CVE-2026-115508 (GCVE-0-2026-115508)

Vulnerability from cvelistv5 – Published: 2026-10-22 19:14 – Updated: 2026-10-22 19:14
VLAI
Title
Crawl4AI 0.7.0 before 0.9.5 ReDoS via /crawl Regex Fields
Summary
Crawl4AI 0.7.0 before 0.9.5 contains an inefficient regular expression complexity vulnerability in the Docker API server that allows authenticated API clients to supply unbounded regular expressions in /crawl request bodies. Attackers can submit catastrophic-backtracking patterns via RegexExtractionStrategy.custom, RegexChunking.patterns or JsonCss, JsonXPath and JsonLxml schema regex fields against a crafted page to freeze the entire server, including /health.
CWE
  • CWE-1333 - Inefficient Regular Expression Complexity
Assigner
VulnCheck CNA under the mitre root
CNA scorecard B 84/100 over 6762 records in the last 180 days details
Impacted products
Vendor Product Version CPE status
unclecode crawl4ai Affected: 0.7.0 , < 0.9.5 (semver)
Unaffected: 0.9.5 (semver)
guessed Create a notification for this product.
Date Public
2026-10-02 00:00
Show details on NVD website

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          "packageURL": "pkg:pypi/crawl4ai",
          "product": "crawl4ai",
          "vendor": "unclecode",
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              "status": "affected",
              "version": "0.7.0",
              "versionType": "semver"
            },
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              "version": "0.9.5",
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            }
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      "credits": [
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          "lang": "en",
          "type": "finder",
          "value": "Zhixi Sun (manus-use)"
        },
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          "type": "finder",
          "value": "Siyang Wu"
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        }
      ],
      "metrics": [
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            "baseSeverity": "HIGH",
            "privilegesRequired": "LOW",
            "subAvailabilityImpact": "NONE",
            "subConfidentialityImpact": "NONE",
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              "description": "Inefficient Regular Expression Complexity",
              "lang": "en",
              "type": "CWE"
            }
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      "providerMetadata": {
        "dateUpdated": "2026-10-22T19:14:07.893Z",
        "orgId": "83251b91-4cc7-4094-a5c7-464a1b83ea10",
        "shortName": "VulnCheck"
      },
      "references": [
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          "name": "GitHub Security Advisory (GHSA-j843-8p47-rhxp)",
          "tags": [
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          "url": "https://github.com/unclecode/crawl4ai/security/advisories/GHSA-j843-8p47-rhxp"
        },
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          "url": "https://github.com/unclecode/crawl4ai/commit/8aea2006e2cdb96a185e50b20633fc323dff6429"
        },
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          "name": "crawl4ai v0.9.5 Release Notes",
          "tags": [
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        },
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          "url": "https://github.com/unclecode/crawl4ai"
        },
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          "tags": [
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          "url": "https://www.vulncheck.com/advisories/crawl4ai-0.7.0-before-0.9.5-redos-via-crawl-regex-fields"
        }
      ],
      "title": "Crawl4AI 0.7.0 before 0.9.5 ReDoS via /crawl Regex Fields",
      "x_generator": {
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    }
  },
  "cveMetadata": {
    "assignerOrgId": "83251b91-4cc7-4094-a5c7-464a1b83ea10",
    "assignerShortName": "VulnCheck",
    "cveId": "CVE-2026-115508",
    "datePublished": "2026-10-22T19:14:07.893Z",
    "dateReserved": "2026-10-22T16:15:00.201Z",
    "dateUpdated": "2026-10-22T19:14:07.893Z",
    "state": "PUBLISHED"
  },
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  "dataVersion": "5.2",
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        "cveTags": [],
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          }
        ],
        "id": "CVE-2026-115508",
        "lastModified": "2026-10-22T20:17:06.910",
        "metrics": {
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                "attackVector": "NETWORK",
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                "Recovery": "NOT_DEFINED",
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                "exploitMaturity": "NOT_DEFINED",
                "integrityRequirement": "NOT_DEFINED",
                "modifiedAttackComplexity": "NOT_DEFINED",
                "modifiedAttackRequirements": "NOT_DEFINED",
                "modifiedAttackVector": "NOT_DEFINED",
                "modifiedPrivilegesRequired": "NOT_DEFINED",
                "modifiedSubAvailabilityImpact": "NOT_DEFINED",
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                "modifiedSubIntegrityImpact": "NOT_DEFINED",
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                "privilegesRequired": "LOW",
                "providerUrgency": "NOT_DEFINED",
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}



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