Infinite loop in github.com/antchfx/xpath

{
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2",
  "cveMetadata": {
    "cveId": "CVE-2026-32287",
    "assignerOrgId": "1bb62c36-49e3-4200-9d77-64a1400537cc",
    "assignerShortName": "Go",
    "dateUpdated": "2026-03-26T19:40:52.142Z",
    "dateReserved": "2026-03-11T16:38:46.556Z",
    "datePublished": "2026-03-26T19:40:52.142Z",
    "state": "PUBLISHED"
  },
  "containers": {
    "cna": {
      "providerMetadata": {
        "orgId": "1bb62c36-49e3-4200-9d77-64a1400537cc",
        "shortName": "Go",
        "dateUpdated": "2026-03-26T19:40:52.142Z"
      },
      "title": "Infinite loop in github.com/antchfx/xpath",
      "descriptions": [
        {
          "lang": "en",
          "value": "Boolean XPath expressions that evaluate to true can cause an infinite loop in logicalQuery.Select, leading to 100% CPU usage. This can be triggered by top-level selectors such as \"1=1\" or \"true()\"."
        }
      ],
      "affected": [
        {
          "vendor": "github.com/antchfx/xpath",
          "product": "github.com/antchfx/xpath",
          "collectionURL": "https://pkg.go.dev",
          "packageName": "github.com/antchfx/xpath",
          "programRoutines": [
            {
              "name": "logicalQuery.Select"
            },
            {
              "name": "Expr.Evaluate"
            },
            {
              "name": "NodeIterator.MoveNext"
            },
            {
              "name": "ancestorQuery.Evaluate"
            },
            {
              "name": "ancestorQuery.Select"
            },
            {
              "name": "attributeQuery.Evaluate"
            },
            {
              "name": "attributeQuery.Select"
            },
            {
              "name": "booleanQuery.Evaluate"
            },
            {
              "name": "booleanQuery.Select"
            },
            {
              "name": "cachedChildQuery.Evaluate"
            },
            {
              "name": "cachedChildQuery.Select"
            },
            {
              "name": "childQuery.Evaluate"
            },
            {
              "name": "childQuery.Select"
            },
            {
              "name": "descendantOverDescendantQuery.Evaluate"
            },
            {
              "name": "descendantOverDescendantQuery.Select"
            },
            {
              "name": "descendantQuery.Evaluate"
            },
            {
              "name": "descendantQuery.Select"
            },
            {
              "name": "filterQuery.Evaluate"
            },
            {
              "name": "filterQuery.Select"
            },
            {
              "name": "followingQuery.Evaluate"
            },
            {
              "name": "followingQuery.Select"
            },
            {
              "name": "functionQuery.Evaluate"
            },
            {
              "name": "groupQuery.Evaluate"
            },
            {
              "name": "groupQuery.Select"
            },
            {
              "name": "lastFuncQuery.Evaluate"
            },
            {
              "name": "logicalQuery.Evaluate"
            },
            {
              "name": "mergeQuery.Evaluate"
            },
            {
              "name": "mergeQuery.Select"
            },
            {
              "name": "numericQuery.Evaluate"
            },
            {
              "name": "parentQuery.Evaluate"
            },
            {
              "name": "parentQuery.Select"
            },
            {
              "name": "precedingQuery.Evaluate"
            },
            {
              "name": "precedingQuery.Select"
            },
            {
              "name": "selfQuery.Evaluate"
            },
            {
              "name": "selfQuery.Select"
            },
            {
              "name": "transformFunctionQuery.Evaluate"
            },
            {
              "name": "transformFunctionQuery.Select"
            },
            {
              "name": "unionQuery.Evaluate"
            },
            {
              "name": "unionQuery.Select"
            }
          ],
          "defaultStatus": "unaffected",
          "versions": [
            {
              "version": "0",
              "status": "affected",
              "versionType": "semver",
              "lessThan": "1.3.6"
            }
          ]
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "lang": "en",
              "description": "CWE-835: Loop with Unreachable Exit Condition ('Infinite Loop')"
            }
          ]
        }
      ],
      "references": [
        {
          "url": "https://github.com/antchfx/xpath/issues/121"
        },
        {
          "url": "https://github.com/antchfx/xpath/commit/afd4762cc342af56345a3fb4002a59281fcab494"
        },
        {
          "url": "https://github.com/golang/vulndb/issues/4526"
        },
        {
          "url": "https://pkg.go.dev/vuln/GO-2026-4526"
        }
      ]
    }
  }
}