CVE-2026-111181

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Source
https://cve.org/CVERecord?id=CVE-2026-111181
Import Source
https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2026-111181.json
JSON Data
https://api.test.osv.dev/v1/vulns/CVE-2026-111181
Aliases
Downstream
AZL (2)
CGA (126)
CLEANSTART (2)
DEBIAN (1)
MINI (7)
openSUSE (2)
ROOT (1)
UBUNTU (1)
Related
openSUSE (2)
Published
2026-10-22T14:29:56Z
Modified
2026-11-06T17:27:29Z
Severity
  • 7.5 (High) CVSS_V3 - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H CVSS Calculator
Summary
body-parser vulnerable to Denial of Service via trailing bytes after a compressed request body
Details

body-parser is body parsing middleware for Node.js and Express. In versions before 1.20.9 and in versions from 2.0.0 before 2.4.0, a single request can crash any application using body-parser with default options. When a request carries a Content-Encoding such as gzip, body-parser pipes it into a decompression stream and, after reading the body, leaves that stream with no error listener. A payload of one valid compressed frame followed by trailing bytes decodes and the application responds normally, but the trailing bytes then reach the already-finished decoder, which emits an error that is re-thrown as an uncaught exception and terminates the process. No matching route is required because body parsing runs before routing, so any endpoint that parses a body is affected. The issue is fixed in body-parser 2.4.0 and 1.20.9, and users should upgrade to one of those versions or later. As a workaround, disable request-body inflation (set the body-parser inflate option to false) so encoded requests are rejected before any decompression stream is created.

Database specific 
{
    "cna_assigner": "openjs",
    "cwe_ids": [
        "CWE-248"
    ],
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/111xxx/CVE-2026-111181.json"
}
References

Affected packages

Git / github.com/expressjs/body-parser

Affected ranges

Type
GIT
Repo
https://github.com/expressjs/body-parser
Events
Introduced
9e06a79ca94da7c603a03d7deec56a54f8951330
Fixed
b4744d739e1e2e5257f2ddac31eed191aa5152a4
Introduced
0 Unknown introduced commit / All previous commits are affected
Fixed
a64f1404e256b3f0e3ce633e081a7593fe482203
Database specific
Show details 
{
    "extracted_events": [
        {
            "range": [
                {
                    "introduced": "2.0.0"
                },
                {
                    "fixed": "2.4.0"
                }
            ],
            "source": "AFFECTED_FIELD",
            "strategy": "StandardRange"
        },
        {
            "range": [
                {
                    "introduced": "0"
                },
                {
                    "fixed": "1.20.9"
                }
            ],
            "source": "AFFECTED_FIELD",
            "strategy": "StandardRange"
        }
    ]
}

Affected versions

1.*
1.0.0
1.0.1
1.0.2
1.1.0
1.1.1
1.1.2
1.10.0
1.10.1
1.10.2
1.11.0
1.12.0
1.12.1
1.12.2
1.12.3
1.12.4
1.13.0
1.13.1
1.13.2
1.13.3
1.14.0
1.14.1
1.14.2
1.15.0
1.15.1
1.15.2
1.16.0
1.16.1
1.17.0
1.17.1
1.17.2
1.18.0
1.18.1
1.18.2
1.18.3
1.19.0
1.19.1
1.19.2
1.2.0
1.2.1
1.2.2
1.20.0
1.20.1
1.20.2
1.20.3
1.20.4
1.20.5
1.20.6
1.20.7
1.20.8
1.3.0
1.3.1
1.4.0
1.4.1
1.4.2
1.4.3
1.5.0
1.5.1
1.5.2
1.6.0
1.6.1
1.6.2
1.6.3
1.6.4
1.6.5
1.6.6
1.6.7
1.7.0
1.8.0
1.8.1
1.8.2
1.8.3
1.8.4
1.9.0
1.9.1
1.9.2
1.9.3
2.*
2.0.0
2.0.1
v2.*
v2.1.0
v2.2.0
v2.2.1
v2.2.2
v2.3.0

Database specific

source 
"https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2026-111181.json"