S:U/C:L/I:L/A:N",
      "type": "CVSS_V3"
    },
    {
      "score": "CVSS:4.0/AV:N/AC:L/AT:P/PR:L/UI:N/VC:L/VI:L/VA:N/SC:N/SI:N/SA:N",
      "type": "CVSS_V4"
    }
  ],
  "summary": "Chainlit contains an authorization bypass vulnerability"
}

CVE-2025-68492 (GCVE-0-2025-68492)

Vulnerability from cvelistv5 – Published: 2026-01-14 06:27 – Updated: 2026-01-15 17:24

Summary

Severity

4.2 (Medium)


                        
                          CVSS:3.0/AV:N/AC:H/PR:L/UI:N/S:U/C:L/I:L/A:N

2.3 (Low)


                        
                          CVSS:4.0/AV:N/AC:L/AT:P/PR:L/UI:N/VC:L/VI:L/VA:N/SC:N/SI:N/SA:N

SSVC

Exploitation: none Automatable: no Technical Impact: partial

CISA Coordinator · CISA-ADP (v2.0.3)

Decision recorded 2026-01-15 17:24 UTC

CWE

CWE-639 - Authorization bypass through user-controlled key

Assigner

jpcert CNA under the jpcert root

CNA scorecard C 64/100 over 190 records in the last 180 days details

References

2 references

URL	Tags
https://github.com/Chainlit/chainlit/releases
https://jvn.jp/en/jp/JVN34964581/

Impacted products

1 product

Vendor	Product	Version
Chainlit	Chainlit	Affected: prior to 2.8.5

Show details on NVD website

JSON

To clipboard

{
  "containers": {
    "adp": [
      {
        "metrics": [
          {
            "other": {
              "content": {
                "id": "CVE-2025-68492",
                "options": [
                  {
                    "Exploitation": "none"
                  },
                  {
                    "Automatable": "no"
                  },
                  {
                    "Technical Impact": "partial"
                  }
                ],
                "role": "CISA Coordinator",
                "timestamp": "2026-01-15T17:24:22.331411Z",
                "version": "2.0.3"
              },
              "type": "ssvc"
            }
          }
        ],
        "providerMetadata": {
          "dateUpdated": "2026-01-15T17:24:34.226Z",
          "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "shortName": "CISA-ADP"
        },
        "title": "CISA ADP Vulnrichment"
      }
    ],
    "cna": {
      "affected": [
        {
          "product": "Chainlit",
          "vendor": "Chainlit",
          "versions": [
            {
              "status": "affected",
              "version": "prior to 2.8.5"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "Chainlit versions prior to 2.8.5 contain an authorization bypass through user-controlled key vulnerability. If this vulnerability is exploited, threads may be viewed or thread ownership may be obtained by an attacker who can log in to the product."
        }
      ],
      "metrics": [
        {
          "cvssV3_0": {
            "baseScore": 4.2,
            "baseSeverity": "MEDIUM",
            "vectorString": "CVSS:3.0/AV:N/AC:H/PR:L/UI:N/S:U/C:L/I:L/A:N",
            "version": "3.0"
          },
          "format": "CVSS",
          "scenarios": [
            {
              "lang": "en-US",
              "value": "GENERAL"
            }
          ]
        },
        {
          "cvssV4_0": {
            "baseScore": 2.3,
            "baseSeverity": "LOW",
            "vectorString": "CVSS:4.0/AV:N/AC:L/AT:P/PR:L/UI:N/VC:L/VI:L/VA:N/SC:N/SI:N/SA:N",
            "version": "4.0"
          },
          "format": "CVSS",
          "scenarios": [
            {
              "lang": "en-US",
              "value": "GENERAL"
            }
          ]
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "cweId": "CWE-639",
              "description": "Authorization bypass through user-controlled key",
              "lang": "en-US",
              "type": "CWE"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-01-14T06:27:14.846Z",
        "orgId": "ede6fdc4-6654-4307-a26d-3331c018e2ce",
        "shortName": "jpcert"
      },
      "references": [
        {
          "url": "https://github.com/Chainlit/chainlit/releases"
        },
        {
          "url": "https://jvn.jp/en/jp/JVN34964581/"
        }
      ]
    }
  },
  "cveMetadata": {
    "assignerOrgId": "ede6fdc4-6654-4307-a26d-3331c018e2ce",
    "assignerShortName": "jpcert",
    "cveId": "CVE-2025-68492",
    "datePublished": "2026-01-14T06:27:14.846Z",
    "dateReserved": "2025-12-19T04:48:45.762Z",
    "dateUpdated": "2026-01-15T17:24:34.226Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2"
}

GHSA-V492-6XX2-P57G

Vulnerability from github – Published: 2026-01-14 09:31 – Updated: 2026-01-14 21:16

Summary

Chainlit contains an authorization bypass vulnerability

Details

Severity

4.2 (Medium)


                  
                    CVSS:3.0/AV:N/AC:H/PR:L/UI:N/S:U/C:L/I:L/A:N

2.3 (Low)


                  
                    CVSS:4.0/AV:N/AC:L/AT:P/PR:L/UI:N/VC:L/VI:L/VA:N/SC:N/SI:N/SA:N

Show details on source website

JSON

To clipboard

{
  "affected": [
    {
      "package": {
        "ecosystem": "PyPI",
        "name": "chainlit"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "2.8.5"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    }
  ],
  "aliases": [
    "CVE-2025-68492"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-639"
    ],
    "github_reviewed": true,
    "github_reviewed_at": "2026-01-14T21:16:04Z",
    "nvd_published_at": "2026-01-14T07:16:14Z",
    "severity": "LOW"
  },
  "details": "Chainlit versions prior to 2.8.5 contain an authorization bypass through user-controlled key vulnerability. If this vulnerability is exploited, threads may be viewed or thread ownership may be obtained by an attacker who can log in to the product.",
  "id": "GHSA-v492-6xx2-p57g",
  "modified": "2026-01-14T21:16:04Z",
  "published": "2026-01-14T09:31:21Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2025-68492"
    },
    {
      "type": "WEB",
      "url": "https://github.com/Chainlit/chainlit/pull/2637"
    },
    {
      "type": "WEB",
      "url": "https://github.com/Chainlit/chainlit/commit/8f1153db439eca58ae5c50c8276ba6fdd311448e"
    },
    {
      "type": "PACKAGE",
      "url": "https://github.com/Chainlit/chainlit"
    },
    {
      "type": "WEB",
      "url": "https://github.com/Chainlit/chainlit/releases"
    },
    {
      "type": "WEB",
      "url": "https://github.com/Chainlit/chainlit/releases/tag/2.8.5"
    },
    {
      "type": "WEB",
      "url": "https://jvn.jp/en/jp/JVN34964581"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.0/AV:N/AC:H/PR:L/UI:N/S:U/C:L/I:L/A:N",
      "type": "CVSS_V3"
    },
    {
      "score": "CVSS:4.0/AV:N/AC:L/AT:P/PR:L/UI:N/VC:L/VI:L/VA:N/SC:N/SI:N/SA:N",
      "type": "CVSS_V4"
    }
  ],
  "summary": "Chainlit contains an authorization bypass vulnerability"
}

Sightings

Author	Source	Type	Date	Other

Nomenclature

Seen: The vulnerability was mentioned, discussed, or observed by the user.
Confirmed: The vulnerability has been validated from an analyst's perspective.
Published Proof of Concept: A public proof of concept is available for this vulnerability.
Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
Not confirmed: The user expressed doubt about the validity of the vulnerability.
Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.

Vulnerability timeline

Sightings and recorded dates, grouped by day · UTC

Order JSON

Publication & reservation Sightings KEV catalogs Other timestamps

Loading timeline…

The MITRE ATT&CK techniques below are AI-generated suggestions, inferred from the description of the vulnerability by the CIRCL/vulnerability-attack-technique-classification-roberta-base model, served locally by ML-Gateway. They have not been verified by an analyst and are provided for guidance only.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
Browse all ATT&CK techniques and the vulnerabilities related to each.

Related by attack behaviour

Vulnerabilities whose description is nearest to this one in the vector space of the CIRCL/vulnerability-attack-technique-biencoder model. This is a similarity search over the bi-encoder space (plain cosine), not a classification, and it has no measured accuracy.

Action not permitted

PYSEC-2026-1238

CVE-2025-68492 (GCVE-0-2025-68492)

GHSA-V492-6XX2-P57G

Tags

Sightings

Nomenclature

Vulnerability timeline

Related by attack behaviour