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VulnerabilityPublished Updated

CVE-2026-111181: Node body parser · body-parser is body parsing middleware for Node.js and Express

Affects node-body-parserSource GCVE Database

0
Authoritative record:CVE-2026-111181· High 7.5

Not known to be exploited · CVSS 7.5 High · fixed in 2.4.0 : patch node-body-parser soon.

Data as of 28 Oct 2026, 22:31 UTC

CVSS 3.1 base score
7.5High
How severe the flaw is on the 0–10 CVSS scale.
Patch
Available – fixed in 2.4.0
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Exploitation evidence

  1. Disclosed: evidence found.

    CVE published 22 Oct 2026

  2. Detectable: no evidence on record.

    No public nuclei template indexed

  3. Weaponised: no evidence on record.

    No public exploit code indexed in Metasploit or Exploit-DB

  4. Exploited in the wild: no evidence on record.

    Not in CISA KEV and no source reports exploitation

  5. Observed by OffSeq Mirage: no evidence on record.

    No attack traffic recorded by OffSeq Mirage sensors

A missing step is not evidence of safety. Sources: cve.org (opens in a new tab), the Metasploit, Exploit-DB and nuclei-templates index as of 26 Oct 2026.

What to do

Affected software

ProductAffectedFixed in
Ubuntu 26.10node-body-parserpkg:deb/ubuntu/node-body-parser?arch=source&distro=stonkingOther threatsAffected
  • =2.2.2+~1.19.6-1
  • =2.3.0+~1.19.6-1
Fixed in–
Ubuntu 26.04 LTSnode-body-parserpkg:deb/ubuntu/node-body-parser?arch=source&distro=resoluteOther threatsAffected
  • =1.20.3+~1.19.5-3
  • =2.2.0+~1.19.6-1
  • =2.2.2+~1.19.6-1
Fixed in–
Ubuntu 24.04 LTSnode-body-parserpkg:deb/ubuntu/node-body-parser?arch=source&distro=nobleOther threatsAffected
  • =1.20.1+~1.19.2-1
  • =1.20.2+~1.19.5-1
  • =1.20.2+~1.19.5-1build2
Fixed in–
Ubuntu 22.04 LTSnode-body-parserpkg:deb/ubuntu/node-body-parser?arch=source&distro=jammyOther threatsAffected
  • 1.19.0-2 – 1.19.2+~1.19.2-1
4 affected builds
Fixed in–
Ubuntu 20.04 LTSnode-body-parserpkg:deb/ubuntu/node-body-parser?arch=source&distro=focalOther threatsAffected
  • =1.18.3-2
  • =1.19.0-2
Fixed in–
Ubuntu 18.04 LTSnode-body-parserpkg:deb/ubuntu/node-body-parser?arch=source&distro=bionicOther threatsAffected
  • =1.8.1-1
  • =1.8.1-1ubuntu1
Fixed in–

Check your own hosts for these packages with threat-finder (opens in a new tab), our free open-source scanner.

Description

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.

References

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