CVE-2026-115775 (GCVE-0-2026-115775)

Vulnerability from cvelistv5 – Published: 2026-10-23 20:16 – Updated: 2026-10-23 20:16
VLAI
Title
Twisted: Unauthenticated Remote Denial of Service in the Twisted words domish XML Element Stream via an Unbounded Element Tree
Summary
Twisted is an event-based framework for internet applications, supporting Python 3.6+. Prior to 26.10.0rc1, the twisted.words.xish.domish ExpatElementStream parser allows an unauthenticated remote peer to keep a container element open while continuously adding child elements. The parser retains the unfinished stanza as an in-memory tree without a byte or element-count limit, and XMPP pre-authentication stream parsing exposes this behavior before credentials are accepted. A single connection can therefore exhaust server memory and terminate the process. This issue is fixed in version 26.10.0rc1.
CWE
  • CWE-400 - Uncontrolled Resource Consumption
  • CWE-770 - Allocation of Resources Without Limits or Throttling
Assigner
GitHub_M CNA under the mitre root
CNA scorecard C 72/100 over 7761 records in the last 180 days details
Impacted products
Vendor Product Version CPE status
twisted twisted Affected: < 26.10.0rc1
guessed Create a notification for this product.
Show details on NVD website

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        }
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      "providerMetadata": {
        "dateUpdated": "2026-10-23T20:16:29.913Z",
        "orgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
        "shortName": "GitHub_M"
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      "references": [
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          "name": "https://github.com/twisted/twisted/security/advisories/GHSA-3476-c5c2-fr73",
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          "url": "https://github.com/twisted/twisted/security/advisories/GHSA-3476-c5c2-fr73"
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      "source": {
        "advisory": "GHSA-3476-c5c2-fr73",
        "discovery": "UNKNOWN"
      },
      "title": "Twisted: Unauthenticated Remote Denial of Service in the Twisted words domish XML Element Stream via an Unbounded Element Tree"
    }
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  "cveMetadata": {
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    "datePublished": "2026-10-23T20:16:29.913Z",
    "dateReserved": "2026-10-23T13:28:51.847Z",
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        "metrics": {
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                "modifiedAttackRequirements": "NOT_DEFINED",
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                "modifiedVulnConfidentialityImpact": "NOT_DEFINED",
                "modifiedVulnIntegrityImpact": "NOT_DEFINED",
                "privilegesRequired": "NONE",
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                "valueDensity": "NOT_DEFINED",
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      "cve": "CVE-2026-115775",
      "id": "CVE-2026-115775",
      "initial_release_date": "2026-10-23T20:16:29.913000+00:00",
      "product_status:known_affected": "16",
      "source": "Red Hat CSAF VEX",
      "status": "final",
      "title": "twisted: twisted: Denial of Service via memory exhaustion in XML stream parser",
      "url": "https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-115775.json",
      "version": "3"
    }
  }
}



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