CVE-2026-115775

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Source
https://cve.org/CVERecord?id=CVE-2026-115775
Import Source
https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-115775.json
JSON Data
https://api.osv.dev/v1/vulns/CVE-2026-115775
Aliases
Downstream
Published
2026-10-23T20:16:29Z
Modified
2026-10-25T02:45:47Z
Severity
  • 8.7 (High) CVSS_V4 - CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N CVSS Calculator
Summary
Twisted: Unauthenticated Remote Denial of Service in the Twisted words domish XML Element Stream via an Unbounded Element Tree
Details

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.

Database specific 
{
    "cna_assigner":  "GitHub_M",
    "cwe_ids":  [
        "CWE-400",
        "CWE-770"
    ],
    "osv_generated_from":  "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/115xxx/CVE-2026-115775.json",
    "unresolved_ranges":  [
        {
            "extracted_events":  [
                {
                    "range":  [
                        {
                            "fixed":  "26.10.0rc1"
                        }
                    ],
                    "source":  "AFFECTED_FIELD",
                    "strategy":  "StringRangeExpression"
                }
            ]
        },
        {
            "extracted_events":  [
                {
                    "range":  [
                        {
                            "introduced":  "3.6+"
                        },
                        {
                            "fixed":  "26.10.0rc1"
                        },
                        {
                            "fixed":  "26.10.0rc1"
                        }
                    ],
                    "source":  "DESCRIPTION"
                }
            ]
        }
    ]
}
References

Affected packages

Git / github.com/twisted/twisted

Affected ranges

Type
GIT
Repo
https://github.com/twisted/twisted
Events
Introduced
0 Unknown introduced commit / All previous commits are affected
Fixed
8873814bec8288e2466fad4d2c4d64039beb88b0
Fixed
875d118c9a82a4f55a92ff399bd31f8928a52ad3
Database specific
Show details 
{
    "extracted_events":  [
        {
            "range":  [
                {
                    "fixed":  "8873814bec8288e2466fad4d2c4d64039beb88b0"
                }
            ],
            "source":  "REFERENCES_COMMIT"
        },
        {
            "original_tag":  "twisted-26.10.0rc1",
            "range":  [
                {
                    "fixed":  "875d118c9a82a4f55a92ff399bd31f8928a52ad3"
                }
            ],
            "source":  "REFERENCES_TAG"
        }
    ]
}

Affected versions

Other
before-black

Database specific

source 
"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-115775.json"